PHOTOELECTRIC CONVERSION DEVICE

• Main Author: OGURI SEIJI
• Format: Patent
• Language: English; Japanese
• Published: 05.02.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To improve photoelectric conversion efficiency of a photoelectric conversion device by decreasing electric resistance between photoelectric conversion cells.SOLUTION: A photoelectric conversion device 11 includes: a substrate 1; a first lower electrode layer 2a and a second lower electrode layer 2b spaced from each other and disposed in one direction on the substrate 1; a photoelectric conversion layer PE disposed from above the first lower electrode layer 2a to above the second lower electrode layer 2b; a conductive film 5 that has a first portion 5a covering an upper surface of the photoelectric conversion layer PE, a second portion 5b connected to the first portion 5a and covering a side face of the photoelectric conversion layer PE, and a third portion 5c connected to the second portion 5b and covering a part of the second lower electrode layer 2b; and an auxiliary conductor 6 that is disposed in a range from a surface of the second portion 5b by way of a surface of the third portion 5c to a portion of an upper surface of the second electrode layer 2b not covered with the conductive film 5. 【課題】 光電変換セル間の電気抵抗を小さくすることによって、光電変換装置の光電変換効率を向上させる。【解決手段】 光電変換装置１１は、基板１と、基板１上に互いに間隔をあけて一方向に配置された第１の下部電極層２ａおよび第２の下部電極層２ｂと、第１の下部電極層２ａ上から第２の下部電極層２ｂ上にかけて配置された光電変換層ＰＥと、光電変換層ＰＥの上面を覆う第１部位５ａ、第１部位５ａに接続しているとともに光電変換層ＰＥの側面を覆う第２部位５ｂおよび第２部位５ｂに接続しているとともに第２の下部電極層２ｂの一部を覆う第３部位５ｃを有する導電膜５と、第２部位５ｂの表面から第３部位５ｃの表面を経て第２の下部電極層２ｂの上面の導電膜５に覆われていない部位にかけて配置された補助導体６とを具備する。【選択図】 図１