Graphene Nanoplatelets Doped with N at its Edges as Metal‐Free Cathodes for Organic Dye‐Sensitized Solar Cells. (12th February 2014)

• Record Type: Journal Article
• Authors: Ju, Myung Jong; Jeon, In‐Yup; Kim, Jae Cheon; Lim, Kimin; Choi, Hyun‐Jung; Jung, Sun‐Min; Choi, In Taek; Eom, Yu Kyung; Kwon, Young Jin; Ko, Jaejung; Lee, Jae‐Joon; Kim, Hwan Kyu; Baek, Jong‐Beom
• Is Part Of: Advanced materials. Volume 26:Number 19(2014)
• Page Start: 3055
• Page End: 3062
• Publication Date: 2014-02-12
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201304986
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="adma201304986-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Challenging precious Pt‐based electrocatalysts</bold> 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. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgh2sww9qb" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>