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- Title
An Electron-Accepting Chromophore Based on Fluorene and Naphthalenediimide Building Blocks for Solution-Processable Bulk Heterojunction Devices.
- Authors
Gupta, Akhil; Wang, Xizu; Srivani, Doli; Alford, Ben; Chellappan, Vijila; Bilic, Ante; Patil, Hemlata; Jones, Lathe A.; Bhosale, Sidhanath V.; Sonar, Prashant; Bhosale, Sheshanath V.
- Abstract
We have designed, synthesized and utilized a new non-fullerene electron acceptor, 9,9′-(9,9-dioctyl-9 H-fluorene-2,7-diyl)bis(2,7-dioctyl-4-(octylamino)benzo[ lmn][3,8]phenanthroline-1,3,6,8(2 H,7 H)-tetraone) ( B2), for use in solution-processable bulk-heterojunction devices. B2 is based on a central fluorene moiety, which was capped at both ends with an electron-accepting naphthalenediimide functionality. B2 exhibited excellent solubility (>30 mg mL−1 in chloroform), high thermal and photochemical stability, and appropriate energy levels for use with the classical polymer donor regioregular poly(3-hexylthiophene). A power conversion efficiency of 1.16 % was achieved for primitive bulk-heterojunction devices with a high fill factor of approximately 54 %.
- Subjects
HETEROJUNCTIONS; CHROMOPHORES; FLUORENE; NAPHTHALENE; ELECTROPHILES; SOLAR cells; FULLERENES
- Publication
Asian Journal of Organic Chemistry, 2015, Vol 4, Issue 8, p800
- ISSN
2193-5807
- Publication type
Article
- DOI
10.1002/ajoc.201500112