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.

CIMPS-QE/IPCE system

Fully integrated QE/IPCE workstation Zennium-pro/X workstation with PP211 light potentiostat, EPC42 TLS03 tunable light source: 365 nm – 1020 nm QE/IPCE software 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

The Zahner CIMPS-QE/IPCE measurement system has been designed to match the special demands of dynamic photo-electric investigations.

Photo-Electrochemical Methods

• 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

Electrochemical Methods

• 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
• Tafelscan
• Steady State Current/Voltage Curves
• Multi-Cell Current/Voltage Curves
• Corrosion / Polarisation Measurement
• Potentiometry
• Chronopotentiometry
• Chronoamperometry
• 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

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