Development of organic tandem solar cells showing 15% efficiency by the pn-control of co-deposited films

2016 Fiscal Year Final Research Report

• Project/Area Number: 25286044
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Applied materials
• Research Institution: Institute for Molecular Science
• Principal Investigator: HIRAMOTO MASAHIRO 分子科学研究所, 物質分子科学研究領域, 教授 (20208854)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 有機太陽電池 / キャリアハイウェー / 超バルクヘテロ接合 / ドーピング有機単結晶 / ホール効果

Outline of Final Research Achievements

Carrier highway films, i.e., single crystalline films of high hole-mobility organic semiconductor and a high electron-mobility organic semiconductor were fabricated. Lateral extraction of photogenerated holes and electrons of the order of 1 mm was demonstrated in the hole and electron highway. Operation of super-bulkheterojunction cells combining the hole and electron highway, which can be regarded as a new type of organic tandem solar cell, was demonstrated. Hall effect measurements of the doped organic single crystals were succeeded for the first time. The present results have the meaning of dawn of organic single crystal electronics such as high performance organic single crystal solar cells.

Free Research Field

有機薄膜太陽電池