Development of novel ladder-type pi frameworks and high performance organic semiconducting materials.

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K15354
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 35030:Organic functional materials-related
• Research Institution: Hiroshima University
• Principal Investigator: Saito Masahiko 広島大学, 先進理工系科学研究科(工), 助教 (10756315)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: 有機薄膜太陽電池 / 有機半導体 / 半導体ポリマー / 非フラーレンアクセプター

Outline of Final Research Achievements

In this work, we have developed new non-fullerene acceptors for high-efficiency organic thin-film solar cells. novel non-fullerene acceptors have a ladder-type framework at the center and electron-withdrawing groups at the ends of the ladder-type framework. We have developed a ladder-type framework based on naphthobisthiadiazole moiety, and synthesized non-fullerene acceptors materials using the ladder-type framework, and investigated their electrochemical properties, ordering structure, and device characteristics for solar cell devices.

Free Research Field

有機薄膜太陽電池

Academic Significance and Societal Importance of the Research Achievements

本研究では、有機薄膜太陽電池の高効率化に向けた非フラーレンアクセプターの分子設計指針を提案している。特に三元系太陽電池の第三成分材料の高効率化を達成しており、学術的な観点だけでなく、有機薄膜太陽電池n社会実装に向けた材料開発においても大きく貢献できていると考えられる。