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2023 Fiscal Year Final Research Report

Elucidation of the factors affecting the efficiency of inverted perovskite solar cells

Research Project

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Project/Area Number 21H02040
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 36020:Energy-related chemistry
Research InstitutionThe University of Tokyo

Principal Investigator

Han Liyuan  東京大学, 大学院総合文化研究科, 特任研究員 (20531172)

Co-Investigator(Kenkyū-buntansha) 中崎 城太郎  東京大学, 大学院総合文化研究科, 特任教授 (10444100)
Project Period (FY) 2021-04-01 – 2024-03-31
Keywordsペロブスカイト / 太陽電池 / パッシベーション
Outline of Final Research Achievements

Through this project, power conversion efficiency of inverted perovskite solar cells was improved more than 25%, based on improved crystallinity of perovskites, development of SAM type hole transport materials, and surface passivation of the perovskite layer. The developed perovskite solar cells proved to exhibit good stability. These investigations afforded following issues for further development of inverted perovskite solar cells: photo-current increase by bandgap narrowing of perovskites, photo-voltage improvement by decreased crystal defects, and basic investigations for further material exploration.

Free Research Field

太陽電池

Academic Significance and Societal Importance of the Research Achievements

本研究では、逆型ペロブスカイト太陽電池の効率向上を実現すると共に、高効率化を妨げている要因を解明した。この要因解明により、さらなる効率向上の道を開拓した。また、その過程で検討した手法は、他のデバイス開発にも活かすことができる。ペロブスカイト太陽電池は、脱炭素社会の実現に向けて大きな役割を果たすことが期待されており、本研究の成果は、そのペロブスカイト太陽電池の実用化に向けて重要な一歩となる。

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Published: 2025-01-30  

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