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Photoactive Organic/Inorganic Hybrid Materials with Nanosegregated Donor–Acceptor Arrays
Author(s) -
Zhu Xiaolei,
Hessin Cheriehan,
Salamé Aude,
SosaVargas Lydia,
Kreher David,
Adachi Chihaya,
Proust Anna,
Mialane Pierre,
Marrot Jérome,
Bouchet Aude,
Sliwa Michel,
Méry Stéphane,
Heinrich Benoît,
Mathevet Fabrice,
Izzet Guillaume
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202014319
Subject(s) - photoluminescence , lamellar structure , acceptor , polyoxometalate , materials science , intramolecular force , supramolecular chemistry , hybrid material , carbazole , thiophene , photochemistry , solid state , chemistry , crystallography , nanotechnology , organic chemistry , optoelectronics , crystal structure , physics , condensed matter physics , catalysis
The synthesis of the first mesogenic donor‐acceptor polyoxometalate (POM)‐based hybrid is herein described. The structural and electronic properties of the hybrid compound were evaluated through combination of small‐ and wide‐angle X‐ray scattering, optical microscopy, electrochemistry and photoluminescence. In the solid state, the compound behaves as a birefringent solid, displaying a lamellar organization in which double‐layers of POMs and bis(thiophene)thienothiophene organic donors alternate regularly. Noticeably, the sub‐unit organizations in the composite are similar to that observed for the individual POM and organic donor precursors. Photophysical studies show that in the hybrid, the fluorescence of the organic donor unit is considerably quenched both in solution and in the solid state, which is attributed to occurrence of intramolecular charge‐separated state.