| 摘要 |
PURPOSE:To estimate, by means of the luminous intensity of luminescent light, the characteristic of a thin-film solar cell which uses a formed CuInSe2-based thin film as an active layer and to enhance the rate of good products by a method wherein photoluminescence is adopted in order to evaluate the film quality of the CuInSe2-based thin film. CONSTITUTION:A CuInSe2-based thin-film solar cell is provided with a CuInSe2- based thin film wherein the maximum luminous intensity in the region of 0.8 to 0.9 eV of the spectrum of luminescent light emitted when light having a luminous energy of 1.0 eV is irradiated at a prescribed temperature is a prescribed value or higher. The figure shows the manufacturing process of the CuInSe2-based thin-film solar cell. Especially, after the CuInSe2-based film has been formed, the photoluminescence measuring process of a test piece is inserted. The measurement of photoluminescence is useful when the state of a proper level as the active layer of the CuInSe2-based thin-film solar cell is detected. Consequently, the CuInSe2-based thin film can be evaluated by utilizing it and the rate of good products can be enhanced. |
