Strategy towards large two-photon absorption cross-sections for diketopyrrolopyrroles

Autor:	Akihiro Ando, Anna Purc, Daniel T. Gryko, Krzysztof Sobczyk, Kenji Kamada, Yusuke Sakagami
Rok vydání:	2015
Předmět:	Brightness Materials science Yield (chemistry) Materials Chemistry Organic chemistry General Chemistry Photochemistry Two-photon absorption Fluorescence
Zdroj:	Journal of Materials Chemistry C. 3:742-749
ISSN:	2050-7534 2050-7526
DOI:	10.1039/c4tc02375g
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9132b61716343a2d449128f30118e59c https://doi.org/10.1039/c4tc02375g Zobrazit plný text záznamu