Solar Cells: Fine‐Tuning the 3D Structure of Nonfullerene Electron Acceptors Toward High‐Performance Polymer Solar Cells (Adv. Mater. 21/2015). (June 2015)

• Record Type: Journal Article
• Authors: Li, Haiyan; Hwang, Ye‐Jin; Courtright, Brett A. E.; Eberle, Frank N.; Subramaniyan, Selvam; Jenekhe, Samson A.
• Is Part Of: Advanced materials. Volume 27:Number 21(2015)
• Page Start: 3340
• Page End: 3340
• Publication Date: 2015-06
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201570147
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="adma201570147-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>On page 3266, S. A. Jenekhe and co‐workers present a series of new tetraazabenzodifluoranthene diimide dimers with arylene linkers allowing the 3D molecular structure of these nonfullerene electron acceptors to be tuned, which results in a dramatic variation of the power conversion efficiency from 2.6% to 6.4% as the twist angle between the monomeric building blocks in the dimer is varied. The design illustrates background rainbow sunlight illuminating a polymer solar cell active layer composed of conjugated donor polymer chains and these new nonfullerene electron‐acceptor molecules, resulting in electricity generation that flows through connecting wires to power a light bulb. <graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgjqk1cp3v" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> </abstract>