Fishing – trapping – and vermin destroying
Patent
1994-04-04
1995-03-21
Weisstuch, Aaron
Fishing, trapping, and vermin destroying
437 8, 136265, 136290, H01L 3118, H01L 31072
Patent
active
053995040
ABSTRACT:
The quality of CuInSe.sub.2 solar cells is estimated during the manufacturing process by using a photoluminescence analysis. Emitted luminescence is measured upon irradiation of a CuInSe.sub.2 thin film with laser light, and estimation is performed on the basis of the luminous intensity. Specifically, non-defective products can be obtained by using lots in which the maximum luminous intensity in the spectral range of luminescent light of 0.8.about.0.9 eV of a sample cooled to liquid nitrogen-temperature or to liquid helium temperature is not lower than a predetermined value or is higher than the maximum luminous intensity in the spectral range of 0.9.about.1.0 eV. Further, after the manufacturing process is completed, by using this estimation, it is possible to rank the products after completion of the manufacturing process.
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Fuji Electric Corporate Research & Development Ltd.
Weisstuch Aaron
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