Transient Absorption Spectroscopy for Polymer Solar Cells

被引：36

作者：

Ohkita, Hideo ^{[1
,2
]}

Tamai, Yasunari ^{[1
]}

Benten, Hiroaki ^{[1
]}

Ito, Shinzaburo ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Polymer Chem, Kyoto 6158501, Japan

[2] PRESTO, Japan Sci & Technol Agcy, Saitama 3320012, Japan

来源：

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 2016年 / 22卷 / 01期

关键词：

Transient spectroscopy; polymer solar cells; exciton; singlet fission; geminate recombination; non-geminate recombination; EXTERNAL QUANTUM EFFICIENCY; TRIPLET EXCITON GENERATION; CHARGE GENERATION; SINGLET FISSION; BIMOLECULAR RECOMBINATION; DIFFUSION LENGTHS; THIN-FILMS; DYNAMICS; EXCITATION; MORPHOLOGY;

D O I：

10.1109/JSTQE.2015.2457615

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Time-resolved spectroscopy is a powerful tool for studying fundamental photophysics in optoelectronic materials on a molecular temporal scale. In this review, we describe transient spectroscopic studies on fundamental photovoltaic conversion processes in polymer solar cells, which consist of a series of conversion processes such as photon absorption, exciton diffusion into a donor/acceptor interface, charge transfer at the interface, charge dissociation into free charge carriers, and charge collection to each electrode. These conversion processes are ultrafast phenomena and are ranging over the wide temporal scale from femtoseconds to microseconds, which can be directly observed by transient spectroscopy.

引用

页码：100 / 111

页数：12

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