Dominant Effects of First Monolayer Energetics at Donor/Acceptor Interfaces on Organic Photovoltaics

被引：47

作者：

Izawa, Seiichiro ^{[1
,2
]}

Nakano, Kyohei ^{[1
]}

Suzuki, Kaori ^{[1
]}

Hashimoto, Kazuhito ^{[2
]}

Tajima, Keisuke ^{[1
,3
]}

机构：

[1] RIKEN, CEMS, Wako, Saitama 3510198, Japan

[2] Univ Tokyo, Grad Sch Engn, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan

[3] Japan Sci & Technol Agcy, Precursory Res Embryon Sci & Technol PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

ADVANCED MATERIALS | 2015年 / 27卷 / 19期

关键词：

cascade energy landscape; charge recombination; charge separation; donor; acceptor interfaces; organic photovoltaics; CHARGE SEPARATION; RECOMBINATION; ENERGY; DEVICES; STATES; PERFORMANCE; GENERATION;

D O I：

10.1002/adma.201500840

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Energy levels of the first monolayer are manipulated at donor/acceptor interfaces in planar heterojunction organic photovoltaics by using molecular self-organization. A "cascade" energy landscape allows thermal-activation-free charge generation by photoirradiation, destabilizes the energy of the interfacial charge-transfer state, and suppresses bimolecular charge recombination, resulting in a higher open-circuit voltage and fill factor. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：3025 / 3031

页数：7

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