Defect Clusters in Multicrystalline Silicon: Their Nature and Influence on the Solar Cell Performance

B. Sopori; V. Budhraja; P. Rupnowski; S. Johnston; N. Call; H. Moutinho; M. Al-Jassim

doi:10.1109/pvsc.2009.5411527

Defect Clusters in Multicrystalline Silicon: Their Nature and Influence on the Solar Cell Performance

B. Sopori, V. Budhraja, P. Rupnowski, S. Johnston, N. Call, H. Moutinho, M. Al-Jassim

Materials Science

National Renewable Energy Laboratory

Research output: Contribution to conference › Paper › peer-review

9 Scopus Citations

Abstract

This paper presents theoretical and experimental results of our studies to determine the performance limitations set by defect clusters (DCs) in multicrystalline silicon (mc-Si) solar cells. DCs in mc-Si wafers are manifested as spatially localized, large regions of high dislocation density, around grains of certain preferred orientations. The presence of DCs strongly influences material properties and cell performance. The objective of our comprehensive study is to understand their nature, influence on cell performance, and to assess the performance improvement that can be realized if the influence of DCs can be eliminated. The effect of grain orientation on the defect density is also investigated. Finally, we explore possibilities of eliminating the formation of DCs during crystal growth or treating them during cell processing to minimize their electronic influence.

Original language	American English
Pages	1969-1974
Number of pages	6
DOIs	https://doi.org/10.1109/pvsc.2009.5411527 https://doi.org/10.1109/PVSC.2009.5411527
State	Published - 2009
Event	2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 - Philadelphia, PA, United States Duration: 7 Jun 2009 → 12 Jun 2009

Conference

Conference	2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
Country/Territory	United States
City	Philadelphia, PA
Period	7/06/09 → 12/06/09

NREL Publication Number

NREL/CP-520-46068

Keywords

photovoltaic cells
silicon

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Sopori, B., Budhraja, V., Rupnowski, P., Johnston, S., Call, N., Moutinho, H., & Al-Jassim, M. (2009). Defect Clusters in Multicrystalline Silicon: Their Nature and Influence on the Solar Cell Performance. 1969-1974. Paper presented at 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009, Philadelphia, PA, United States. https://doi.org/10.1109/pvsc.2009.5411527, https://doi.org/10.1109/PVSC.2009.5411527

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abstract = "This paper presents theoretical and experimental results of our studies to determine the performance limitations set by defect clusters (DCs) in multicrystalline silicon (mc-Si) solar cells. DCs in mc-Si wafers are manifested as spatially localized, large regions of high dislocation density, around grains of certain preferred orientations. The presence of DCs strongly influences material properties and cell performance. The objective of our comprehensive study is to understand their nature, influence on cell performance, and to assess the performance improvement that can be realized if the influence of DCs can be eliminated. The effect of grain orientation on the defect density is also investigated. Finally, we explore possibilities of eliminating the formation of DCs during crystal growth or treating them during cell processing to minimize their electronic influence.",

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author = "B. Sopori and V. Budhraja and P. Rupnowski and S. Johnston and N. Call and H. Moutinho and M. Al-Jassim",

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doi = "10.1109/pvsc.2009.5411527",

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note = "2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 ; Conference date: 07-06-2009 Through 12-06-2009",

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Sopori, B, Budhraja, V, Rupnowski, P , Johnston, S, Call, N, Moutinho, H & Al-Jassim, M 2009, 'Defect Clusters in Multicrystalline Silicon: Their Nature and Influence on the Solar Cell Performance', Paper presented at 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009, Philadelphia, PA, United States, 7/06/09 - 12/06/09 pp. 1969-1974. https://doi.org/10.1109/pvsc.2009.5411527, https://doi.org/10.1109/PVSC.2009.5411527

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T1 - Defect Clusters in Multicrystalline Silicon: Their Nature and Influence on the Solar Cell Performance

AU - Sopori, B.

AU - Budhraja, V.

AU - Rupnowski, P.

AU - Johnston, S.

AU - Call, N.

AU - Moutinho, H.

AU - Al-Jassim, M.

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N2 - This paper presents theoretical and experimental results of our studies to determine the performance limitations set by defect clusters (DCs) in multicrystalline silicon (mc-Si) solar cells. DCs in mc-Si wafers are manifested as spatially localized, large regions of high dislocation density, around grains of certain preferred orientations. The presence of DCs strongly influences material properties and cell performance. The objective of our comprehensive study is to understand their nature, influence on cell performance, and to assess the performance improvement that can be realized if the influence of DCs can be eliminated. The effect of grain orientation on the defect density is also investigated. Finally, we explore possibilities of eliminating the formation of DCs during crystal growth or treating them during cell processing to minimize their electronic influence.

AB - This paper presents theoretical and experimental results of our studies to determine the performance limitations set by defect clusters (DCs) in multicrystalline silicon (mc-Si) solar cells. DCs in mc-Si wafers are manifested as spatially localized, large regions of high dislocation density, around grains of certain preferred orientations. The presence of DCs strongly influences material properties and cell performance. The objective of our comprehensive study is to understand their nature, influence on cell performance, and to assess the performance improvement that can be realized if the influence of DCs can be eliminated. The effect of grain orientation on the defect density is also investigated. Finally, we explore possibilities of eliminating the formation of DCs during crystal growth or treating them during cell processing to minimize their electronic influence.

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M3 - Paper

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EP - 1974

T2 - 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009

Y2 - 7 June 2009 through 12 June 2009

ER -

Defect Clusters in Multicrystalline Silicon: Their Nature and Influence on the Solar Cell Performance

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Keywords

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