Intensity Modulated Photovoltage Spectrometer

In intensity-modulated photovoltage spectroscopy, the device is illuminated with a sinusoidally varying light intensity. The device is left in an open circuit, so no current flows, and the voltage is measured. A type of spectroscopy where light energy (from a fluctuating light source) absorbed by the sample results in the production of a potential difference (the 'photovoltage') which is measured at different spectral intervals as a function of the modulation frequency of the light source.

Sample Requirements

• Powder: 50mg
• Thin films on ITO / FTO glass
• Electrode / Battery

Application

• For the measurement of transient photoelectric performance of solar cells
• For the study of electron transport dynamics in semiconductor electrodes

Instrument and Result Display

FAQ

Q1. What is the general three-electrode system?

A. Counter electrode, reference electrode, working electrode.

Q2. What should be paid attention to in the electrochemical test?

A. Electrode preparation, parameter setting, cycle stability of sample material.

Q3. What is the full name of DPV in electrochemistry?

A. Differential pulse voltammetry.

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