Wave band effect of solar cells under irradiation of CW laser
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1.
College of Photoelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China;
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2.
Yuanwang 2, Chinese Satellite Maritime Tracking and Controlling Department, Jiangyin 214431, China
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Received Date:
2010-09-28
Accepted Date:
2010-10-11
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Abstract
In order to find the wave band effect of solar cells under irradiation of continuous wave(CW) laser, the irradiation effect and damage effect of monocrystalline silicon solar cells were studied under the irradiation of three kinds of in-band or out-of-band CW laser. The response of solar cell to laser was observed. Then, the damage morphology of the cell and the absorption curves of its original material were compared, and the absorption mechanism of solar cells at the wavelengths near the intrinsic absorption long wavelength threshold was obtained. Finally, the reason for different damage results induced by 10.6m laser and 1064nm laser was analyzed. The results show that the great difference between the absorption coefficients of cover glass and silicon at different laser wavelengths is the reason for different damage results to solar cells.
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