Smart interface management to implement a high quality strain balanced super-lattice solar cell
Strain-balanced super-lattice (SL) has been proved as a really potential structure to tune the bandgap of one junction in a tandem solar cell to achieve the optimized design as well as to pursue high efficiency single junction solar cell.By extending to a wider absorption edge to that of bulk material,SL solar cell can substantially enhance current density of the cell.Comparing with conventional multi-quantum well solar cell,it takes advantage of a minimized drop in open circuit voltage which is due to the unique and rapid carrier transport mechanism.The interface management is a very significant technique applied to implement a high quality SL.In this report,we focus on how to make a smart interface management for such a thin period structure.Role of the buffer GaAs layer was investigated by placing it at different location in the SL.
Yunpeng Wang ShaoJun Ma Hassanet Sodabanlu Hirosama Fujii Kentaroh Watanabe Masakazu Sugiyama Yoshiaki Nakano
Research Center for Advanced Science and Technology, the University of Tokyo 4-6-1 Komaba, Meguro-ku Department of Electrical Engineering and Information Systems, School of Engineering, the University
国际会议
The 22nd International Photovoltaic Science and Engineering Conference (第22届国际光伏科学与工程会议)
杭州
英文
1-4
2012-11-05（万方平台首次上网日期，不代表论文的发表时间）