聚光光伏组件中具有微结构减反射涂层的太阳能电池的室外特性
Outdoor Characterization of Solar Cells with Micro-structured Anti-Reflective Coating in a Concentrator Photovoltaic Module
摘要：
微结构抗反射涂层（ARC）已被确定为一种有前途的解决方案，以减少聚光器光电子模块（CPV）的光损耗。我们在现场制造并测试了由4个子模块制成的CPV模块，其具有250倍的集中系数，其嵌入具有微结构化封装ARC的太阳能电池或具有多层ARC的太阳能电池作为参考。微结构封装ARC由半埋在聚二甲基硅氧烷（PDMS）中的二氧化硅珠制成。在提取浓缩器标准操作条件（CSOC）下的子模块性能之前，该模块在加拿大魁北克省舍布鲁克的恶劣气候条件下运行了1年。对于所有子模块，确定了+/-0.78度的接受角，表明在电池水平上改善角度收集对模块水平上的接受角没有显著影响。我们报告了12%至14%的短路电流和15%至19%的最大功率在CSOC的太阳能电池与微结构封装ARC相比，参考。尽管次优的模块设计，我们报告的子模块效率为29.7%，在CSOC的微结构封装ARC的细胞。这证明了微结构封装ARC改善CPV系统性能的潜力，并显示了PDMS中的Sumi掩埋微珠作为封装ARC的可靠性的承诺。
英文摘要：
Micro-structured anti reflective coatings (ARC) have been identified as a promising solution to reduce optical losses in Concentrator Photovoltaics modules (CPV). We fabricated and tested in field a CPV modules made of 4 sub-modules with a concentration factor of 250x, that embed either solar cells with micro-structured encapsulating ARC or solar cells with multilayer ARC as a reference. The micro-structured encapsulating ARC was made of semi-buried silica beads in polydimethylsiloxane (PDMS). The module was in operation for 1 year in the severe climatic conditions of Sherbrooke, Quebec, Canada, before extracting the sub-modules performance under Concentrator Standard Operating Condition (CSOC). An acceptance angle of +/-0.78 degree was determined for all sub-modules, demonstrating that improving angular collection at the cell level has no significant impact on the angle of acceptance at the module level. We report an increase of 12 to 14% of the short-circuit current and of 15 to 19% of maximum power at CSOC for solar cells with a micro structured encapsulating ARC compared to the reference. Despite a sub-optimal module design, we report a sub-module efficiency of 29.7% at CSOC for a cell with micro-structured encapsulating ARC. This proves the potential of micro-structured encapsulating ARC to improve CPV system performance and shows promise of reliability for sumi-buried microbeads in PDMS as encapsulating ARC.
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