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Self-Assembled Poly(3,4-ethylene dioxythiophene):Poly(styrenesulfonate)/Graphene Quantum Dot Organogels for Efficient Charge Transport in Photovoltaic Devices

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Title
Self-Assembled Poly(3,4-ethylene dioxythiophene):Poly(styrenesulfonate)/Graphene Quantum Dot Organogels for Efficient Charge Transport in Photovoltaic Devices
Author
Lim, Hong ChulMin, Sa HoonLee, EunwooJang, JyongsikKim, Sung HyunHong, Jong-In
Issue Date
2015-06
Publisher
AMER CHEMICAL SOC
Citation
ACS APPLIED MATERIALS & INTERFACES, v.7, no.21, pp.11069 - 11073
Abstract
We report the self-assembly of poly(3,4-ethylene dioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) organogel films incorporating graphene quantum dots (GQDs). Because of the electrostatic interaction between the GQDs and the PEDOT chains, GQD@PEDOT core-shell nanostructures are readily formed. We demonstrate that the GQDs affect the reorientation of PEDOT chains and the formation of interconnected structure of PEDOT-rich domains, improving the charge transport pathway. The power conversion efficiency of the organic photovoltaic device containing the self-assembled organogel as the hole extraction layer (HEL) was 26% higher than the device with pristine PEDOT-PSS as the HEL
URI
https://scholarworks.unist.ac.kr/handle/201301/17063
URL
http://pubs.acs.org/doi/abs/10.1021/acsami.5b02434
DOI
10.1021/acsami.5b02434
ISSN
1944-8244
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