CIMPS - Photovoltaic / Photoelectrochemical System

Overview

Zahner'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)". Further information on our light feedback loop and its benefits is provided in the manuscript "C in CIMPS". Besides standard electrochemical measurements, a list of the standard photoelectrochemical or photovoltaic measurements is provided below

• Intensity modulated photocurrent spectroscopy (IMPS)
• Intensity modulated photovoltage spectroscopy (IMVS)
• Light transient measurement
• Chopped light voltammetry

Specifications

CIMPS X

CIMPS PRO

Extensions

CIMPS extensions
Extend your CIMPS workstation for a number of photoelectrochemical applications, e.g., spectral resolved emission, transmittance and/or absorbance measurements.
CIMPS-EMIT
CIMPS-EMIT allows the characterization of electroluminescence processes. It can be used for integral or spectral-resolved light emission measurements. For spectral resolved measurements a UV-VIS-NIR-Spektrometer is used, for integral intensity measurements a photodiode with NIST-traceable calibration.
CIMPS-ABS
CIMPS-ABS allows spectral resolved transmittance / absorbance measurements to characterize electro-chromic processes. A reference cell, identical to the test cell but without a test object, is used in parallel to the test cell to eliminate the light losses due to front window reflection and absorption in the electrolyte etc. This allows an accurate measurement of the absorption spectrum.

CIMPS-PCS
CIMPS-PCS allows "quantum efficiency" or "incident photon to current efficiency (IPCE)" measurements for the characterization of photoelectrodes or solar cells. Additional measurement indicators show if the measurement settings are suitable for measuring the true IPCE for different kinds of solar cells (DSSC, organic cells, III-V etc).

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-MDTR/OIS
CIMPS-MTDR/OIS allows the characterization of electrochromic systems. Especially, dynamic properties of the electrochromic systems like color or opacity switching time with the current or voltage modulation. Similar to EIS, such dynamic measurements can provide insight into charge transfer and relaxation processes.