標題: 50% Efficiency Intermediate Band Solar Cell Design Using Highly Periodical Silicon Nanodisk Array
作者: Hu, Weiguo
Igarashi, Makoto
Lee, Ming-Yi
Li, Yiming
Samukawa, Seiji
電機工程學系
Department of Electrical and Computer Engineering
公開日期: 2012
摘要: A high-quality Si nanodisk superlattice is fabricated by our top-down process. For the first time, a 3D finite element method (FEM) is developed to calculate energy band structure, optical and electrical properties, as well as the intermediate band solar cell (IBSC) operation for the realistic structure. Both the experiments and simulations reveal that miniband formation enhances the optical and electrical collections. Consequently, detailed electronic structure and conversion efficiency are examined to guide optimal design of minibands. A theoretically predicted maximal efficiency of the explored Si nanodisk superlattice is 50.3%, which is promising, compared with well-known complicated Si tandem solar cells.
URI: http://hdl.handle.net/11536/135432
ISBN: 978-1-4673-4870-6
978-1-4673-4872-0
期刊: 2012 IEEE INTERNATIONAL ELECTRON DEVICES MEETING (IEDM)
Appears in Collections:Conferences Paper