Investigation of damage caused by partial shading of CuInxGa(1-x)Se2 photovoltaic modules with bypass diodes
Ji Eun Lee
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Search for more papers by this authorSoohyun Bae
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Search for more papers by this authorWonwook Oh
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Search for more papers by this authorHyomin Park
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Search for more papers by this authorSoo Min Kim
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Search for more papers by this authorDongho Lee
Photovoltaic Development Team, Samsung SDI Co., Ltd., Cheonan-Si, 331-300 Korea
Search for more papers by this authorJunggyu Nam
Photovoltaic Development Team, Samsung SDI Co., Ltd., Cheonan-Si, 331-300 Korea
Search for more papers by this authorChan Bin Mo
Photovoltaic Development Team, Samsung SDI Co., Ltd., Cheonan-Si, 331-300 Korea
Search for more papers by this authorDongseop Kim
KU-KIST Green School, Graduate School of Energy and Environment, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Photovoltaic Development Team, Samsung SDI Co., Ltd., Cheonan-Si, 331-300 Korea
Search for more papers by this authorJungYup Yang
Department of Physics, Kunsan National University, South Korea, 54150 Korea
Search for more papers by this authorCorresponding Author
Yoonmook Kang
KU-KIST Green School, Graduate School of Energy and Environment, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Correspondence
Donghwan Kim, Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 136-701, Korea.
E-mail: [email protected]
Search for more papers by this authorCorresponding Author
Hae-seok Lee
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Correspondence
Donghwan Kim, Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 136-701, Korea.
E-mail: [email protected]
Search for more papers by this authorCorresponding Author
Donghwan Kim
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Correspondence
Donghwan Kim, Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 136-701, Korea.
E-mail: [email protected]
Search for more papers by this authorJi Eun Lee
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Search for more papers by this authorSoohyun Bae
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Search for more papers by this authorWonwook Oh
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Search for more papers by this authorHyomin Park
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Search for more papers by this authorSoo Min Kim
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Search for more papers by this authorDongho Lee
Photovoltaic Development Team, Samsung SDI Co., Ltd., Cheonan-Si, 331-300 Korea
Search for more papers by this authorJunggyu Nam
Photovoltaic Development Team, Samsung SDI Co., Ltd., Cheonan-Si, 331-300 Korea
Search for more papers by this authorChan Bin Mo
Photovoltaic Development Team, Samsung SDI Co., Ltd., Cheonan-Si, 331-300 Korea
Search for more papers by this authorDongseop Kim
KU-KIST Green School, Graduate School of Energy and Environment, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Photovoltaic Development Team, Samsung SDI Co., Ltd., Cheonan-Si, 331-300 Korea
Search for more papers by this authorJungYup Yang
Department of Physics, Kunsan National University, South Korea, 54150 Korea
Search for more papers by this authorCorresponding Author
Yoonmook Kang
KU-KIST Green School, Graduate School of Energy and Environment, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Correspondence
Donghwan Kim, Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 136-701, Korea.
E-mail: [email protected]
Search for more papers by this authorCorresponding Author
Hae-seok Lee
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Correspondence
Donghwan Kim, Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 136-701, Korea.
E-mail: [email protected]
Search for more papers by this authorCorresponding Author
Donghwan Kim
Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-701 Korea
Correspondence
Donghwan Kim, Department of Material Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 136-701, Korea.
E-mail: [email protected]
Search for more papers by this authorAbstract
This study evaluated the impact of partial shading on CuInxGa(1-x)Se2 (CIGS) photovoltaic (PV) modules equipped with bypass diodes. When the CIGS PV modules were partially shaded, they were subjected to partial reverse bias, leading to the formation of hotspots and a possible occurrence of junction damage. In a module with a cadmium sulfide buffer layer, hotspots and wormlike defects were formed. The hotspots were formed as soon as the modules were shaded; the hotspots caused permanent damage (wormlike defects) in the CIGS module. Specifically, the wormlike defects were caused by the window layer, leading to increased recombination and decay of the solar cell properties. However, a CIGS module with a zinc sulfide buffer layer did not exhibit the formation of hotspots or any visual damage. The reverse bias breakdown voltage of the CIGS PV module with the cadmium sulfide buffer layer was higher than that of the CIGS PV module with the zinc sulfide buffer layer. Copyright © 2016 John Wiley & Sons, Ltd.
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