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Augmenting Photoinduced Charge Transport in a Single‐Component Gel System: Controlled In Situ Gel–Crystal Transformation at Room Temperature
Author(s) -
Satapathy Sitakanta,
Prabakaran Palani,
Prasad Edamana
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201800218
Subject(s) - triphenylamine , crystallinity , materials science , valence (chemistry) , supramolecular chemistry , dendrimer , photoluminescence , in situ , chemical physics , single crystal , crystallography , nanotechnology , chemistry , crystal structure , optoelectronics , polymer chemistry , organic chemistry , composite material
Smart single‐component materials with versatile functions require pre‐programming of a higher order molecular assembly. An electroactive supergelator (c=0.07 wt %) triphenylamine core‐appended poly(aryl ether) dendron (TPAPAE) is described, where substantial dendritic effects improve the order and crystallinity by switching the local minima from self‐assembled molecular wires to thermodynamically favorable global minima of ordered crystals, ripened within the fibers. Controlled in situ phase change at room temperature ultimately stabilized the mixed valence states in the single‐component supramolecular assembly with photoluminescence and photoinduced charge transport amplified by two orders of magnitude.