CdS／CdTe－CdS／Cu_2S异质二重结薄膜太阳电池的设计与计算

THE DESIGN AND CALCULATION OF TWO FOLD HETEROJUNCTION CdS/CdTe-CdS/Cu_2S THIN-FILM SOLAR CELL

根据半导体材料的性能参数，考虑光电压Ｖ和耗尽区宽度Ｗ的变化对光电流ＪＬ的影响，较严格地计算了ＣｄＳ／ＣｄＴｅ和ＣｄＳ／Ｃｕ２Ｓ两种异质结单晶薄膜太阳电池的光伏特性曲线。然后在的条件下，对由上述两种异质结构成的二重结太阳电池的ＣｄＴｅ、Ｃｕ２Ｓ厚度进行匹配，计算各种组合下二重结太阳电池的光伏特性曲线。理论证明最佳匹配厚度Ｈｍａｘ约为９．０６μｍ，最大短路电流、开路电压、转换效率分别为１４．２２ｍＡｃｍ－２、１．３Ｖ和１４、６８％。

ccording to the performance parameters of semiconductor materials and considering the effects of photovoltage v, depletion layer width W and interface recombination loss on the photocurrent JL, we calculated the photovoltaic behaviours of single crystalline thin-film CdS/CdTe and GdS/Cu2S heterojunction solar cells. The thickness of two fold junction solar cell which consisted of two single-junction cell was matched under conditions of . At the end. we calculated the photovoltaic behaviours of two fold junction solar cell in various matched conbinations.