Can a contactless method improve current-voltage testing of silicon solar cells?

A contactless method for current-voltage testing of silicon solar cells is proposed. It may reduce cell breakage and costs. It may improve line throughput and light homogeneity and gives extra information. The method combines four contactless measurement techniques. The proof of principle of the method is successfully demonstrated for 3 cell types.

What is the open circuit voltage of silicon based solar cells?

Thus, when the sun is weak, the open circuit voltage of the silicon-based solar cell changes linearly with the intensity of the light,when the sun is too strong, then the light intensity changes with logarithmic.The open circuit voltage of silicon-based solar cells is generally between 0.5-0.58V. PH − D R sh .

Why is electrical characterization of PV cells important?

Researchers and manufacturers of PV cells strive to achieve the highest possible efficiency with minimal losses. As a result, electrical characterization of the cell as well as PV materials is performed as part of research and development and during the manufacturing process.

What is a solar photovoltaic system?

Solar photovoltaic system consists of an array of solar photovoltaic cells, power con-ditioners, batteries (not according to the conditions), the load, the control protection devices and other accessories. The energy of the system is solar, and solar photovol-taic cells consisted of semiconductor devices is the core of the system .

How is a solar simulator I-V curve measured?

Solar simulator I-V curve measurements of cells are typically carried out in the testing laboratory by employing a second cell, a calibrated reference cell. This reference cell is used to monitor and measure the total irradiance of the solar simu-lator during I-V testing.

What is spectral responsivity of a solar cell?

The spectral responsivity of a solar cell, R, – which quantifies the wavelength dependence of the cell’s photocurrent generation when normalized for the input ir-radiance or the radiant power of the incident monochromatic radiation – is a very informative and thus useful photovoltaic characteristic[11–18].