Graphene nanoplatelets doped with N at its edges as metal-free cathodes for organic dye-sensitized solar cells

Myung Jong Ju; In Yup Jeon; Jae Cheon Kim; Kimin Lim; Hyun Jung Choi; Sun Min Jung; In Taek Choi; Yu Kyung Eom; Young Jin Kwon; Jaejung Ko; Jae Joon Lee; Hwan Kyu Kim; Jong Beom Baek

doi:10.1002/adma.201304986

Graphene nanoplatelets doped with N at its edges as metal-free cathodes for organic dye-sensitized solar cells

Myung Jong Ju
, In Yup Jeon
, Jae Cheon Kim
, Kimin Lim
, Hyun Jung Choi
, Sun Min Jung
, In Taek Choi
, Yu Kyung Eom
, Young Jin Kwon
, Jaejung Ko
, Jae Joon Lee
, Hwan Kyu Kim
, Jong Beom Baek

Department of Energy and Materials Engineering

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

138 Scopus citations

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.

Original language	English
Pages (from-to)	3055-3062
Number of pages	8
Journal	Advanced Materials
Volume	26
Issue number	19
DOIs	https://doi.org/10.1002/adma.201304986
State	Published - 21 May 2014

Keywords

electrocatalysts
electrode materials
graphene
nanoplatelets
solar cells

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/adma.201304986

Cite this

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title = "Graphene nanoplatelets doped with N at its edges as metal-free cathodes for organic dye-sensitized solar cells",

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.",

keywords = "electrocatalysts, electrode materials, graphene, nanoplatelets, solar cells",

author = "Ju, \{Myung Jong\} and Jeon, \{In Yup\} and Kim, \{Jae Cheon\} and Kimin Lim and Choi, \{Hyun Jung\} and Jung, \{Sun Min\} and Choi, \{In Taek\} and Eom, \{Yu Kyung\} and Kwon, \{Young Jin\} and Jaejung Ko and Lee, \{Jae Joon\} and Kim, \{Hwan Kyu\} and Baek, \{Jong Beom\}",

year = "2014",

month = may,

day = "21",

doi = "10.1002/adma.201304986",

language = "English",

volume = "26",

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journal = "Advanced Materials",

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publisher = "Wiley-Blackwell",

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T1 - Graphene nanoplatelets doped with N at its edges as metal-free cathodes for organic dye-sensitized solar cells

AU - Ju, Myung Jong

AU - Jeon, In Yup

AU - Kim, Jae Cheon

AU - Lim, Kimin

AU - Choi, Hyun Jung

AU - Jung, Sun Min

AU - Choi, In Taek

AU - Eom, Yu Kyung

AU - Kwon, Young Jin

AU - Ko, Jaejung

AU - Lee, Jae Joon

AU - Kim, Hwan Kyu

AU - Baek, Jong Beom

PY - 2014/5/21

Y1 - 2014/5/21

N2 - 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.

AB - 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.

KW - electrocatalysts

KW - electrode materials

KW - graphene

KW - nanoplatelets

KW - solar cells

UR - https://www.scopus.com/pages/publications/84901061075

U2 - 10.1002/adma.201304986

DO - 10.1002/adma.201304986

M3 - Article

AN - SCOPUS:84901061075

SN - 0935-9648

VL - 26

SP - 3055

EP - 3062

JO - Advanced Materials

JF - Advanced Materials

IS - 19

ER -

Graphene nanoplatelets doped with N at its edges as metal-free cathodes for organic dye-sensitized solar cells

Abstract

Keywords

UN SDGs

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