Realistic quantum design of silicon quantum dot intermediate band solar cells

Weiguo Hu*, Makoto Igarashi, Ming Yi Lee, Yiming Li, Seiji Samukawa

*此作品的通信作者

研究成果: Article同行評審

18 引文 斯高帕斯(Scopus)

摘要

A highly periodical Si nanodisk superlattice has been fabricated by our top-down process. Based on the realistic structure, a 3D simulation program using the finite element method is developed to calculate energy band structure, optical and electrical properties, as well as the intermediate band solar cell operation. 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 the 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.

原文English
文章編號265401
期刊Nanotechnology
24
發行號26
DOIs
出版狀態Published - 5 7月 2013

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