CIMPS - High level Potentiostat and Galvanostat in photovoltaic/photoelectrochemical application
photovoltaic/photoelectrochemical system from ZahnerZahner's CIMPS is a highly dynamic LED-based system with an active light feedback loop that ensures a controlled and constant light intensity during the photoelectrochemical or photovoltaic measurements. Fast light sources enable dynamic photoelectrochemical measurements like IMPS/IMVS. The robust control of light intensity allows accurate IMPS/IMVS measurements, giving the system its iconic name "controlled intensity-modulated photo spectroscopy (CIMPS)".
- Intensity modulated photocurrent spectroscopy (IMPS)
- Intensity modulated photovoltage spectroscopy (IMVS)
- Light transient measurement
- Chopped light voltammetry
Further information
Extend your CIMPS workstation for several photoelectrochemical applications, e.g., spectral resolved emission, transmittance and/or absorbance measurements.
- CIMPS-EMIT: CIMPS-EMIT allows integral and spectral resolved light emission measurements and can be used to characterize electroluminescent processes. For integral emission measurements, a NIST traceable calibrated photodetector is used whereas for spectral resolved measurements a UV-VIS-NIR spectrometer is used.
- CIMPS-ABS: CIMPS-ABS allows spectral resolved transmittance / absorbance measurements to characterize electro-chromic processes. It can be used with an LED-emitter or tungsten lamp. The transmittance / absorbance spectrum can be measured for different bias voltages or currents, time, or any other control parameter like temperature, pH, or concentration etc.
- CIMPS-PCS: CIMPS pcs allows "quantum efficiency" (QE) or "incident photon to current efficiency (IPCE)" measurements for the characterization of photoelectrodes or solar cells. The CIMPS pcs does not include a mechanical chopper and the IPCE measurements are not carried out via noise-prone Lock-In techniques but are carried out via intensity-modulated photocurrent spectroscopy. The LEDs based tuneable light source (TLS) used in CIMPS pcs is available for a wide wavelength range (with and without UV extension). A feedback sensor is incorporated in the TLS which ensures illumination with the correct light intensity.
An additional constant white background light is also incorporated in the TLS which allows IPCE measurements for the solar cells with high light intensity threshold for photocurrent. The effect of the constant white light is removed from the IPCE measurements.The CIMPS-IPCE can be used for all standard electrochemical or photoelectrochemical measurements which are possible with the CIMPS.
- CIMPS-FIT: CIMPS fit allows fast light intensity transient measurements to investigate the fast kinetics in organic, dye-sensitized, monolithic solar cells and photoelectrodes. With CIMPS fit, charge migration and diffusion time constants can be measured with a resolution of 50 ns.
CIMPS fit uses Zahner's TR8M addon card for transient measurements. The CIMPS fit can be used with the monochromatic LEDs from the CIMPS system or the TLS from CIMPS pcs. With monochromatic LED a time resolution down to 50 ns whereas, with TLS, a time resolution down to 100 ns is possible.
fit upgrade contains
- CIMPS-MDTR/OIS: In CIMPS mdtr/ois, mdtr stands for "Multi-spectral Dynamic TRanmittance" and ois stands for "Optical Impedance Spectroscopy". Like in EIS, in CIMPS mdtr/ois a small voltage or current perturbation is applied and a corresponding change in the optical properties is measured. For example, in a smart window, applying voltage may change its transparency. With the optical impedance spectroscopy, the color switching time or reaction time to perturbation can be determined. With this, the switching time can also be linked to the undergoing transport or redox processes.
The CIMPS mdtr/ois is equipped with four calibrated sensors (one for UV, one for IR range and two for visible light range) and can be used for characterizing the test objects in the broad wavelength range.
With CIMPS mdtr/ois, kinetic information may be unequivocally assigned to certain color species in a reaction chain.
Applications
- Solar Cell Research & Optimization
- Photovoltaic & Photo-Electrochemical Systems
- Energy Storage & Conversion Systems
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Quantum Design s.r.l.
Via Francesco Sapori, 27
00143 Roma
Italy
Phone: | +39 06 5004204 |
Fax: | +39 06 5010389 |
E-mail: | italy@qd-europe.com |