The design of UV/IR cut-off filter for silicon solar cell

Wenhua Yang; Guangjun Xie

doi:10.1117/12.674292

9 June 2006 The design of UV/IR cut-off filter for silicon solar cell

Wenhua Yang, Guangjun Xie

Proceedings Volume 6149, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 61492Q (2006) https://doi.org/10.1117/12.674292
Event: 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2005, Xian, China

Abstract

In order to increase the reflection of incidence light which its wavelength is less than 350nm and higher than 1120nm (λ<350nm and λ>1120nm) on the surface of silicon solar cell and show no influence on the transmission of the light in spectral response range (350nm<λ<1120nm) of silicon, the IR/UV cut-off filter on encapsulation glass of silicon solar cell was designed. It can make silicon solar cell absorb the incidence light with selectivity. According to the theory of optical film, a computer program was designed. The IR cut-off filter of A[1.05(LMHML)]⁶[1.15(LMHML)]1.15LG on the top surface of encapsulation glass for solar cell was obtained. The transmission curve was plotted for IR cut-off filter. The curve shows: the IR cut-off filter has good selective transmission, most of the light (λ>1120nm) is reflected and all of the light (350nm<λ<1120nm) is almost transmitted to the solar cell. In the range between 350nm and 1120nm, the weighted transmission coefficient of light is 98.17%. Similarly, the UV cut-off filter of G ^H/₂ L ^H/₂⁷ S on the rear of encapsulation glass for solar cell was obtained. The transmission curve was also plotted. The curve shows: the UV cut-off filter has good selective transmission, the most of light (λ<350nm) is reflected and all of the light (350nm<λ<1120nm) is almost transmitted to the solar cell. The weighted transmission coefficient of light (350nm<λ<1120nm) is 98.65%. The whole coating that combined IR and UV cut-off filter has the best selective transmission, the most of light (both λ<350nm and λ>1120nm) is reflected and all of the light (350nm<λ<1120nm) is almost transmitted to the solar cell. By calculation, we gained the weighted transmission coefficient, T_W=97.49% (350nm<λ<1120nm).

Citation Download Citation

Wenhua Yang and Guangjun Xie "The design of UV/IR cut-off filter for silicon solar cell", Proc. SPIE 6149, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 61492Q (9 June 2006); https://doi.org/10.1117/12.674292

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