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Baek, Jong-Beom
Center for Dimension-Controllable Organic Frameworks
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Graphene Nanoplatelets Doped with N at its Edges as Metal-Free Cathodes for Organic Dye-Sensitized Solar Cells

Author(s)
Ju, Myung-JongJeon, In-YupKim, Jae CheonLim, KiminChoi, Hyun-JungJung, Sun-MinChoi, In TaekEom, Yu KyungKwon, Young JinKo, JaejungLee, Jae-JoonKim, Hwan KyuBaek, Jong-Beom
Issued Date
2014-05
DOI
10.1002/adma.201304986
URI
https://scholarworks.unist.ac.kr/handle/201301/4109
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84901061075
Citation
ADVANCED MATERIALS, v.26, no.19, pp.3055 - 3062
Abstract
Challenging precious Pt-based electrocatalysts for dye-sensitized solar cells (DSSCs), graphene nanoplatelets that are N-doped at the edges (NGnPs) are prepared via simply ball-milling graphite in the presence of nitrogen gas. DSSCs based on specific nanoplatelets designated "NGnP5" display superior photovoltaic performance (power conversion efficiency, 10.27%) compared to that of conventional Pt-based devices (9.96%). More importantly, the NGnP counter electrode exhibits outstanding electrochemical stability and electrocatalytic activity with a cobalt-complex redox couple.
Publisher
WILEY-V C H VERLAG GMBH
ISSN
0935-9648

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