Description |
1 online resource (14 p.) : ill. |
Series |
NREL/CP ; 5200-52441 |
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Conference paper (National Renewable Energy Laboratory (U.S.)) ; 5200-52441.
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System Details |
Full text available via Internet in .pdf format. Adobe Acrobat Reader required. |
Note |
Title from title screen (viewed Oct. 3, 2011). |
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"September 2011." |
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"Presented at SPIE Optics + Photonics 2011, San Diego, California, August 21-25, 2011." |
Summary |
The significant features of a series of stabilization experiments conducted at the National Renewable Energy Laboratory (NREL) between May 2009 and the present are reported. These experiments evaluated a procedure to stabilize the measured performance of thin-film polycrystalline cadmium telluride (CdTe) and copper indium gallium diselenide (CIGS) thin-film photovoltaic (PV) modules. The current-voltage (I-V) characteristics of CdTe and CIGS thin-film PV devices and modules exhibit transitory changes in electrical performance after thermal exposure in the dark and/or bias and light exposures. We present the results of our case studies of module performance versus exposure: light-soaked at 65 degrees C; exposed in the dark under forward bias at 65 degrees C; and, finally, longer-term outdoor exposure. We find that stabilization can be achieved to varying degrees using either light-soaking or dark bias methods and that the existing IEC 61646 light-soaking interval may be appropriate for CdTe and CIGS modules with one caveat: it is likely that at least three exposure intervals are required for stabilization. |
Bibliography |
Includes bibliographical references. |
Funding |
Sponsored by National Renewable Energy Laboratory contract no. DE-AC36-08GO28308 |
Subject |
Photovoltaic cells -- Testing -- Congresses.
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Solar cells -- Research -- Congresses.
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Thin films -- Congresses.
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Added Author |
Deline, Chris.
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National Renewable Energy Laboratory (U.S.)
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SPIE Optics and Photonics Conference.
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Added Title |
Metastable electrical characteristics of polycrystalline thin film photovoltaic modules upon exposure and stabilization |
Gpo Item No. |
0430-P-04 (online) |
Sudoc No. |
E 9.17:NREL/CP-5200-52441 |
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