共发射极
异质结
光电子学
材料科学
晶体硅
平面的
太阳能电池
硅
非晶硅
聚合物太阳能电池
光伏系统
硅太阳电池
纳米技术
电气工程
计算机科学
工程类
计算机图形学(图像)
作者
Rolf Stangl,Jan Haschke,Martin Bivour,Lars Korte,M. Schmidt,K. Lips,Bernd Rech
标识
DOI:10.1016/j.solmat.2009.06.010
摘要
A planar rear emitter back contact silicon heterojunction (PreBC-SHJ) solar cell design is presented, which combines the advantages of different high efficiency concepts using point contacts, back contacts, and silicon heterojunctions. Electrically insulated point or stripe contacts to the solar cell absorber are embedded within a planar hydrogenated amorphous silicon emitter layer deposited at low temperature on the rear side. The new solar cell design requires less structuring and allows large structure sizes, enabling the use of low-cost patterning technologies such as inkjet printing or screen printing. By means of numerical computer simulation the efficiency potential of back contacted heterojunction solar cells is shown to exceed 24%. First PreBC-SHJ solar cells have been realized and exhibit higher short circuit currents than our state-of-the-art front contacted silicon heterojunction reference solar cells.
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