図1：有機太陽電池における光電流生成とエネルギー条件 (IMAGE)

Chiba University

図1：有機太陽電池における光電流生成とエネルギー条件

Caption

Photocurrent can be sustained when the donor optical gap approaches the free-carrier energy (Eg, Dopt≈ ECS ). Rigid donor molecules can further reduce CT-state relaxation and effective CT binding, helping to suppress voltage losses near this thermodynamic boundary.

Credit

Hirohiko Fukagawa, Taku Oono, Yusuke Aoki, Tsubasa Sasaki, Haruto Shoji, Manato Tateno, Seita Kyogoku, Shintaro Mitsui, Hisao Ishii, Feiran Liu, Takuji Hatakeyama, and Takahisa Shimizu. A Unified Thermodynamic Framework for Photocurrent Generation and Voltage Losses in Organic Photovoltaics. Advanced Materials. 2026. © Copyright 2026 Wiley-VCH GmbH or related companies. All rights reserved, including rights for text and data mining and training of artificial intelligence technologies or similar technologies. This permission does not include the right to grant others permission to photocopy or otherwise reproduce this material except for accessible versions made by non-profit organizations serving the blind, visually impaired and other persons with print disabilities (VIPs). Image source link: https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.75304

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