Strategy towards large two-photon absorption cross-sections for diketopyrrolopyrroles. Issue 4 (8th December 2014)

• Record Type: Journal Article
• Authors: Purc, Anna; Sobczyk, Krzysztof; Sakagami, Yusuke; Ando, Akihiro; Kamada, Kenji; Gryko, Daniel T.
• Is Part Of: Journal of materials chemistry. Volume 3:Issue 4(2015)
• Page Start: 742
• Page End: 749
• Publication Date: 2014-12-08
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c4tc02375g
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : Decorating diketopyrrolopyrroles with strongly electron-rich heterocycles led to donor–acceptor–donor architectures possessing two-photon brightness 850–1900 GM. Abstract : Three quadrupolar donor–acceptor–donor compounds bearing diketopyrrolopyrroles as a central core and exceptionally electron-rich diarylaminofurans and dialkylaminobenzofuran as donors were designed. Straightforward synthesis afforded these dyes in good overall yield. These donor–acceptor–donor systems turned out to be strong red-emitters with fluorescence extending well into the NIR region. Two-photon brightness (850–1900 GM) was found to be larger than for any previously studied diketopyrrolopyrrole dyes.