Silicon nanowire-array-textured solar cells for photovoltaic application

Chen Chen; Rui Jia; Huihui Yue; Haofeng Li; Xinyu Liu; Deqi Wu; Wuchang Ding; Tianchun Ye; Seiya Kasai; Hashizume Tamotsu; Junhao Chu; Shanli Wang

doi:10.1063/1.3493733

Silicon nanowire-array-textured solar cells for photovoltaic application

Chen Chen, Rui Jia, Huihui Yue, Haofeng Li, Xinyu Liu, Deqi Wu, Wuchang Ding, Tianchun Ye, Seiya Kasai, Hashizume Tamotsu, Junhao Chu, Shanli Wang

Materials Research Institute (MRI)

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

In this paper, a vertical-aligned silicon nanowires (Si NWs) array has been synthesized and implemented to the Si NW-array-textured solar cells for photovoltaic application. The optical properties of a Si NWs array on both the plane and pyramid-array-textured substrates were examined in terms of optical reflection property. Less than 2% reflection ratio at 800 nm wavelength was achieved. Using leftover monocrystalline Si (c-Si) wafer (125×125 mm ²), a 16.5% energy conversion efficiency, with 35.4% enhancement compared to the pyramid-array-textured c-Si solar cells, was made by the Si NW-array-textured solar cells due to their enhanced optical absorption characteristics. However, without SiN_x passivation, the short circuit current reduced due to the increased surface recombination when using Si NWs array as surface texturing, indicating that an optimum surface passivation was prerequisite in high-efficiency Si NW-array-textured solar cells.

Original language	English (US)
Article number	094318
Journal	Journal of Applied Physics
Volume	108
Issue number	9
DOIs	https://doi.org/10.1063/1.3493733
State	Published - Nov 1 2010

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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title = "Silicon nanowire-array-textured solar cells for photovoltaic application",

abstract = "In this paper, a vertical-aligned silicon nanowires (Si NWs) array has been synthesized and implemented to the Si NW-array-textured solar cells for photovoltaic application. The optical properties of a Si NWs array on both the plane and pyramid-array-textured substrates were examined in terms of optical reflection property. Less than 2% reflection ratio at 800 nm wavelength was achieved. Using leftover monocrystalline Si (c-Si) wafer (125×125 mm 2), a 16.5% energy conversion efficiency, with 35.4% enhancement compared to the pyramid-array-textured c-Si solar cells, was made by the Si NW-array-textured solar cells due to their enhanced optical absorption characteristics. However, without SiNx passivation, the short circuit current reduced due to the increased surface recombination when using Si NWs array as surface texturing, indicating that an optimum surface passivation was prerequisite in high-efficiency Si NW-array-textured solar cells.",

author = "Chen Chen and Rui Jia and Huihui Yue and Haofeng Li and Xinyu Liu and Deqi Wu and Wuchang Ding and Tianchun Ye and Seiya Kasai and Hashizume Tamotsu and Junhao Chu and Shanli Wang",

note = "Funding Information: This work was subsidized by the 973 Projects under Grant Nos. 2006CB604904 and 2009CB939703, by the Chinese NSF under Grant Nos. 60706023, 60676001, 90401002, and 90607022, by CAS under Grant No. YZ0635, and under the Chinese Academy of Solar Energy Action Plan, China. Also this work was also subsidized by PRESTO, Japan Science and Technology Agency, 4-1-8, Honcho, Kawaguchi-shi, Saitama 332-0012, Japan.",

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AU - Chen, Chen

AU - Jia, Rui

AU - Yue, Huihui

AU - Li, Haofeng

AU - Liu, Xinyu

AU - Wu, Deqi

AU - Ding, Wuchang

AU - Ye, Tianchun

AU - Kasai, Seiya

AU - Tamotsu, Hashizume

AU - Chu, Junhao

AU - Wang, Shanli

N1 - Funding Information: This work was subsidized by the 973 Projects under Grant Nos. 2006CB604904 and 2009CB939703, by the Chinese NSF under Grant Nos. 60706023, 60676001, 90401002, and 90607022, by CAS under Grant No. YZ0635, and under the Chinese Academy of Solar Energy Action Plan, China. Also this work was also subsidized by PRESTO, Japan Science and Technology Agency, 4-1-8, Honcho, Kawaguchi-shi, Saitama 332-0012, Japan.

PY - 2010/11/1

Y1 - 2010/11/1

N2 - In this paper, a vertical-aligned silicon nanowires (Si NWs) array has been synthesized and implemented to the Si NW-array-textured solar cells for photovoltaic application. The optical properties of a Si NWs array on both the plane and pyramid-array-textured substrates were examined in terms of optical reflection property. Less than 2% reflection ratio at 800 nm wavelength was achieved. Using leftover monocrystalline Si (c-Si) wafer (125×125 mm 2), a 16.5% energy conversion efficiency, with 35.4% enhancement compared to the pyramid-array-textured c-Si solar cells, was made by the Si NW-array-textured solar cells due to their enhanced optical absorption characteristics. However, without SiNx passivation, the short circuit current reduced due to the increased surface recombination when using Si NWs array as surface texturing, indicating that an optimum surface passivation was prerequisite in high-efficiency Si NW-array-textured solar cells.

AB - In this paper, a vertical-aligned silicon nanowires (Si NWs) array has been synthesized and implemented to the Si NW-array-textured solar cells for photovoltaic application. The optical properties of a Si NWs array on both the plane and pyramid-array-textured substrates were examined in terms of optical reflection property. Less than 2% reflection ratio at 800 nm wavelength was achieved. Using leftover monocrystalline Si (c-Si) wafer (125×125 mm 2), a 16.5% energy conversion efficiency, with 35.4% enhancement compared to the pyramid-array-textured c-Si solar cells, was made by the Si NW-array-textured solar cells due to their enhanced optical absorption characteristics. However, without SiNx passivation, the short circuit current reduced due to the increased surface recombination when using Si NWs array as surface texturing, indicating that an optimum surface passivation was prerequisite in high-efficiency Si NW-array-textured solar cells.

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Silicon nanowire-array-textured solar cells for photovoltaic application

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