Numerical approach to the investigation of performance of silicon nanowire solar cells embedded in a SiO2 matrix

Yasuyoshi Kurokawa, Shinya Kato, Yuya Watanabe, Akira Yamada, Makoto Konagai, Yoshimi Ohta, Yusuke Niwa, masaki Hirota

研究成果: ジャーナルへの寄稿記事

32 引用 (Scopus)

抄録

The electrical characteristics of silicon nanowire (SiNW) solar cells with p-type hydrogenated amorphous silicon oxide (Eg = 1:9 eV)/n-type SiNWs embedded in a SiO2/n-type hydrogenated amorphous silicon oxide (Eg = 1:9 eV) structure have been investigated using two- and threedimensional device simulators, taking into account the quantum size effect. The average bandgap of a SiNW embedded in SiO2 increased from 1.15 to 2.68 eV with decreasing diameter from 10 to 2 nm, owing to the quantum size effect. Note that under sunlight of AM1.5G, the open-circuit voltage (V oc) of SiNW solar cells also increased to 1.46 V with decreasing diameter of the SiNWs to 2 nm. This result suggests that it is possible to enhance Voc by applying the quantum size effect, and a SiNW is a promising material for all-silicon tandem solar cells.

元の言語英語
記事番号11PE12
ジャーナルJapanese journal of applied physics
51
発行部数11 PART2
DOI
出版物ステータス出版済み - 11 1 2012
外部発表Yes

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Nanowires
Solar cells
nanowires
solar cells
Silicon
silicon
matrices
Silicon oxides
Amorphous silicon
silicon oxides
amorphous silicon
Open circuit voltage
sunlight
open circuit voltage
simulators
Energy gap
Simulators

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

これを引用

Numerical approach to the investigation of performance of silicon nanowire solar cells embedded in a SiO2 matrix. / Kurokawa, Yasuyoshi; Kato, Shinya; Watanabe, Yuya; Yamada, Akira; Konagai, Makoto; Ohta, Yoshimi; Niwa, Yusuke; Hirota, masaki.

:: Japanese journal of applied physics, 巻 51, 番号 11 PART2, 11PE12, 01.11.2012.

研究成果: ジャーナルへの寄稿記事

Kurokawa, Yasuyoshi ; Kato, Shinya ; Watanabe, Yuya ; Yamada, Akira ; Konagai, Makoto ; Ohta, Yoshimi ; Niwa, Yusuke ; Hirota, masaki. / Numerical approach to the investigation of performance of silicon nanowire solar cells embedded in a SiO2 matrix. :: Japanese journal of applied physics. 2012 ; 巻 51, 番号 11 PART2.
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AU - Konagai, Makoto

AU - Ohta, Yoshimi

AU - Niwa, Yusuke

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