Instrumentation
Processing and Screening
Glovebox System (P114a)
- 3-chamber glovebox system from GS with nitrogen atmosphere funded by DFG:
-
- preparation box with Spin Coater, hot plates
- transfer box with direct access to two evaporators Univex 350G from Leybold:
- Audi (thermal evaporation of organic semiconductors and metals)
- BMW ("beamer"; e-beam and thermal evaporation of metals)
- characterisation box with
- current-voltage measurements (SMU Keithley 236) with home-built multiplexer
- external quantum efficiency (Monochromator Bentham TM300, Spectroradiometer System Bentham 200Series, SR DSP830 lock-in amplifier)
- Korad power supply with LED
- Wavelabs LS-2 solar simulator
- scale
- separate processing glovebox from M.Braun for perovskite processing
-
- spin coater (Laurell WS–400)
- programmable hot stage
- analytical balance
Chem Labs (P105a and P106)
- 2 wet benches with ultrasonic bath etc.
- spin coater (Laurell WS–400)
- vacuum oven
- oxygen plasma cleaner Diener Zepto
- transmission spectrometer (Cary 100 UV-Vis)
- PL spectrometer (Cary Eclipse)
- contact angle measurements (DataPhysics OCA)
Microscopy (P104)
- Laser Scanning (Fluorescence) Microscope Zeiss LSM 510
Characterisation
Confocal Optical Spectroscopy (P105)
for temperature dependent single molecule spectroscopy, photoluminescence and photoluminescence excitation spectroscopy, and transient photoluminescence- lasers:
- supercontinuum laser NKT EXR–15 (450 - 2400 nm, up to 80 MHz) with SELECTplus AOTF filter system (wavelength selection from 450 to 1400 nm)
- laserdiode 465 nm Picoquant LDH-P-C–470 (up to 80 MHz)
- microscope cryostat Janis ST500 (7 K to 300 K) with Attocube x-y-z piezo stage (with mm range) inside
- objectives:
- Zeiss 63x LWD
- Thorlabs TL10X-2P - 10X, 0.5 NA, 7.77 mm WD
- Zeiss EC Epiplan/NEOFLUAR 100x 0.9 DIC
- integrating sphere with UV-VIS spectrograph
- TCSPC detectors:
- 2x MPD single photon avalanche detector (instrument response function of laser scan setup: 25 ps)
- 2x APDs Excellitas SPCM-AQRH (10 ns, ~ 400 - 1060 nm)
- Picoquant PMA hybrid 40 (120 ps, 300 - 720 nm)
- TCSPC module : Picoharp 300
(Quasi-)Steady State Current Spectroscopy (P104)
for temperature and illumination dependent current-voltage, external quantum efficiency, electroluminescence, and thermally stimulated currents measurements- closed cycle optical cryostate (CryoVac Spectro) with load-lock for direct transport of samples from glovebox without oxygen exposure
- QTH lamp (100W LOT-QD)
- ND filter wheels, range OD 0.0 ... 9.0 (Thorlabs FW102C+FW212C)
- double monochromator (LOT-QD DK242)
- lock-in amplifier Zurich Instruments MFLI with MF-MD and MF-F5M options
- lock-in amplifier SRS830DSP
- SMU Keithley 2635A
- spectrograph (Princeton Instruments SpectraPro (f=500mm)) with Si and InGaAs CCD (PyLoN-IR) arrays for visible to near infrared range
- Nd:YAG cw-Laser 5W, 532 nm (Spectra-Physics Millenia Pro)
- Keithley Picoamperemeter
Spider: Cryo Probe Station (P104)
for time dependent diode characterisation with ns-resolution and defect spectroscopy (Deep Level Transient Spectroscopy and Impedance Spectroscopy)- cryo probe station Janis ST500 with load-lock for direct transport of samples from glovebox without oxygen exposure
- impedance analyser Zurich Instruments MF-IA with MF-MD and MF-F5M
- waveform generator Keysight 33600A and WaveRunner 6 Zi Oscilloscope (1 GHz)
- Hübner Photonics diode laser Cobolt 06-MLD with fast analog modulation (1 MHz)
Fast I4 (IV/IMPS/IMVS/IS) Setup (P104)
- impedance analyser Zurich Instruments MF-IA with MF-MD and MF-F5M options
- lock-in amplifier Zurich Instruments MFLI (5 MHz)
- lock-in amplifier Zurich Insturment HF2LI (50 MHz)
- SMU Keithley 2634b dual-channel
- laser "Lasy": Omicron A350 diode laser with fast analog modulation (350 MHz)
- Linkam Cryostat
- double ND filter wheel (Standa)
Slow IV/IMPS/IMVS/IS Setup (P104)
- electrochemical workstation Zahner Zennium Pro with HiZ probe set
Pulsed Laser
- laser “Death Star”: Quanta-Ray INDI from Spectra-Physics, 65 mJ/pulse @ 355 nm, 20 Hz repetition rate and optical parametric oscillator BasiScan from Spectra-Physics covering visible and nearinfrared emission wavelengths. For Transient Current Spectroscopy (P105)
Ultrafast Spectroscopy (P105)
pulsed laser for optical and electro-optical pump-probe spectroscopy- laser "Femto": fs-laser Pharos 20 W (1020 nm, 290 fs) from Light Conversion with variable repetition rate, optimised for 50 kHz with 400 µJ pulse energy, down to single shot
- 50/50 beam splitter with optical parametric amplifiers (Orpheus and Lyra from Light Conversion)
- pump: variable wavelength from 315 nm to 2600 nm
- probe: variable wavelength from 315 nm to 16000 nm
- delay line for probe laser for time delays from 1 ps to 1,7 ns fast PL detector unit
- PL streak camera Hamamatsu C10910-05 for detection from 200 nm to 950 nm
- Syncroscan unit to automatically synchronise with the Pharos Laser for experiments with high repetition rates
- single sweep unit for single shot measurements
- monochromator with infrared detector (DoroTek) from 2000 nm to 14000 nm
- spectrograph with 2D InGaAs Infrared CCD (Hamamtasu G11608) from 500nm to 1700 nm
- This project is co-financed by the DFG and tax money on the basis of the budget resources approved by the members of the Landtag of Saxony
Transient Current Spectroscopy (P105)
for time-of-flight photocurrent and time delayed collection field measurements- laser excitation by fs laser "Femto" (see above) or ns laser "Death Star" (by hole-in-wall excitation from P104)
- closed cycle optical cryostate (CryoVac Spectro) with load-lock for direct transport of samples from glovebox without oxygen exposure
- custom-made preamplifier
- ND filter wheels, range OD 0.0 ... 9.0
- voltage pulse generator Keysight 81160A
- transimpedance amplifier FEMTO DHPCA–100
- 12 bit digitizer GaGe CS121G2, 500 MHz, 1 GSa/s