ZAHNER’s CIMPS-QE/IPCE system is a fully integrated and compact workstation for high-accuracy QE/IPCE measurements at the push of a button. Setting up the system is quick and easy, does not require either special knowledge or additional tools.
- Easy Mountable Optical Bench: The optical parts are arranged on an easy mountable optical bench.
- PTB-Traceable Detector: The integrated optical sensor (PTB-traceable, PTB is the European equivalent to NIST) is used to measure and feedback-control the light intensity exactly.
- Unique Feedback Control: This special and exclusive feature of all Zahner CIMPS systems grants you an accurate light intensity regardless of age and temperature of the LEDs. So there is no need for a reference cell and time consuming realignments of sample holders
- Tunable Optical Light Source: The unique and patented tunable light-source, TLS03, uses dedicated LEDs as well as a linear monochromator. Different from systems using Xenon lamps which require filters and a mechanical chopper, the concept of the TLS03 provides high light intensity along with a low spectral half-width and a multitude of features unique for this kind of instruments. Furthermore, LEDs can be modulated much faster than a mechanical chopper can do.
- No warm up time: Using state of the art LEDs not only increases power efficiency drastically, it also eliminates the long warm up times required by Xe-lamp based systems.
- Real Sine Wave Modulated: Unlike chopper-based systems, the TLS03 can be real sine wave modulated without harmonic distortion.
- Intelligent Control: With its intelligent control of a multitude of LEDs of different wavelengths, the TLS03 significantly outputs more power at a certain wavelength than a system consisting of a Xenon lamp plus monochromator can do. Additionally, a switchable white background illumination helps to speed up measurements at DSSC and enables investigations on tandem solar cells.
- Wavelength Range: The TLS03 is available with a standard wavelength range of 365 nm to 1020 nm and with an extended range of 295 nm to 1020 nm.
- Photo-ElChem standard methods: The CIMPS-QE/IPCE system also features the standard photo-electrochemical methods like CIMPS, CIMVS (controlled IMPS/IMVS) and fill factor
- EIS, CV or Polarization Measurements: All CIMPS systems are providing the full range of electrochemical methods like EIS, CV or Polarization Measurements.
- Expandability: CIMPS QE/IPCE system can be expanded by a multitude of options to provide special methods like experiments on absorption/transmission (CIMPS-abs), light emission (CIMPS-emit), fast intensity transients (CIMPS-fit) and dynamic transmittance/reflectance (CIMPS-dtr).
- Photo-Electrochemical Cells: Two versions of photo-electrochemical cell kits (PECC-1 and PECC-2) are optimal suited for holding and contacting your sample perfectly.
- NIST-Traceable Sensor: A NIST-traceable sensor (SEL033) allows you to calibrate your system at any time in your lab.
- Software: The CIMPS-QE/IPCE software is easy to use by controlling all components of the CIMPS-QE/IPCE system automatically and by reducing the measurements to the push of a button.
- Fully integrated QE/IPCE workstation
- Zennium-pro/X workstation with PP211 light potentiostat, EPC42
- TLS03 tunable light source: 365 nm – 1020 nm
- CIMPS software (CIMPS/IMPS, CIMVS/IMVS, fill factor, max. power, etc.)
- Thales software (EIS, CV, I/E, Polarisation, etc.)
- Expandable with CIMPS options
Benefits of TLS03 Compared to Xe-Lamp-Monochromator-Chopper Arrangements
- easy light weigthed "in a box"
- high power efficiency
- no warm up time
- higher useable light intensity
- higher modulation frequency
- real sine-wave modulation without harmonic distortion
- switchable background illumination
- PTB traceable sensor integrated
- reference cell not necessary
- no sample repositioning
Software and Methods
The Zahner CIMPS-QE/IPCE measurement system has been designed to match the special demands of dynamic photo-electric investigations.
- quantum efficiency (QE)
- incident photon conversion efficiency (IPCE)
- photocurrent vs. wavelength (PCS)
- SC fill-factor efficency
- Maximum power
- Intensity modulated photocurrent spectroscopy (IMPS)
- Controlled IMPS (CIMPS)
- Intensity modulated photovoltage spectroscopy (IMVS)
- Controlled IMVS (CIMVS)
- Charge extraction after N. W. Duffy, L. M. Peter et. al.
- Light transient measurements
- Time domain measurements
- DC vs. intensity transfer functions
- Chopped light voltammetry
- Testsampling Online Display and Logging
- Electrochemical Impedance Spectroscopy
- EIS Series Measurements vs. Parameters
- Impedance Network Analysis, Simulation & Fitting
- Impedance/Parameter, Capacity/Voltage Curves
- AC Voltammetry
- Cyclic Voltammetry
- Linear Sweep Voltammetry
- Triangular Wave Voltammetry
- Cyclic Triangular Wave Voltammetry
- Chronoamperometry With Multiple Triangular Potential Sweeps
- Stationary Electrode Voltammetry
- Chronoamperometry With Linear Potential Sweep
- Steady State Current/Voltage Curves
- Multi-Cell Current/Voltage Curves
- Corrosion / Polarisation Measurement
- Pulse Plating
- Universal Current/Potential/Time Curves
- Time Domain Controlled Measurements
- Tast Polarography
- Differential Pulse Polarography
- Differential Pulse Voltammetry
- Stripping Voltammetry
- Standard Addition Measurement & Analysis
- Universal Measurement Data Acquisition & Control
- Universal Frequency Response Analysis
Quantum Efficiency / Incident Photon Conversion Efficiency
Measurement, Analysis, Simulation and Fit of CIMPS/CIMVS Spectra
More than IMPS...