| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a photovoltaic element that allows even an optical absorption layer formed from a compound having a chalcopyrite type crystal structure to be processed appropriately, and can improve yields. <P>SOLUTION: An n-type light-transmitting buffer layer 140 pn-joined to the optical absorption layer 130 is stacked and formed on a p-type conductive optical absorption layer 130 by a compound in a chalcopyrite structure stacked over a pair of back electrode layers 120 on one surface of a glass substrate 110. A light-transmitting transparent electrode layer 160 is stacked onto the buffer layer 140, and is provided from one side of the optical absorption layer 130 and the buffer layer 140 to one of the back electrode layers 120. The transparent electrode layer 160 is formed as an amorphous thin film having a membrane stress of not more than±1×10<SP>9</SP>Pa with indium oxide and zinc oxide as principal components. Satisfactory processing can be made without any inconvenience, such as cracks and omission, even in mechanical scribing that can be processed easily, thus improving productivity and hence improving the yields. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
