Donor–Acceptor Alternating Copolymer Nanowires for Highly Efficient Organic Solar Cells. (30th July 2014)

• Record Type: Journal Article
• Authors: Lee, Jaewon; Jo, Sae Byeok; Kim, Min; Kim, Heung Gyu; Shin, Jisoo; Kim, Haena; Cho, Kilwon
• Is Part Of: Advanced materials. Volume 26:Number 39(2014)
• Page Start: 6706
• Page End: 6714
• Publication Date: 2014-07-30
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201401203
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="adma201401203-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>A donor–acceptor conjugated copolymer</bold> enables the formation of nanowire systems that can be successfully introduced into bulk‐heterojunction organic solar cells. A simple binary solvent mixture that makes polarity control possible allows kinetic control over the self‐assembly of the crystalline polymer into a nanowire structure during the film‐forming process. The enhanced photoconductivity of the nanowire‐embedded photoactive layer efficiently facilitates photon harvesting in the solar cells. The resultant maximum power conversion efficiency is 8.2% in a conventional single‐cell structure, revealing a 60% higher performance than in devices without nanowires. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgh2cgh07bt" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>