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

journal article·2014-05

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

Advanced Materials· Volume 26· Issue 19

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Source abstract

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.

Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage Nanomaterials Electronic materials Catalysis & surfaces

OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Electrochemical sensors and biosensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Global GET‐Future Laboratory & Department of Advanced Materials Chemistry Korea University 2511 Sejong‐ro Sejong 339‐700 Korea

School of Energy and Chemical Engineering/Low‐Dimensional Carbon Materials Center Ulsan National Institute of Science and Technology (UNIST) 100 Banyeon Ulsan 689‐798 Korea

Nanotechnology Research Center & Department of Applied Life Science Konkuk University Chungju 380‐701 Korea

Department of Advanced Materials Chemistry Korea University 2511 Sejong‐ro Sejong 339‐700 Korea

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