Design, preparation, and durability of TiO2/SiO2 and ZrO2/SiO2 double-layer antireflective coatings in crystalline silicon solar modules
Design, preparation, and durability of TiO2/SiO2 and ZrO2/SiO2 double-layer antireflective coatings in crystalline silicon solar modules
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DOI:
10.1016/j.solener.2012.12.011
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发表时间:
2013-03
期刊:
影响因子:
6.7
通讯作者:
Jia Li;Yuehui Lu;P. Lan;Xianpeng Zhang;W. Xu;R. Tan;Weijie Song;K. Choy
中科院分区:
文献类型:
--
作者:
Jia Li;Yuehui Lu;P. Lan;Xianpeng Zhang;W. Xu;R. Tan;Weijie Song;K. Choy
This paper reports the use of a combination of numerical calculations and experimental work to establish the optimum photovoltaic transmittance (Tpv) and durability of the quarter wave, the quarter-half wave, and the non-quarter wave double-layer TiO2–SiO2and ZrO2–SiO2antireflective coatings (ARCs) on solar glass towards practical photovoltaic applications. Numerical calculations based on 4×4 propagation matrix method indicated that the non-quarter wave double-layer ARCs exhibited higher Tpvvalues than those of the quarter wave and the quarter-half wave ARCs. Such calculated values are in good agreement with the experimental Tpvvalues. For examples, the Tpvvalues for the non-quarter wave double-layer TiO2–SiO2and ZrO2–SiO2ARCs prepared by sol–gel reached 94.4±0.1% and 94.3±0.1%, respectively. In terms of the coating durability, the non-quarter wave double-layer coatings with a dense and thicker TiO2or ZrO2barrier layer on solar glass exhibited less than 1% reduction in Tpvafter 96h highly-accelerated temperature and humidity stress test (HAST), as compared with the standard single-layer porous SiO2used in industry which tested in the same HAST conditions to be greater than (15.4%) after 48h. Single crystalline Si modules encapsulated by the non-quarter wave TiO2–SiO2or ZrO2–SiO2AR-coated glass are more durable, with only less than 10% degradation in efficiency after 48h HAST, as compared with Si modules encapsulated by single-layer porous SiO2AR-coated glass which have signification loss in efficiency (circa. 21.8%).