Proper post-processing of thin-film solar cells is one of the important means to improve the performance of thin-film solar cells. As a common post-processing process, the annealing process can greatly improve the crystallinity of thin-film materials, remove defects, etc., thereby improving the performance of thin-film solar cells. Photoelectric conversion rate and stability of solar cells. In-line Four Point Probe Tester produced by Millennial Solar can accurately measure the sheet resistance and resistivity of thin film solar cells after completing the annealing process, thereby evaluating whether its photoelectric conversion rate meets industrial standards!

Impact on perovskite thin film solar cells

Perovskite thin film solar cell is a solar cell that uses perovskite material as the absorber layer. The solar cell has the characteristics of high absorption coefficient and long carrier lifetime. However, the solar cell has poor stability and is easily affected by temperature. Degraded due to the influence of factors such as humidity, light, etc. Therefore, the annealing process can help perovskite films greatly improve their crystallization quality and stability. The annealing process can promote the precursor reaction and crystallization of perovskite through high-temperature treatment, improve its grain size and uniformity, thereby improving the photoelectric conversion rate of perovskite thin film solar cells.

Impact on crystalline silicon thin film solar cells

Crystalline silicon thin film solar cells are solar cells that use a crystalline silicon thin film as the absorber layer. Its advantage is that it has similar photoelectric properties to crystalline silicon solar cells, but at a lower cost. The disadvantage is that the crystalline quality of the crystalline silicon thin film is poor and has many defects. The problem of short carrier lifetime and low efficiency.

Therefore, annealing the crystalline silicon film is an effective method to improve its performance. The annealing process can optimize the lattice structure of the crystalline silicon thin film through high-temperature treatment, improve the light transmittance and electrical conductivity of its surface, thereby improving the photoelectric conversion rate of the crystalline silicon thin film solar cell. The annealing process can also adjust the composition and doping concentration of the crystalline silicon film by changing the atmosphere or adding dopants, thereby improving its electrical properties and stability.

In-line Four Point Probe Tester 

The impact of the annealing process on the performance of thin-film solar cells is very important. However, after completing the annealing process of thin-film solar cells, the precise degree of performance improvement is often a vague concept. In order to make the vagueness clear, help manufacturers in production In-line Four Point Probe Tester can be used to test thin film solar cells after large-scale production in the line, and to evaluate whether the production can be put into practical application normally!

E-mail: market@millennialsolar.com

FPP230 Auto is an In-line Four Point Probe Tester specially designed for photovoltaic process monitoring. It can quickly and automatically scan the sample to obtain the sheet resistance distribution information at different positions of the sample. The measurement size can be customized according to the size of the customer's sample.

●Measurement range meets sheet resistance of 1mΩ~100MΩ

● Matching automation equipment and traceable at any time

●Perfectly connected with the automated production process of the production line

● Provide good electrical contact while ensuring zero breakage rate

●The number of measurement points can be customized according to customer needs

The annealing process is a post-processing process that has an important impact on the performance and stability of thin-film solar cells. By reasonably selecting and optimizing the parameters of the annealing process, the photoelectric conversion rate and stability of thin-film solar cells can be improved, which provides a basis for the improvement of thin-film solar cells. Provide technical support for development and application. In the future, Millennial Solar will continue to produce efficient and precise solar cell testing equipment to provide inexhaustible power for the development of the photovoltaic industry!