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Chair Polymer Chemistry

Publications of Prof. Dr. Michael Sommer


2019    2018    2017    2016    2015    2014    2013    2012    2011    2010    2009    2008    2007    2006   
Reviews and bookchapters     Cover Articles

[131] Mechanochromic Polymers
Y. Chen, M. Sommer, C. Weder, Macromol. Rapid Commun., 2021, 42, 1.
[130] Electron Mobility of Diketopyrrolopyrrole Copolymers Is Robust against Homocoupling Defects
Q. Wang, S.V. Lenjani, O. Dolynchuk, A.D. Scaccabarozzi, H. Komber, Y. Guo, F. Günther, S. Gemming, R. Magerle, M. Caironi, M. Sommer, Chem. Mater., 2021
[129] Development of conjugated polymers for organic flexible electronics,
M. Sommer, in Organic Flexible Electronics (Eds.: P. Cosseddu, M. Caironi), Woodhead Publishing, 2021,
pp. 27–70.
[128] Substituent effects control spiropyran-merocyanine equilibria and mechanochromic utility
M. Sommer, Macromol. Rapid Commun., 2020 , 2000597.
[127] Semifluorinated, kinked polyarylenes via direct arylation polycondensation
F. Kempe, F. Riehle, H. Komber, R. Matsidik, M. Walter, M. Sommer, Polym. Chem., 2020, 11, 6928-6934 .
[126] Formation of Needle-like Poly(3-hexylthiophene) Crystals from Metastable Solutions
T. Wu, T. Pfohl, S. Chandran, M. Sommer, G. Reiter. Macromolecules, 2020, 53, 8303–8312.
[125] Synthesis of Conjugated Polymers by Sustainable Suzuki Polycondensation in Water and under Aerobic Conditions
A. Sanzone, A. Calascibetta, M. Monti, S. Matiello, M. Sassi, F. Corsini, G. Griffini, M. Sommer, L. Beverina. ACS Macro Lett., 2020 , 9, 1167-1171.
[124] Synthesis and aggregation behavior of a glycolated naphthalene diimide bithiophene copolymer for application in low-level n-doped organic thermoelectrics
Y. Shin, H. Komber, D. Caiola, M. Cassinelli, H. Sun, D. Stegerer, M. Schreiter, K. Horatz, F. Lissel, X. Jiao, C. McNeill, S. Cimo, C. Bertarelli, S. Fabiano, M. Caironi, M. Sommer, Macromolecules, 2020 , 53 (13), 5158-5168.
[123] Radical Anion Yield, Stability and Electrical Conductivity of Naphthalene Diimide Copolymers n Doped with Tertiary Amines
S. Schmidt, M. Hönig, Y. Shin, M. Cassinelli, A. Perinot, M. Caironi, X. Jiao, C.R. McNeill, D. Fazzi, T. Biskup, M. Sommer, Appl. Poly. Mater., 2020,2 (5), 1954–1963.
[122] Glass transition temperature from the chemical structure of conjugated polymers
R. Xie, A. R. Weisen, Y. Lee, M. A. Aplan, A. M. Fenton, A. E. Masucci, F. Kempe, M. Sommer, C. W. Pester, R. H. Colby, et al., Nat. Commun., 2020 , 11, 1–8.
[121] Modification of the Termoset Injection Moulding Process for Shaping to Increase the Fibre Length in C/C-SiC Ceramics Produced by the LSI Process
J. Stiller, D. Nestler, E. Päßler, F. Kempe, H. Wätzig, A. Husam, L. Kroll, M. Sommer, G. Wagner, Key Eng. Mater., 2019, 809, 153-160.
[120] Two Competing Acceptors: Electronic Structure of PNDITBT Probed by Time-Resolved Electron Paramagnetic Resonance Spectroscopy.
C. Matt, K. Stry, R. Matsidik, M. Sommer, T. Biskup, J. Chem. Phys., 2019, 151, 234901.
[119] Liquid-Crystalline Order and Film Thickness Determine the Semicrystalline Morphology in Diketopyrrolopyrrole-Based Copolymers.
S. Vazirieh Lenjani, M. Zerson,Q. Wang, M. Sommer, R. Magerle, ACS Macro Lett., 2019, 8 (12), 1611-1616.
[118] Indacenodithiophene homopolymers via direct arylation: direct polycondensation versus polymer analogous reaction pathways.
D. Adamczak, H. Komber, A. Illy, A. Scaccabarozzi, M. Caironi, M. Sommer, Macromolecules, 2019, 52 (19), 7251-7259.
[117] Homocoupling Defects in a Conjugated Polymer Limit Exciton Diffusion
M. Streiter, F. Meier, D. Beer, C. Lienert, F. Lombeck, M. Sommer and C. Deibel, Adv. Funct. Mater., 2019, 29 (46), 1903936.
DOI: 10.1002/adfm.201903936
[116] Microstructural control suppresses thermal activation of electron transport at room temperature in polymer transistors.
A. Luzio, F. Nübling, J. Martin, D. Fazzi, P. Selter, E. Gann, C. R. McNeill, M. Brinkmann, M. R. Hansen, N. Stingelin, M. Sommer, M. Caironi, Nat. Commun., 2019, 10 (1), 1-13.
DOI: 10.1038/s41467-019-11125-9

Highlighted as University press release (german)
[115] Side-Chain Engineering of Conjugated Polymers: Distinguishing Its Impact on Film Morphology and Electronic Structure.
D. L. Meyer, N. Schmidt-Meinzer, C. Matt, S. Rein, F. Lombeck, M. Sommer, T. Biskup, J. Phys. Chem., 2019,123, 33, 20071-20083.
DOI: 10.1021/acs.jpcc.9b02835
[114] Impact of competing crystallization processes on the structure of all-conjugated donor-acceptor block copolymers P3HT-b-PNDIT2 in highly oriented thin films.
V. Untilova, F. Nübling, L. Biniek, M. Sommer, M. Brinkmann ACS Appl. Polym. Mater., 2019, 1(7), 1660-1671.
DOI: 10.1021/acsapm.9b00220
[113] Preparation of Naphthalene Dianhydride Bithiophene Copolymers by Direct Arylation Polycondensation and the Latent Pigment Approach.
A. Sanzone, S. Cimò, S. Mattiello, R. Ruffo, I. Facchinetti, G. Bonaccini, M. Caironi, M. Sassi, M. Sommer, L. Beverina, ChemPlusChem,2019, 84 (9), 1346-1352.
DOI: 10.1002/cplu.201900210
Highlighted as Frontcover
[112] Impact of Side Chains of Conjugated Polymers on Electronic Structure: A Case Study.
C. Matt, F. Lombeck, M. Sommer, T. Biskup, Polymers, 2019, 11 (5), 870.
DOI: 10.3390/polym11050870
[111] Effect of Thionation on the Performance of PNDIT2-Based Polymer Solar Cells.
K. Rundel, Y. Shin, A. Chesman, A. Liu, A. Welford, L. Thomsen, M. Sommer, C. McNeill, J. Phys. Chem. C, 2019, 123 (19), 12062-12072.
DOI: 10.1021/acs.jpcc.8b11935
[110] Controlling intermolecular redox-doping of naphthalene diimides.
S. Schmidt, T. Biskup, X. Jiao, C. McNeill, M. Sommer, J. Mater. Chem. C., 2019, 7, 4466-4474.
DOI: 10.1039/C9TC00721K
[109] Double Doping of Conjugated Polymers with Monomer Molecular Dopants.
D. Kiefer, R. Kroon, A. Hofmann, H. Sun, X. Liu, A. Giovannitti, D. Stegerer, A. Cano, J. Hynynen, L. Yu, Y. Zhang, D. Nai, T. Harrelson, M. Sommer, A. Moulé, M. Kemerink, S. Marder, I. McCulloch, M. Fahlman, S. Fabiano, and C. Müller, Nat. Mater., 2019, 18, 149–155.
DOI: 10.1038/s41563-018-0263-6
[108] New Materials for Organic Electronics: Improved Properties to Tackle Application Challenges.
M. Caironi, C. Müller, E. von Hauff, M. Sommer, Adv. Electron. Mater., 2018, 4 (10), 1800621.
DOI: 10.1002/aelm.201800621
[107] Block junction-functionalized all-conjugated donor-acceptor block copolymers.
F. Nübling, T. Hopper, B. Kuei, H. Komber, V. Untilova, S. Schmidt, M. Brinkmann, E. Gomez, A. Bakulin, M. Sommer, ACS Appl. Mater. Interfaces, 2018, 11 (1), 1143-1155.
DOI: 10.1021/acsami.8b18608
[106] Probing Exciton Delocalisation in Organic Semiconductors: Insight from Time-Resolved Electron Paramagnetic Resonance and Magnetophotoselection Experiments.
D. Meyer, R. Matsidik, D. Fazzi, M. Sommer, T. Biskup, J. Phys. Chem. Lett., 2018, 9 (24), 7026-7031.
DOI: 10.1021/acs.jpclett.8b03196
[105] Different Routes Towards Triplet States in Organic Semiconductors: Direct S0→T Excitation Probed by Time-Resolved EPR Spectroscopy.
C. Matt, D. L. Meyer, F. Lombeck, M. Sommer, T. Biskup, Mol. Phys., 2018, 122, 27850–27865.
DOI: 10.1080/00268976.2018.1523479
[104] Drastic Improvement of Air Stability in an n-type Doped Naphtalene-diimide Polymer by Thionation.
D. Nava, Y. Shin, M. Massetti, X. Jiao, T. Biskup, J. Sangarashettyhalli, C. Madan, A. Calloni, L. Duò, G. Lanzani, C. McNeill, M. Sommer, M. Caironi, ACS Appl. Energy Mater., 2018, 1 (9), 4626-4634.
DOI: 10.1021/acsaem.8b00777
[103] A defect-free naphthalene diimide bithiazole copolymer via regio-selective direct arylation polycondensation.
R. Matsidik, M. Giorgio, A. Luzio, M. Caironi, H. Komber, M. Sommer, Eur. J. Org. Chem., 2018, 44, 6121-6126.
DOI: 10.1002/ejoc.201800821
[102] Highly sensitive, anisotropic and reversible stress/strain-sensors from mechanochromic nanofiber composites.
M. Raisch, D. Genovese, N. Zaccheroni, S. Schmidt, M. L. Focarete, M. Sommer, C. Gualandi, Adv. Mater., 2018, 30 (39), 1802813.
DOI: 10.1002/adma.201802813
[101] N-alkyl substituted 1H-benzimidazoles as improved n-type dopants of a naphthalene-diimide based copolymer.
B. Saglio, M. Mura, M. Massetti, F. Scuratti, X. Jiao, C. R. McNeill, M. Sommer, A. Famulari, G. Lanzani, M. Caironi and C. Bertarelli, J. Mater. Chem. A, 2018, 6, 15294-15302.
DOI: 10.1039/C8TA04901G
[100] Balancing steric and electronic effects of bidentate, mixed P,N ligands to control Kumada catalyst transfer polycondensation of a sterically hindered thiophene.
S. Hameury, C. Gourlaouen, M. Sommer, Polym. Chem., 2018, 9, 3398-3405.
DOI: 10.1039/C8PY00452H
[99] TBT entirely dominates the electronic structure of the conjugated copolymer PCDTBT: Insights from time-resolved electron paramagnetic resonance spectroscopy.
C. Matt, D. Meyer, F. Lombeck, M. Sommer, T. Biskup, Macromolecules, 2018, 51 (11), 4341-4349.
DOI: 10.1021/acs.macromol.8b00791
[98] In-situ synthesis of ternary block copolymer / homopolymer blends for organic photovoltaics.
F. Nübling, D. Yang, P. Muller-Buschbaum, M. Brinkmann, M. Sommer, ACS Appl. Mater. Interfaces, 2018, 10 (21), 18149–18160.
DOI: 10.1021/acsami.8b04753
[97] Trendbericht Makromolekulare Chemie 2017: Chemie.
M. Sommer, F. R. Wurm, Nachr. Chem., 2018, 66 (3), 327-334.
DOI: 10.1002/nadc.20184071838
[96] Direct observation of backbone planarization via side-chain alignment in single bulky-substituted polythiophenes.
D. Raithel, L. Simine, S. Pickel, K. Schötz, F. Panzer, S. Baderschneider, D. Schiefer, R. Lohwasser, J. Köhler, M. Thelakkat, M. Sommer, A. Köhler, P. J. Rossky and R. Hildner, PNAS, 2018, 201719303.
DOI: 10.1073/pnas.1719303115
[95] Improving miscibility of a naphthalene diimide-bithiophene copolymer with n-type dopants through the incorporation of “kinked” monomers.
Y. Shin, M. Massetti, H. Komber, D. Nava, G. Lanzani, M. Caironi, M. Sommer, Adv. Electron. Mater., 2018, 1700581.
DOI: 10.1002/aelm.201700581
[94] Tuning the molecular weight of the electron accepting polymer in all-polymer solar cells: Impact on morphology and charge generation.
K. D. Deshmukh, R. Matsidik, S. K. Prasad, A. C. Y. Liu, E. Gann, L. Thomsen, J. M. Hodgkiss, M. Sommer, C. R. McNeill, Adv. Funct. Mater., 2018, 1707185.
DOI: 10.1002/adfm.201707185
[93] Regioregular polymer analogous thionation of naphthalene diimide-bithiophene copolymers.
Y. Shin, A. Welford, H. Komber, R. Matsidik, T. Thurn-Albrecht, C. McNeill, M. Sommer, Macromolecules, 2018, 51 (3), 984-991.
DOI: 10.1021/acs.macromol.7b02355
[92] Electronic structure trumps planarity: Unexpected narrow exciton delocalisation in PNDIT2 revealed by time-resolved EPR spectroscopy.
D. Meyer, R. Matsidik, M. Sommer, T. Biskup, Adv. Electron. Mater., 2018, 1700385.
DOI: 10.1002/aelm.201700385
[91] Graphene exfoliation in the presence of semiconducting polymers for improved film homogeneity and electrical performances.
T. Leydecker, M. Eredia, F. Liscio, S. Milita, G. Melinte, O. Ersen, M. Sommer, A. Ciesielski, P. Samorì, Carbon, 2018, 130, 495-502.
DOI: 10.1016/j.carbon.2018.01.042
[90] A Simply Synthesized, Tough Polyarylene with Transient Mechanochromic Response.
F. Kempe, O. Brügner, H. Buchheit, S. N. Momm, F. Riehle, S. Hameury, M. Walter, M. Sommer, Angew. Chem. Int. Ed., 2018, 57 (4), 997-1000.
DOI: 10.1002/anie.201709142
Highlighted in ChemistryViews
[89] Solvent-mediated aggregate formation of PNDIT2: Decreasing the available conformational subspace by introducing locally highly ordered domains.
D. Meyer, R. Matsidik, S. Huettner, M. Sommer, T. Biskup, PCCP, 2018, 20 (4), 2716-2723.
DOI: 10.1039/C7CP07725D
[88] Impact of Acceptor Fluorination on the Performance of All-Polymer Solar Cells.
K. Deshmukh, R. Matsidik, S. Prasad, N. Chandrasekaran, A. Welford, L. Connal, A. Liu, E. Gann, L. Thomsen, D. Kabra, J. Hodgkiss, M. Sommer, C. McNeill, ACS Applied Materials & Interfaces, 2018, 10 (1), 955-969.
DOI: 10.1021/acsami.7b14582
[87] Signatures of Melting and Recrystallization of a Bulky Substituted Poly(thiophene) Identified by Optical Spectroscopy.
F. Keheze, D. Raithel, T. Wu, D. Schiefer, M. Sommer, R. Hildner, G. Reiter, Macromolecules, 2017, 50 (17), 6829-6839.
DOI: 10.1021/acs.macromol.7b01080
[86] Alkyl-substituted spiropyrans: Electronic effects, model compounds and synthesis of aliphatic main-chain copolymers.
S. Schmidt, F. Kempe, O. Brügner, M. Walter, M. Sommer, Polym. Chem., 2017, 8, 5407-5414.
DOI: 10.1039/C7PY00987A
[85] To branch or not to branch: C-H selectivity of thiophene-based donor-acceptor-donor monomers for use in direct arylation polycondensation exemplified by PCDTBT.
F. Lombeck, F. Marx, K. Strassel, S. Kunz, C. Lienert, H. Komber, R. Friend, M. Sommer, Polym. Chem., 2017, 8, 4738-4745.
DOI: 10.1039/C7PY00879A
[84] All-conjugated P3HT donor PCDTBT acceptor graft copolymers via a grafting through approach.
D. Schiefer, R. Hanselmann, M. Sommer, Polym. Chem., 2017, 8, 4368-4377.
DOI: 10.1039/C7PY00612H
[83] Benzoyl-side chains push the open-circuit voltage of PCDTBT/PCBM solar cells beyond 1 Volt.
F. Lombeck, S. Müllers, H. Komber, S. M. Menke, A. J. Pearson, P. J. Conaghan, C. R. McNeill, R. H. Friend, M. Sommer, Organic Electronics, 2017, 49, 142-151.
DOI: 10.1016/j.orgel.2017.06.055
[82] Highly Planarized Naphthalene Diimide–Bifuran Copolymers with Unexpected Charge Transport Performance.
R. Matsidik, A. Luzio, Ö. Askin, D. Fazzi, A. Sepe, U. Steiner, H. Komber, M. Caironi, M. Sommer, Chem. Mater., 2017, 29 (13), 5473–5483.
DOI: 10.1021/acs.chemmater.6b05313
[81] Expanding the scope of electron deficient C-H building blocks: Direct arylation of pyromellitic acid diimide.
S. Hameury, S. Kunz, M. Sommer, ACS Omega, 2017, 2 (6), 2483–2488.
DOI: 10.1021/acsomega.7b00420
[80] Polar Side Chains Enhance Processability, Electrical Conductivity, and Thermal Stability of a Molecularly p-Doped Polythiophene.
R. Kroon, D. Kiefer, D. Stegerer, L. Yu, M. Sommer, C. Müller, Adv. Mater. 2017, 1700930.
DOI: 10.1002/adma.201700930
[79] Direct S0→T Excitation of a Conjugated Polymer Repeat Unit: Unusual Spin-Forbidden Transitions Probed by Time-Resolved Electron Paramagnetic Resonance Spectroscopy.
D. L. Meyer, F. Lombeck, S. Huettner, M. Sommer, and T. Biskup, J. Phys. Chem. Lett. 2017, 8 (7), 1677-1682.
DOI: 10.1021/acs.jpclett.7b00644
[78] Substituent correlations characterized by Hammett constants in the spiropyran-merocyanine transition.
O. Brügner, T. Reichenbach, M. Sommer, M. Walter, J. Phys. Chem. A. 2017, 121 (13), 2683-2687.
DOI: 10.1021/acs.jpca.7b01248
[77] All-conjugated, all-crystalline donor acceptor block copolymers P3HT-b-PNDIT2 via direct arylation polycondensation.
F. Nübling, H. Komber, M. Sommer, Macromolecules 2017, 50 (5), 1909–1918.
DOI: 10.1021/acs.macromol.7b00251
[76] Trendbericht Makromolekulare Chemie 2016.
M. Sommer, F. Wurm, Nachrichten aus der Chemie 2017, 65, 348-358.
DOI: 10.1002/nadc.20174057501
[75] Unconventional Molecular Weight Dependence of Charge Transport in the High Mobility n-type Semiconducting Polymer P(NDI2OD-T2).
M. M. Nahid, R. Matsidik, A. Welford, E. Gann, L. Thomsen, M. Sommer, C. R. McNeill, Advanced Functional Materials 2017, 27, 1616–3028.
DOI: 10.1002/adfm.201604744
[74] PCDTBT: From Polymer Photovoltaics to Light-Emitting Diodes by Side-Chain-Controlled Luminescence.
F. Lombeck, D. Di, L. Yang, L. Meraldi, S. Athanasopoulos, D. Credgington, M. Sommer, R. H. Friend, Macromolecules 2016, 49, 9382–9387.
DOI: 10.1021/acs.macromol.6b02216
[73] Effects of PNDIT2 end groups on aggregation, thin film structure, alignment and electron transport in field-effect transistors.
R. Matsidik, A. Luzio, S. Hameury, H. Komber, C. R. McNeill, M. Caironi, M. Sommer, J. Mater. Chem. C 2016, 4, 10371–10380.
DOI: 10.1039/C6TC03804B
[72] On the Effect of Prevalent Carbazole Homocoupling Defects on the Photovoltaic Performance of PCDTBT:PC71BM Solar Cells.
F. Lombeck, H. Komber, D. Fazzi, D. Nava, J. Kuhlmann, D. Stegerer, K. Strassel, J. Brandt, A. D. de Zerio Mendaza, C. Müller, W. Thiel, M. Caironi, R. Friend, M. Sommer, Adv. Energy Mater. 2016, 6, 1601232.
DOI: 10.1002/aenm.201601232
[71] Poly(3-(2,5-dioctylphenyl)thiophene) Synthesized by Direct Arylation Polycondensation: End Groups, Defects, and Crystallinity.
D. Schiefer, H. Komber, F. Mugwanga Keheze, S. Kunz, R. Hanselmann, G. Reiter, M. Sommer, Macromolecules 2016, 49, 7230–7237.
DOI: 10.1021/acs.macromol.6b01795
[70] Mixed side-chain geometries for aggregation control of poly(fluorene-alt-bithiophene) and their effects on photophysics and charge transport.
O. Kettner, A. Pein, G. Trimmel, P. Christian, C. Röthel, I. Salzmann, R. Resel, G. Lakhwani, F. Lombeck, M. Sommer, B. Friedel, Synthetic Metals 2016, 220, 162–173.
DOI: 10.1016/j.synthmet.2016.06.010
[69] Compatibilization of All-Conjugated Polymer Blends for Organic Photovoltaics.
F. Lombeck, A. Sepe, R. Thomann, R. H. Friend, M. Sommer, ACS Nano 2016, 10, 8087–8096.
DOI: 10.1021/acsnano.6b04244
[68] Highly Oriented and Crystalline Films of a Phenyl-Substituted Polythiophene Prepared by Epitaxy: Structural Model and Influence of Molecular Weight.
A. Hamidi-Sakr, D. Schiefer, S. Covindarassou, L. Biniek, M. Sommer, M. Brinkmann, Macromolecules 2016, 49, 3452–3462.
DOI: 10.1021/acs.macromol.6b00495
[67] Rational Use of Aromatic Solvents for Direct Arylation Polycondensation: C–H Reactivity versus Solvent Quality.
R. Matsidik, H. Komber, M. Sommer, ACS Macro Lett. 2015, 4, 1346–1350.
DOI: 10.1021/acsmacrolett.5b00783
[66] Enhancing Phase Separation and Photovoltaic Performance of All-Conjugated Donor–Acceptor Block Copolymers with Semifluorinated Alkyl Side Chains.
F. Lombeck, H. Komber, A. Sepe, R. H. Friend, M. Sommer, Macromolecules 2015, 48, 7851–7860.
DOI: 10.1021/acs.macromol.5b01845
[65] Defect Analysis of High Electron Mobility Diketopyrrolopyrrole Copolymers Made by Direct Arylation Polycondensation.
S. Broll, F. Nübling, A. Luzio, D. Lentzas, H. Komber, M. Caironi, M. Sommer, Macromolecules 2015, 48, 7481–7488.
DOI: 10.1021/acs.macromol.5b01843
[64] Ordering of PCDTBT Revealed by Time-Resolved Electron Paramagnetic Resonance Spectroscopy of Its Triplet Excitons.
T. Biskup, M. Sommer, S. Rein, D. L. Meyer, M. Kohlstädt, U. Würfel, S. Weber, Angew. Chem. Int. Ed. 2015, 54, 7707–7710.
DOI: 10.1002/anie.201502241
[63] Defect-free Naphthalene Diimide Bithiophene Copolymers with Controlled Molar Mass and High Performance via Direct Arylation Polycondensation.
R. Matsidik, H. Komber, A. Luzio, M. Caironi, M. Sommer, J. Am. Chem. Soc. 2015, 137, 6705–6711.
DOI: 10.1021/jacs.5b03355
[62] High molecular weight mechanochromic spiropyran main chain copolymers via reproducible microwave-assisted Suzuki polycondensation.
L. Metzler, T. Reichenbach, O. Brügner, H. Komber, F. Lombeck, S. Müllers, R. Hanselmann, H. Hillebrecht, M. Walter, M. Sommer, Polym. Chem. 2015, 6, 3694–3707.
DOI: 10.1039/C5PY00141B
[61] Spectroscopic Signature of Two Distinct H-Aggregate Species in Poly(3-hexylthiophene).
F. Panzer, M. Sommer, H. Bässler, M. Thelakkat, A. Köhler, Macromolecules 2015, 48, 1543–1553.
DOI: 10.1021/acs.macromol.5b00129
[60] Structural Characterization of Highly Oriented Naphthalene-Diimide-Bithiophene Copolymer Films via Vibrational Spectroscopy.
E. Giussani, L. Brambilla, D. Fazzi, M. Sommer, N. Kayunkid, M. Brinkmann, C. Castiglioni, J. Phys. Chem. B 2015, 119, 2062–2073.
DOI: 10.1021/jp511451s
[59] C–H Arylation of Unsubstituted Furan and Thiophene with Acceptor Bromides: Access to Donor–Acceptor–Donor-Type Building Blocks for Organic Electronics.
R. Matsidik, J. Martin, S. Schmidt, J. Obermayer, F. Lombeck, F. Nübling, H. Komber, D. Fazzi, M. Sommer, J. Org. Chem. 2015, 80, 980–987.
DOI: 10.1021/jo502432e
[58] Simple Synthesis of P(Cbz-alt-TBT) and PCDTBT by Combining Direct Arylation with Suzuki Polycondensation of Heteroaryl Chlorides.
F. Lombeck, R. Matsidik, H. Komber, M. Sommer, Macromol. Rapid Commun. 2015, 36, 231–237.
DOI: 10.1002/marc.201400437
[57] Structure Influence on Charge Transport in Naphthalenediimide–Thiophene Copolymers.
M. M. Szumilo, E. H. Gann, C. R. McNeill, V. Lemaur, Y. Oliver, L. Thomsen, Y. Vaynzof, M. Sommer, H. Sirringhaus, Chem. Mater. 2014, 26, 6796–6804.
DOI: 10.1021/cm5033578
[56] Structure–Function Relationships of High-Electron Mobility Naphthalene Diimide Copolymers Prepared Via Direct Arylation.
A. Luzio, D. Fazzi, F. Nübling, R. Matsidik, A. Straub, H. Komber, E. Giussani, S. E. Watkins, M. Barbatti, W. Thiel, E. Gann, L. Thomsen, C. R. McNeill, M. Caironi, M. Sommer, Chem. Mater. 2014, 26, 6233–6240.
DOI: 10.1021/cm503033j
[55] Anisotropic Photophysical Properties of Highly Aligned Crystalline Structures of a Bulky Substituted Poly(thiophene).
Y. Wang, B. Heck, D. Schiefer, J. O. Agumba, M. Sommer, T. Wen, G. Reiter, ACS Macro Lett. 2014, 3, 881–885.
DOI: 10.1021/mz500411c
[54] Identifying Homocouplings as Critical Side Reactions in Direct Arylation Polycondensation.
F. Lombeck, H. Komber, S. I. Gorelsky, M. Sommer, ACS Macro Lett. 2014, 3, 819–823.
DOI: 10.1021/mz5004147
[53] Nickel Catalyst with a Hybrid P, N Ligand for Kumada Catalyst Transfer Polycondensation of Sterically Hindered Thiophenes.
D. Schiefer, T. Wen, Y. Wang, P. Goursot, H. Komber, R. Hanselmann, P. Braunstein, G. Reiter, M. Sommer, ACS Macro Lett. 2014, 3, 617–621.
DOI: 10.1021/mz500282j
[52] Near-edge X-ray absorption fine-structure spectroscopy of naphthalene diimide-thiophene co-polymers.
E. Gann, C. R. McNeill, M. M. Szumilo, H. Sirringhaus, M. Sommer, S. Maniam, J. langford, L. Thomsen, The Journal of Chemical Physics 2014, 140, 164710.
DOI: 10.1063/1.4871463
[51] Structure formation in P3HT/F8TBT blends.
A. Sepe, Z. Rong, M. Sommer, Y. Vaynzof, X. Sheng, P. Müller-Buschbaum, D.-M. Smilgies, Z.-K. Tan, L. Yang, R. H. Friend, U. Steiner, S. Hüttner, Energy Environ. Sci. 2014, 7, 1725–1736.
DOI: 10.1039/C3EE44125C
[50] Conjugated polymers based on naphthalene diimide for organic electronics.
M. Sommer, J. Mater. Chem. C 2014, 2, 3088-3098.
DOI: 10.1039/C3TC31755B
[49] Unravelling the conformations of di-(perylene bisimide acrylate) by combining time-resolved fluorescence-anisotropy experiments and molecular modelling.
F. Spreitler, M. Sommer, M. Hollfelder, M. Thelakkat, S. Gekle, J. Köhler, Physical Chemistry Chemical Physics 2014, 16, 25959–25968.
DOI: 10.1039/C4CP03064H
[48] Determination of the Crystallinity of Semicrystalline Poly(3-hexylthiophene) by Means of Wide-Angle X-ray Scattering.
J. Balko, R. H. Lohwasser, M. Sommer, M. Thelakkat, T. Thurn-Albrecht, Macromolecules 2013, 46, 9642–9651.
DOI: 10.1021/ma401946w
[47] Soluble and stable alternating main-chain merocyanine copolymers through quantitative spiropyran–merocyanine conversion.
H. Komber, S. Müllers, F. Lombeck, A. Held, M. Walter, M. Sommer, Polym. Chem. 2014, 5, 443–453.
DOI: 10.1039/C3PY00853C
[46] Avoiding Bias Effects in NMR Experiments for Heteronuclear Dipole–Dipole Coupling Determinations: Principles and Application to Organic Semiconductor Materials.
R. Kurz, M. F. Cobo, E. Ribeiro de Azevedo, M. Sommer, A. Wicklein, M. Thelakkat, G. Hempel, K. Saalwächter, ChemPhysChem 2013, 14, 3146–3155.
DOI: 10.1002/cphc.201300255
[45] Phase Separation in the Melt and Confined Crystallization as the Key to Well-Ordered Microphase Separated Donor–Acceptor Block Copolymers.
R. H. Lohwasser, G. Gupta, P. Kohn, M. Sommer, A. S. Lang, T. Thurn-Albrecht, M. Thelakkat, Macromolecules 2013, 46, 4403–4410.
DOI: 10.1021/ma3021147
[44] Crystallization-Induced 10-nm Structure Formation in P3HT/PCBM Blends.
P. Kohn, Z. Rong, K. H. Scherer, A. Sepe, M. Sommer, P. Müller-Buschbaum, R. H. Friend, U. Steiner, S. Hüttner, Macromolecules 2013, 46, 4002–4013.
DOI: 10.1021/ma400403c
[43] A photoswitchable poly(3-hexylthiophene).
P. Bauer, M. Sommer, J. Thurn, M. Pärs, J. Köhler, M. Thelakkat, Chem. Commun. 2013, 49, 4637–4639.
DOI: 10.1039/C3CC41765D
[42] Hierarchical Orientation of Crystallinity by Block-Copolymer Patterning and Alignment in an Electric Field.
P. Goldberg-Oppenheimer, D. Kabra, S. Vignolini, S. Hüttner, M. Sommer, K. Neumann, M. Thelakkat, U. Steiner, Chem. Mater. 2013, 25, 1063–1070.
DOI: 10.1021/cm3038075
[41] Control of Intrachain Charge Transfer in Model Systems for Block Copolymer Photovoltaic Materials.
K. Johnson, Y.-S. Huang, S. Huettner, M. Sommer, M. Brinkmann, R. Mulherin, D. Niedzialek, D. Beljonne, J. Clark, W. T. S. Huck, R. H. Friend, J. Am. Chem. Soc. 2013, 135, 5074–5083.
DOI: 10.1021/ja3121247
[40] Spiropyran Main-Chain Conjugated Polymers.
M. Sommer, H. Komber, Macromol. Rapid Commun. 2013, 34, 57–62.
DOI: 10.1002/marc.201200688
[39] Segregated versus Mixed Interchain Stacking in Highly Oriented Films of Naphthalene Diimide Bithiophene Copolymers.
M. Brinkmann, E. Gonthier, S. Bogen, K. Tremel, S. Ludwigs, M. Hufnagel, M. Sommer, ACS Nano 2012, 6, 10319–10326.
DOI: 10.1021/nn304213h
[38] Controllable Processes for Generating Large Single Crystals of Poly(3-hexylthiophene).
K. Rahimi, I. Botiz, N. Stingelin, N. Kayunkid, M. Sommer, F. P. V. Koch, H. Nguyen, O. Coulembier, P. Dubois, M. Brinkmann, G. Reiter, Angew. Chem. Int. Ed. 2012, 51, 11131–11135.
DOI: 10.1002/anie.201205653
[37] Fractionated Crystallization of Defect-Free Poly(3-hexylthiophene).
P. Kohn, S. Huettner, U. Steiner, M. Sommer, ACS Macro Lett. 2012, 1, 1170–1175.
DOI: 10.1021/mz3003769
[36] Localizing trapped charge carriers in NO2 sensors based on organic field-effect transistors.
E. Andringa, W. S. C. Roelofs, M. Sommer, M. Thelakkat, M. Kemerink, D. M. de Leeuw, Appl. Phys. Lett. 2012, 101, 153302.
DOI: 10.1063/1.4758697
[35] Morphology-Dependent Charge Photogeneration in Donor–Acceptor Block Copolymer Films Based on Poly(3-hexylthiophene)-block-Poly(perylene bisimide acrylate).
S. Huettner, J. M. Hodgkiss, M. Sommer, R. H. Friend, U. Steiner, M. Thelakkat, J. Phys. Chem. B 2012, 116, 10070–10078.
DOI: 10.1021/jp301966p
[34] Thermotropic Behavior, Packing, and Thin Film Structure of an Electron Accepting Side-Chain Polymer.
P. Kohn, L. Ghazaryan, G. Gupta, M. Sommer, A. Wicklein, M. Thelakkat, T. Thurn-Albrecht, Macromolecules 2012, 45, 5676–5683.
DOI: 10.1021/ma3010197
[33] Synthesis, Purification, and Characterization of Well-Defined All-Conjugated Diblock Copolymers PF8TBT-b-P3HT.
M. Sommer, H. Komber, S. Huettner, R. Mulherin, P. Kohn, N. C. Greenham, W. T. S. Huck, Macromolecules 2012, 45, 4142–4151.
DOI: 10.1021/ma300533k
[32] Conformational dynamics of di-(perylene bisimide acrylate) and its footprints in steady-state, time-resolved, and fluorescence-correlation spectroscopy.
F. Spreitler, M. Sommer, M. Thelakkat, J. Köhler, Phys. Chem. Chem. Phys. 2012, 14, 7971–7980.
DOI: 10.1039/C2CP40387K
[31] Control of aggregate formation in poly(3-hexylthiophene) by solvent, molecular weight, and synthetic method.
C. Scharsich, R. H. Lohwasser, M. Sommer, U. Asawapirom, U. Scherf, M. Thelakkat, D. Neher, A. Köhler, J. Polym. Sci. B Polym. Phys. 2012, 50, 442–453.
DOI: 10.1002/polb.23022
[30] On the Role of Single Regiodefects and Polydispersity in Regioregular Poly(3-hexylthiophene): Defect Distribution, Synthesis of Defect-Free Chains, and a Simple Model for the Determination of Crystallinity.
P. Kohn, S. Huettner, H. Komber, V. Senkovskyy, R. Tkachov, A. Kiriy, R. H. Friend, U. Steiner, W. T. S. Huck, J.-U. Sommer, M. Sommer, J. Am. Chem. Soc. 2012, 134, 4790–4805.
DOI: 10.1021/ja210871j
[29] Directed crystallization of poly(3-hexylthiophene) in micrometre channels under confinement and in electric fields.
F. S. U. Fischer, K. Tremel, M. Sommer, E. J. C. Crossland, S. Ludwigs, Nanoscale 2012, 4, 2138–2144.
DOI: 10.1039/C2NR12037B
[28] Solvent Additive Control of Morphology and Crystallization in Semiconducting Polymer Blends.
X. Liu, S. Huettner, Z. Rong, M. Sommer, R. H. Friend, Adv. Mater. 2012, 24, 669–674.
DOI: 10.1002/adma.201103097
[27] Chain-Growth Polymerization of Unusual Anion-Radical Monomers Based on Naphthalene Diimide: A New Route to Well-Defined n-Type Conjugated Copolymers.
V. Senkovskyy, R. Tkachov, H. Komber, M. Sommer, M. Heuken, B. Voit, W. T. S. Huck, V. Kataev, A. Petr, A. Kiriy, J. Am. Chem. Soc. 2011, 133, 19966–19970.
DOI: 10.1021/ja208710x
[26] Ring Walking versus Trapping of Nickel(0) during Kumada Catalyst Transfer Polycondensation Using Externally Initiated Electron-Accepting Thiophene–Benzothiadiazole–Thiophene Precursors.
H. Komber, V. Senkovskyy, R. Tkachov, K. Johnson, A. Kiriy, W. T. S. Huck, M. Sommer, Macromolecules 2011, 44, 9164–9172.
DOI: 10.1021/ma2018827
[25] Ternary Photovoltaic Blends Incorporating an All-Conjugated Donor–Acceptor Diblock Copolymer.
R. C. Mulherin, S. Jung, S. Huettner, K. Johnson, P. Kohn, M. Sommer, S. Allard, U. Scherf, N. C. Greenham, Nano Lett. 2011, 11, 4846–4851.
DOI: 10.1021/nl202691n
[24] Kumada Catalyst-Transfer Polycondensation: Mechanism, Opportunities, and Challenges.
A. Kiriy, V. Senkovskyy, M. Sommer, Macromol. Rapid Commun. 2011, 32, 1503-1517.
DOI: 10.1002/marc.201100316
[23] Template-Assisted Fabrication of Highly Ordered Interpenetrating Polymeric Donor/Acceptor Nanostructures for Photovoltaic Applications.
N. Haberkorn, S. Kim, K.-S. Kim, M. Sommer, M. Thelakkat, B.-H. Sohn, P. Theato, Macromol. Chem. Phys. 2011, 212, 2142–2150.
DOI: 10.1002/macp.201100269
[22] Morphology controlled open circuit voltage in polymer solar cells.
C. R. Singh, M. Sommer, M. Himmerlich, A. Wicklein, S. Krischok, M. Thelakkat, H. Hoppe, Phys. Status Solidi RRL 2011, 5, 247–249.
DOI: 10.1002/pssr.201105213
[21] Tunable Charge Transport Using Supramolecular Self-Assembly of Nanostructured Crystalline Block Copolymers.
S. Huettner, M. Sommer, J. Hodgkiss, P. Kohn, T. Thurn-Albrecht, R. H. Friend, U. Steiner, M. Thelakkat, ACS Nano 2011, 5, 3506–3515.
DOI: 10.1021/nn200647d
[20] Convenient Route To Initiate Kumada Catalyst-Transfer Polycondensation Using Ni(dppe)Cl2 or Ni(dppp)Cl2 and Sterically Hindered Grignard Compounds.
V. Senkovskyy, M. Sommer, R. Tkachov, H. Komber, W. T. S. Huck, A. Kiriy, Macromolecules 2010, 43, 10157–10161.
DOI: 10.1021/ma1024889
[19] Donor–acceptor block copolymers for photovoltaic applications.
M. Sommer, S. Huettner, M. Thelakkat, J. Mater. Chem. 2010, 20, 10788-10797.
DOI: 10.1039/C0JM00665C
[18] High Crystallinity and Nature of Crystal−Crystal Phase Transformations in Regioregular Poly(3-hexylthiophene).
O. F. Pascui, R. Lohwasser, M. Sommer, M. Thelakkat, T. Thurn-Albrecht, K. Saalwächter, Macromolecules 2010, 43, 9401–9410.
DOI: 10.1021/ma102205t
[17] NMRP versus “Click” Chemistry for the Synthesis of Semiconductor Polymers Carrying Pendant Perylene Bisimides.
A. S. Lang, A. Neubig, M. Sommer, M. Thelakkat, Macromolecules 2010, 43, 7001–7010.
DOI: 10.1021/ma100708h
[16] Temperature and Molecular Weight Dependent Hierarchical Equilibrium Structures in Semiconducting Poly(3-hexylthiophene).
Z. Wu, A. Petzold, T. Henze, T. Thurn-Albrecht, R. H. Lohwasser, M. Sommer, M. Thelakkat, Macromolecules 2010, 43, 4646–4653.
DOI: 10.1021/ma902566h
[15] Determination of charge carrier mobility of hole transporting polytriarylamine-based diodes.
E. M. Barea, G. Garcia-Belmonte, M. Sommer, S. Hüttner, H. J. Bolink, M. Thelakkat, Thin Solid Films 2010, 518, 3351–3354.
DOI: 10.1016/j.tsf.2009.10.003
[14] Organic field effect transistors from triarylamine side-chain polymers.
S. Hüttner, M. Sommer, U. Steiner, M. Thelakkat, Appl. Phys. Lett. 2010, 96, 73503.
DOI: 10.1063/1.3300464
[13] Donor–Acceptor Block Copolymers with Nanoscale Morphology for Photovoltaic Applications.
M. Sommer, S. Huettner, M. Thelakkat, Complex Macromolecular Systems II 2010, 228, 123-153.
DOI: 10.1007/12_2009_34
[12] Influence of molecular weight on the solar cell performance of double-crystalline donor-acceptor block copolymers.
M. Sommer, S. Hüttner, U. Steiner, M. Thelakkat, Appl. Phys. Lett. 2009, 95, 183308.
DOI: 10.1063/1.3257367
[11] Controlled solvent vapour annealing for polymer electronics.
S. Hüttner, M. Sommer, A. Chiche, G. Krausch, U. Steiner, M. Thelakkat, Soft Matter 2009, 5, 4206–4211.
DOI: 10.1039/B907147D
[10] Charge separation and recombination in self-organizing nanostructured donor–acceptor block copolymer films.
S. King, M. Sommer, S. Huettner, M. Thelakkat, S. A. Haque, J. Mater. Chem. 2009, 19, 5436–5441.
DOI: 10.1039/B905708K
[9] Semiconductor Dendritic-Linear Block Copolymers by Nitroxide Mediated Radical Polymerization.
A. S. Lang, F. R. Kogler, M. Sommer, U. Wiesner, M. Thelakkat, Macromol. Rapid Commun. 2009, 30, 1243–1248.
DOI: 10.1002/marc.200900203
[8] Self-Assembly of Semiconductor Organogelator Nanowires for Photoinduced Charge Separation.
A. Wicklein, S. Ghosh, M. Sommer, F. Würthner, M. Thelakkat, ACS Nano 2009, 3, 1107–1114.
DOI: 10.1021/nn9001165
[7] Crystalline–Crystalline Donor–Acceptor Block Copolymers.
M. Sommer, A. S. Lang, M. Thelakkat, Angewandte Chemie International Edition 2008, 47, 7901–7904.
DOI: 10.1002/anie.200802725
[6] Semiconductor Block Copolymer Nanocomposites with Lamellar Morphology via Self-Organization.
S. Maria, A. S. Susha, M. Sommer, D. V. Talapin, A. L. Rogach, M. Thelakkat, Macromolecules 2008, 41, 6081–6088.
DOI: 10.1021/ma8007459
[5] Electron-Conducting Block Copolymers: Morphological, Optical, and Electronic Properties.
M. Sommer, S. Hüttner, S. Wunder, M. Thelakkat, Adv. Mater. 2008, 20, 2523–2527.
DOI: 10.1002/adma.200703070
[4] n-type organic field effect transistors from perylene bisimide block copolymers and homopolymers.
S. Hüttner, M. Sommer, M. Thelakkat, Appl. Phys. Lett. 2008, 92, 93302.
DOI: 10.1063/1.2885712
[3] Conformation of Poly(methacrylic acid) Chains in Dilute Aqueous Solution.
L. Ruiz-Pérez, A. Pryke, M. Sommer, G. Battaglia, I. Soutar, L. Swanson, M. Geoghegan, Macromolecules 2008, 41, 2203–2211.
DOI: 10.1021/ma0709957
[2] Microphase-Separated Donor–Acceptor Diblock Copolymers: Influence of HOMO Energy Levels and Morphology on Polymer Solar Cells.
M. Sommer, S. M. Lindner, M. Thelakkat, Adv. Funct. Mater. 2007, 17, 1493–1500.
DOI: 10.1002/adfm.200600634
[1] Synthesis, characterization and application of donor-acceptor block copolymers in nanostructured bulk heterojunction solar cells.
M. Sommer, M. Thelakkat, The European Physical Journal - Applied Physics 2006, 36, 245–249.
DOI: 10.1051/epjap:2006141


Cover Articles

  • On the Effect of Prevalent Carbazole Homocoupling Defects on the Photovoltaic Performance of PCDTBT:PC71BM Solar Cells.

  • Preparation of Naphthalene Dianhydride Bithiophene Copolymers by Direct Arylation Polycondensation and the Latent Pigment Approach.


Reviews and book chapters

[7] Development of conjugated polymers for organic flexible electronics,
M. Sommer, in Organic Flexible Electronics (Eds.: P. Cosseddu, M. Caironi), Woodhead Publishing, 2021,
pp. 27–70.
[6] Trendbericht Makromolekulare Chemie 2017: Chemie
M. Sommer, F. R. Wurm, Nachr. Chem. 2018, 66 (3), 327-334.
DOI: 10.1002/nadc.20184071838
[5] Trendbericht Makromolekulare Chemie 2016.
M. Sommer, F. Wurm, Nachr. Chem. 2017, 65, 348–358.
DOI: 10.1002/nadc.20174057501
[4] Conjugated polymers based on naphthalene diimide for organic electronics.
M. Sommer, J. Mater. Chem. C 2014, 2, 3088–3098.
DOI: 10.1039/C3TC31755B
[3] Kumada Catalyst‐Transfer Polycondensation: Mechanism, Opportunities, and Challenges.
A. Kiriy, V. Senkovskyy, M. Sommer, Macromolecular Rapid Communications 2011, 32, 1503–1517.
DOI: 10.1002/marc.201100316
[2] Donor–acceptor block copolymers for photovoltaic applications.
M. Sommer, S. Huettner, M. Thelakkat, J. Mater. Chem. 2010, 20, 10788–10797.
DOI: 10.1039/C0JM00665C
[1] Donor–Acceptor Block Copolymers with Nanoscale Morphology for Photovoltaic Applications.
M. Sommer, S. Huettner, M. Thelakkat, Complex Macromolecular Systems II 2010, 228, 123–153.
DOI: 10.1007/12_2009_34