Development of heteroarene-fused and pi-expanded diazaporphyrins as n-type semiconductors

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K13762
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Energy-related chemistry
• Research Institution: Niigata University
• Principal Investigator: MATANO YOSHIHIRO 新潟大学, 自然科学系, 教授 (40231592)
• Co-Investigator(Renkei-kenkyūsha): IMAHORI Hiroshi 京都大学, 大学院工学研究科, 教授 (90243261)
• Research Collaborator: NAKANO Haruyuki 九州大学, 大学院理学研究科, 教授 (90251363)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: ジアザポルフィリン / 有機太陽電池 / 酸化還元 / ラジカル / 電荷移動特性

Outline of Final Research Achievements

In order to develop the chemistry of diazaporphyrins that have high electron-accepting and light-harvesting properties, we have (i) synthesized new diazaporphyrin derivatives bearing various substituents at the periphery, (ii) disclosed their structure-property relationships, and (iii) applied some derivatives in organic solar cells. As a result, we have found that the amino-substituted donor-acceptor-type diazaporphyrins show the intramolecular charge-transfer character derived from the intrinsically electron-withdrawing nature of the diazaporphyrin. Furthermore, we have succeeded in fabricating dye-sensitized solar cells using some diazaporphyrin-based dyes and revealed their potential as the photofunctional materials.

Free Research Field

有機化学