Solution processing of thin films for organic / inorganic charge transfer crystal solar cells

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03854
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Organic and hybrid materials
• Research Institution: Yamagata University
• Principal Investigator: Yoshida Tsukasa 山形大学, 大学院理工学研究科, 教授 (90273127)
• Co-Investigator(Kenkyū-buntansha): 増原 陽人 山形大学, 大学院理工学研究科, 准教授 (30375167)
• Co-Investigator(Renkei-kenkyūsha): NAKAYAMA Kenichi 大阪大学, 大学院工学研究科, 教授 (20324808) ; OKADA Syuji 山形大学, 大学院理工学研究科, 教授 (30250848)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 太陽電池 / 有機無機ハイブリッド / 電極触媒 / ナノ微粒子 / 電荷移動錯体

Outline of Final Research Achievements

In order to avoid large voltage loss inherent in traditional organic solar cells in which carrier generation relies on energy offset, a novel concept to extract high voltage carriers from organic CT crystals has been proposed. Various solution-based techniques such as electrodeposition, chemical precipitation and microwave reaction have been developed to obtain novel CT materials and their thin films. Organic salt approach to employ tetracyano indanyl anion as donor and alkyl viologen cation as acceptor has been successful to yield variery of organic CT crystals with NIR absorption and emission. Reprecipitation of DBTTF-TCNQ CT nanocrystal and thin film device employing it has proven high voltage extraction. Co-doped ZnO nanocrystals has exhibited water oxidation electrocatalysis superior to renowned Co3O4.

Free Research Field

電気化学