50% Efficiency intermediate band solar cell design using highly periodical silicon nanodisk array

Weiguo Hu; Makoto Igarashi; Ming Yi Lee; Yiming Li; Seiji Samukawa

doi:10.1109/IEDM.2012.6478987

50% Efficiency intermediate band solar cell design using highly periodical silicon nanodisk array

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

Innovative Energy Research Center

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

Abstract

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.

Original language	English
Title of host publication	2012 IEEE International Electron Devices Meeting, IEDM 2012
Pages	6.1.1-6.1.4
DOIs	https://doi.org/10.1109/IEDM.2012.6478987
Publication status	Published - 2012
Event	2012 IEEE International Electron Devices Meeting, IEDM 2012 - San Francisco, CA, United States Duration: 2012 Dec 10 → 2012 Dec 13

Publication series

Name	Technical Digest - International Electron Devices Meeting, IEDM
ISSN (Print)	0163-1918

Other

Other	2012 IEEE International Electron Devices Meeting, IEDM 2012
Country/Territory	United States
City	San Francisco, CA
Period	12/12/10 → 12/12/13

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Materials Chemistry

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10.1109/IEDM.2012.6478987

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50% Efficiency intermediate band solar cell design using highly periodical silicon nanodisk array. / Hu, Weiguo; Igarashi, Makoto; Lee, Ming Yi et al.
2012 IEEE International Electron Devices Meeting, IEDM 2012. 2012. p. 6.1.1-6.1.4 6478987 (Technical Digest - International Electron Devices Meeting, IEDM).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hu, W, Igarashi, M, Lee, MY, Li, Y & Samukawa, S 2012, 50% Efficiency intermediate band solar cell design using highly periodical silicon nanodisk array. in 2012 IEEE International Electron Devices Meeting, IEDM 2012., 6478987, Technical Digest - International Electron Devices Meeting, IEDM, pp. 6.1.1-6.1.4, 2012 IEEE International Electron Devices Meeting, IEDM 2012, San Francisco, CA, United States, 12/12/10. https://doi.org/10.1109/IEDM.2012.6478987

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abstract = "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.",

author = "Weiguo Hu and Makoto Igarashi and Lee, {Ming Yi} and Yiming Li and Seiji Samukawa",

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PY - 2012

Y1 - 2012

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AB - 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.

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50% Efficiency intermediate band solar cell design using highly periodical silicon nanodisk array

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