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Structure‐Dependent Fluorescence in Sexithiophene Single Crystals
Author(s) -
Horowitz Gilles,
Kouki Fayçal,
Kassmi Ahmed El,
Valat Pierre,
Wintgens Véronique,
Garnier Francis
Publication year - 1999
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(199903)11:3<234::aid-adma234>3.0.co;2-b
Subject(s) - photoluminescence , materials science , spectral line , fluorescence , crystal (programming language) , single crystal , emission spectrum , optoelectronics , chemical physics , crystallography , optics , chemistry , physics , computer science , astronomy , programming language
Communication: Sexithiophene (6T) is a promising material for organic‐based electronic devices and its photoluminescence spectra remain a topic of interest. 6T exhibits two different crystal forms, for which photoluminescence spectra and stimulated emission were measured at various temperatures. The authors observe a strong dependence of the spectra on crystal structure. Precise determination of the electronic transitions of both structures shows that most of the steady‐state photoluminescence arises from crystal defects.