SOLAR BATTERY, DETECTING METHOD OF DEFECT IN SOLAR BATTERY, AND DEFECT DETECTING AND RECOVERING APPARATUS

摘要

PURPOSE: To provide a thin-film solar battery with highly radiative characteristics of infrared ray on the rear electrode side. ;CONSTITUTION: A transparent conductive film (transparent electrode) 2, a semiconductor conjunctive layer 3, and a rear-face electrode 4 are formed on a transparent insulating substrate 1 in a thin-film solar battery cell. An infrared- ray reflective film with reflectance of 5% or above (preferably, 50% or above) for infrared ray of 1μm to 20μm in wavelength (preferably 3μm to 5μm and 8μm to 13μm) is formed on the rear-face electrode 4 side in a spattering step with a target of SiO₂. Then, radiation of infrared ray on the rear electrode side can be improved. When there is a defect of short circuit in the thin-film solar battery, the defect can be detected by thermal-image measurement carried out from the rear electrode side, because the in-plane distribution of temperatures formed when a forward current is applied is enough to detect the defective location. As a result, the defect can be detected easily and accurately.;COPYRIGHT: (C)1996,JPO