Silicon nanostructure solar cells with excellent photon harvesting

Chen Chen; Rui Jia; Huihui Yue; Haofeng Li; Xinyu Liu; Tianchun Ye; Seiya Kasai; Hashizume Tamotsu; Nanjian Wu; Shanli Wang; Junhao Chu; Bingshe Xu

doi:10.1116/1.3548876

Silicon nanostructure solar cells with excellent photon harvesting

Chen Chen, Rui Jia, Huihui Yue, Haofeng Li, Xinyu Liu, Tianchun Ye, Seiya Kasai, Hashizume Tamotsu, Nanjian Wu, Shanli Wang, Junhao Chu, Bingshe Xu

Materials Research Institute (MRI)

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

13 Scopus citations

Abstract

Silicon (Si) nanostructure solar cells have been synthesized using a nanowire (NW) array as the surface texturing. Optical-reflection measurement exhibits an excellent photon-harvesting property for the Si-NW-array texturization. Less than 2% reflection ratio at an 800 nm wavelength was achieved. Results show that an optimized 125×125 mm² Si nanostructure solar cell with an excellent photon-harvesting property has a 35.4% higher energy-conversion efficiency than the c -Si solar cell due to its enhanced optical-absorption characteristics. However, for the nanostructured solar cells, the decrease in external quantum efficiencies in the short-wavelength region proves that the surface recombination plays a critical role in determining the final quantum-efficiency performance, indicating that optimum surface passivation was a prerequisite in high-efficiency Si nanostructure solar cells.

Original language	English (US)
Article number	021014
Journal	Journal of Vacuum Science and Technology B
Volume	29
Issue number	2
DOIs	https://doi.org/10.1116/1.3548876
State	Published - 2011

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Instrumentation
Process Chemistry and Technology
Surfaces, Coatings and Films
Electrical and Electronic Engineering
Materials Chemistry

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10.1116/1.3548876

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@article{22a5afe99ae44bd28393143fd17c6946,

title = "Silicon nanostructure solar cells with excellent photon harvesting",

abstract = "Silicon (Si) nanostructure solar cells have been synthesized using a nanowire (NW) array as the surface texturing. Optical-reflection measurement exhibits an excellent photon-harvesting property for the Si-NW-array texturization. Less than 2% reflection ratio at an 800 nm wavelength was achieved. Results show that an optimized 125×125 mm2 Si nanostructure solar cell with an excellent photon-harvesting property has a 35.4% higher energy-conversion efficiency than the c -Si solar cell due to its enhanced optical-absorption characteristics. However, for the nanostructured solar cells, the decrease in external quantum efficiencies in the short-wavelength region proves that the surface recombination plays a critical role in determining the final quantum-efficiency performance, indicating that optimum surface passivation was a prerequisite in high-efficiency Si nanostructure solar cells.",

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

note = "Funding Information: This work was subsidized by the 973 Projects under Grant Nos. 2006CB604904 and 2009CB939703 and by the Chinese NSF under Grant Nos. 60706023, 60676001, 90401002, and 90607022 under the Chinese Academy of Solar Energy Action Plan, China. This work was also subsidized by PRESTO, Japan Science and Technology Agency, 4-1-8, Honcho, Kawaguchi-shi, Saitama 332-0012, Japan.",

year = "2011",

doi = "10.1116/1.3548876",

language = "English (US)",

volume = "29",

journal = "Journal of Vacuum Science and Technology B",

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TY - JOUR

T1 - Silicon nanostructure solar cells with excellent photon harvesting

AU - Chen, Chen

AU - Jia, Rui

AU - Yue, Huihui

AU - Li, Haofeng

AU - Liu, Xinyu

AU - Ye, Tianchun

AU - Kasai, Seiya

AU - Tamotsu, Hashizume

AU - Wu, Nanjian

AU - Wang, Shanli

AU - Chu, Junhao

AU - Xu, Bingshe

N1 - Funding Information: This work was subsidized by the 973 Projects under Grant Nos. 2006CB604904 and 2009CB939703 and by the Chinese NSF under Grant Nos. 60706023, 60676001, 90401002, and 90607022 under the Chinese Academy of Solar Energy Action Plan, China. This work was also subsidized by PRESTO, Japan Science and Technology Agency, 4-1-8, Honcho, Kawaguchi-shi, Saitama 332-0012, Japan.

PY - 2011

Y1 - 2011

N2 - Silicon (Si) nanostructure solar cells have been synthesized using a nanowire (NW) array as the surface texturing. Optical-reflection measurement exhibits an excellent photon-harvesting property for the Si-NW-array texturization. Less than 2% reflection ratio at an 800 nm wavelength was achieved. Results show that an optimized 125×125 mm2 Si nanostructure solar cell with an excellent photon-harvesting property has a 35.4% higher energy-conversion efficiency than the c -Si solar cell due to its enhanced optical-absorption characteristics. However, for the nanostructured solar cells, the decrease in external quantum efficiencies in the short-wavelength region proves that the surface recombination plays a critical role in determining the final quantum-efficiency performance, indicating that optimum surface passivation was a prerequisite in high-efficiency Si nanostructure solar cells.

AB - Silicon (Si) nanostructure solar cells have been synthesized using a nanowire (NW) array as the surface texturing. Optical-reflection measurement exhibits an excellent photon-harvesting property for the Si-NW-array texturization. Less than 2% reflection ratio at an 800 nm wavelength was achieved. Results show that an optimized 125×125 mm2 Si nanostructure solar cell with an excellent photon-harvesting property has a 35.4% higher energy-conversion efficiency than the c -Si solar cell due to its enhanced optical-absorption characteristics. However, for the nanostructured solar cells, the decrease in external quantum efficiencies in the short-wavelength region proves that the surface recombination plays a critical role in determining the final quantum-efficiency performance, indicating that optimum surface passivation was a prerequisite in high-efficiency Si nanostructure solar cells.

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Silicon nanostructure solar cells with excellent photon harvesting

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