Wiley, Angewandte Chemie International Edition, 41(48), p. 7608-7611, 2009
Wiley, Angewandte Chemie, 41(121), p. 7744-7747, 2009
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Solidarity means strength: In new silole luminogens, the solid aggregates are stronger emitters than isolated molecules. The solid-state emission is tunable by varying molecular structures of the luminogens. Increasing bulkiness of the substituents weakens intermolecular interactions and restricts intramolecular rotations, leading to a blue shift in emission color and a great increase in emission efficiency (see examples in picture).