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Potentiostat for Photovoltaic Solar Cell Testing

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    2019-01-25 09:46

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Wuhan Corrtest Instruments Corp.,Ltd








Room 501, Dingye Hall B, International Enterprise Center, Optics valley Ave, East Lake High-tech Development Zone, Wuhan, China


http://www.csechem.com/ http://kst2018.markbradleyconsultancy.com/

Product details

CS series Potentiostat / Galvanostat contains a fast digital function generator, high-speed data acquisition circuitry, a potentiostat and a galvanostat. With high performance in stability and accuracy with advanced hardware and well-functioned software, Corrtest potentiostat is widely used at many research institutes and universities for photovoltaic solar cell testing.

Potentiostat Specification:

support 2-, 3- or 4-electrode system

Maximum current output: 2.0A

Potential control range: ±10V

CV and LSV scan rate: 0.001mV~10,000V/s

Current control range: ±2A

CA and CC pulse width: 0.0001~65,000s

Potential control accuracy: 0.1%×full range±1mV

Current increment during scan: 1mA@1A/ms

Current control accuracy: 0.1%×full range

Potential increment during scan: 0.076mV@1V/ms

Potential resolution: 10μV (>100Hz), 3μV (<10Hz)

SWV frequency: 0.001~100 kHz

Current sensitivity: 10pA

DPV and NPV pulse width: 0.0001~1000s

Rise time: <1μs (<10mA), <10μs (<2A)

AD data acquisition: 16bit@1 MHz,20bit@1 kHz

Reference electrode input impedance: 1012Ω||20pF

DA Resolution: 16bit, setup time: 1μs

Current range: 2nA~2A, 10 ranges

Minimum potential increment in CV: 0.075mV

Compliance voltage: ±21V

IMP frequency: 10μHz~1MHz

Potential and current range: automatic

Low-pass filters: covering 8-decade

Electrochemical Impedance Spectroscopy (EIS)

Signal generator

Frequency range: 10μHz~1MHz

Output impedance: 50Ω

Frequency accuracy: 0.005%

Waveform: Sine wave, triangular wave and square wave

AC signal amplitude: 1mV~2500mV

Wave distortion: <1%

Signal resolution: 0.1 mV RMS

Scan mode: Logarithmic/linear, increase/decrease

DC Bias: -10~+10V

Signal analyzer

Measurement delay: 0~105s

Integral time: minimum: 10ms or the longest time of a cycle

Maximum: 106 cycles or 105s

DC offset compensation

Potential automatic compensation range: -10V~+10V

Bandwidth: 8-decade frequency range, automatic and manual setting

Current compensation range: -1A~+1A

OS Requirement

Operating System: Windows 2000/XP/ Win7/Win8/Win10

Communications Interface: isolated Universal Serial Bus (USB 2.0)

Single Channel Potentiostat Software / Techniques

Electrochemical method






Stable polarization

Open Circuit Potential (OCP)

Potentiostatic (I-T Curve)


Potentiodynamic (Tafel)


Transient polarization

Multi-Potential Steps

Multi-Current Steps

Potential Stair-Step (VSTEP)

Galvanic Stair-Step (ISTEP)

Chrono Methods

Chronopotentiometry (CP)

Chronoamperometry (CA)

Chronocoulometry (CC)


Linear Sweep Voltammetry (LSV)

Cyclic Voltammetry (CV)

Staircase Voltammetry (SCV)

Differential Pulse Voltammetry (DPV)

Normal Pulse Voltammetry (NPV)

Square wave voltammetry (SWV)

AC voltammetry (ACV)

Differential Normal Pulse

     Voltammetry (DNPV)

2nd Harmonic A.C.Voltammetry


Stripping Voltammetry

Potentiostatic stripping

Linear stripping

Staircase stripping

Square wave stripping


EIS vs Frequency (IMP)

EIS vs Time (IMPT)

EIS vs Potential (IMPE)

Corrosion Test

Cyclic polarization curve (CPP)

Linear polarization curve (LPR)

Electrochemical Noise (EN)

Zero Resistance Ammeter (ZRA)

Battery Test

Battery charge and discharge

Galvanostatic charge and discharge (GCD)


Data Logger

Waveform generator

Disc machine control

1. How about delivery?

Usually we can deliver goods within 7 working days after payment is received. The goods are delivered by express such as DHL, FedEx, UPS etc.


2. Should we do the calibration before testing?

Before shipment, instruments are already tested and calibrated by our engineers, so customer don't need to do calibration again. The "calibration" and password in the software is for our internal use.


3. How to check if the potentiostat galvanostat is fine?

Customers can use dummy cell to check the instrument.


Connect the green clamp to WE, the yellow clamp to RE, and the red one to CE. 

Based on the principles of the potentiostat, when change the applied potential, the output current should always obey the Ohm law: I= E/R. For example, do the experiment of potentiostatic, and set the applied voltage to be 1.1V, and then check if the response current is 1mA. If it is, it means the instrument is well functional. 

4. What's the standard supply list for a set of potentiostat galvanostat ?

For a set of potentiostat galvanostat, you will receive:

The instrument, software, power cable(British, European, or American standard), USB cable( for Bipotentiostat it's Ethernet cable), electrode cable, manual.

For electrodes and electrochemical cells, you should purchased separately.

5. How to install the software?

CS studio software is user-friendly. Customers just need to follow the steps mentioned in the instructions and manual that we provide with the instrument.