The Effect of Processing Additives on Energetic Disorder in Highly Efficient Organic Photovoltaics: A Case Study on PBDTTT‐C‐T:PC71BM. (27th May 2015)

• Record Type: Journal Article
• Authors: Gao, Feng; Himmelberger, Scott; Andersson, Mattias; Hanifi, David; Xia, Yuxin; Zhang, Shaoqing; Wang, Jianpu; Hou, Jianhui; Salleo, Alberto; Inganäs, Olle
• Is Part Of: Advanced materials. Volume 27:Number 26(2015)
• Page Start: 3868
• Page End: 3873
• Publication Date: 2015-05-27
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201405913
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="adma201405913-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Energetic disorder</bold>, an important parameter affecting the performance of organic photovoltaics, is significantly decreased upon the addition of processing additives in a highly efficient benzodithiophene‐based copolymer blend (PBDTTT‐C‐T:PC₇₁BM). Wide‐angle and small‐angle X‐ray scattering measurements suggest that the origin of this reduced energetic disorder is due to increased aggregation and a larger average fullerene domain size together with purer phases. <graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgj1m9241qf" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> </abstract>