Synthesis and Photovoltaic Effect in Dithieno[2, 3‐d:2′, 3′‐d′]Benzo[1, 2‐b:4, 5‐b′]dithiophene‐Based Conjugated Polymers. (19th November 2012)

• Record Type: Journal Article
• Authors: Son, Hae Jung; Lu, Luyao; Chen, Wei; Xu, Tao; Zheng, Tianyue; Carsten, Bridget; Strzalka, Joseph; Darling, Seth B.; Chen, Lin X.; Yu, Luping
• Is Part Of: Advanced materials. Volume 25:Number 6(2013)
• Page Start: 838
• Page End: 843
• Publication Date: 2012-11-19
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201204238
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Conjugated polymers based on a heteroacene, 3, 7‐dialkyl‐dithieno[2, 3‐<italic>d</italic>:2′, 3′‐<italic>d</italic>′]benzo[1, 2‐<italic>b</italic>:4, 5‐<italic>b</italic>′]dithiophene (DBD), are synthesized.</bold> These polymers show broad UV–vis absorption with energy bandgaps below 1.7 eV. PTDBD2, showing good miscibility in a polymer/phenyl‐C71‐butyric acid methyl ester (PC₇₁BM) blend film, achieves a power conversion efficiency (PCE) of 7.6%. The results indicate that copolymers containing DBD are promising candidates for high‐performance organic solar cells. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg1ts4cb8n" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>