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Aqueous Phase Phosphorescence: Ambient Triplet Harvesting of Purely Organic Phosphors via Supramolecular Scaffolding
Author(s) -
Kuila Suman,
Rao K. Venkata,
Garain Swadhin,
Samanta Pralok K.,
Das Shubhajit,
Pati Swapan K.,
Eswaramoorthy Muthusamy,
George Subi J.
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201810823
Subject(s) - phosphorescence , phosphor , supramolecular chemistry , photochemistry , aqueous solution , amorphous solid , chemistry , materials science , fluorescence , organic chemistry , molecule , optoelectronics , physics , quantum mechanics
Ambient solution and amorphous state room temperature phosphorescence (RTP) from purely organic chromophores is rarely achieved. Remarkable stabilization of triplet excitons is realized to obtain deep red phosphorescence in water and in amorphous film state under ambient conditions by a unique supramolecular hybrid assembly between inorganic laponite clay and heavy atom core substituted naphthalene diimide (NDI) phosphor. Structural rigidity and oxygen tolerance of the inorganic template along with controlled molecular organization via supramolecular scaffolding are envisaged to alleviate the unprecedented aqueous phase phosphorescence.