標題: Realistic quantum design of silicon quantum dot intermediate band solar cells
作者: Hu, Weiguo
Igarashi, Makoto
Lee, Ming-Yi
Li, Yiming
Samukawa, Seiji
電機資訊學士班
Undergraduate Honors Program of Electrical Engineering and Computer Science
公開日期: 5-Jul-2013
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.
URI: http://dx.doi.org/10.1088/0957-4484/24/26/265401
http://hdl.handle.net/11536/22207
ISSN: 0957-4484
DOI: 10.1088/0957-4484/24/26/265401
期刊: NANOTECHNOLOGY
Volume: 24
Issue: 26
結束頁: 
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