Singlet Fission of Non-polycyclic Aromatic Molecules in Organic Photovoltaics

So Kawata; Yong Jin Pu; Ayaka Saito; Yuki Kurashige; Teruo Beppu; Hiroshi Katagiri; Masaki Hada; Junji Kido

doi:10.1002/adma.201504281

Singlet Fission of Non-polycyclic Aromatic Molecules in Organic Photovoltaics

So Kawata, Yong Jin Pu, Ayaka Saito, Yuki Kurashige, Teruo Beppu, Hiroshi Katagiri, Masaki Hada, Junji Kido

Graduate School of Natural Science and Technology

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

Singlet fission of thienoquinoid compounds in organic photovoltaics is demonstrated. The escalation of the thienoquinoid length of the compounds realizes a suitable packing structure and energy levels for singlet fission. The magnetic-field dependence of the photocurrent and the external quantum efficiency of the devices reveal singlet fission of the compounds and dissociation of triplet excitons into charges.

Original language	English
Pages (from-to)	1585-1590
Number of pages	6
Journal	Advanced Materials
Volume	28
Issue number	8
DOIs	https://doi.org/10.1002/adma.201504281
Publication status	Published - Feb 24 2016

Keywords

multiple carrier generation
organic photovoltaics
singlet fission
thienoquinoidal compounds

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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AU - Kawata, So

AU - Pu, Yong Jin

AU - Saito, Ayaka

AU - Kurashige, Yuki

AU - Beppu, Teruo

AU - Katagiri, Hiroshi

AU - Hada, Masaki

AU - Kido, Junji

PY - 2016/2/24

Y1 - 2016/2/24

N2 - Singlet fission of thienoquinoid compounds in organic photovoltaics is demonstrated. The escalation of the thienoquinoid length of the compounds realizes a suitable packing structure and energy levels for singlet fission. The magnetic-field dependence of the photocurrent and the external quantum efficiency of the devices reveal singlet fission of the compounds and dissociation of triplet excitons into charges.

AB - Singlet fission of thienoquinoid compounds in organic photovoltaics is demonstrated. The escalation of the thienoquinoid length of the compounds realizes a suitable packing structure and energy levels for singlet fission. The magnetic-field dependence of the photocurrent and the external quantum efficiency of the devices reveal singlet fission of the compounds and dissociation of triplet excitons into charges.

KW - multiple carrier generation

KW - organic photovoltaics

KW - singlet fission

KW - thienoquinoidal compounds

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