LIGHT-ABSORBING MATERIAL AND PHOTOELECTRIC CONVERSION ELEMENT USING THE SAME
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Dec 6, 2013
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Feb 20, 2009
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There is provided a new light-absorbing material and a photoelectric conversion element using the same, which are capable of improving conversion efficiency of a solar cell. The light-absorbing material in the present invention is made up of a GaN-based compound semiconductor with part of Ga replaced by a 3d transition metal, and has one or more impurity bands, and whose light absorption coefficient over an overall wavelength region of not longer than 1500 nm and not shorter than 300 nm is not lower than 1000 cm−1.
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