CIGS Solar Cells and Submodules on Stainless Steel Substrates with Insulating Layer
作者单位：Advanced Devices Development Center Matsushita Electric Ind.Co. Ltd. Corporate Manufacturing Innovation Division Matsushita Electric Ind.Co. Ltd 3-4 Hikaridai Seika Soraku Kyoto 619-0237 JAPAN Phone/Fax
会议名称：《第十五届国际光伏科学与工程大会》
会议日期：2005年
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
关 键 词：Cu(In,Ga)Se2 CIGS Stainless steel Insulator
摘 要：Cu(In,Ga)Se (CIGS) thin film solar cells and submodules using stainless steel substrates were fabricated. Sub millimeter thick insulating layers formed on the stainless steel substrates sufficiently isolate between Mo films and substrates but had not flexibility. The submodules with a structure of ITO/ ZnO/ CdS/ CIGS/ Mo/ insulator/ stainless steel were fabricated by using sputtering, coevaporation, chemical bath, and patterning of laser and mechanical scribing. The average conversion efficiency of the cells on the 5cm×10cm substrate was reached to be 15.0% and the best efficiency was 15.8%. The submodule with an apperture area of 54cm showed an efficiency of 11.5% without an antireflective coating. A decrease of the submodule efficiency is mainly attributed to the loss of the transmittance of the ITO film. Further optimization of the ITO film and submodule design is indispensable to achieve high efficiency of the submodule.