Achieving Persistent Room Temperature Phosphorescence and Remarkable Mechanochromism from Pure Organic Luminogens

Yongyang Gong; Gan Chen; Qian Peng; Wang Zhang Yuan; Yujun Xie; Shuhong Li; Yongming Zhang; Ben Zhong Tang

doi:10.1002/adma.201502442

Abstract

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Persistent room temperature phosphorescence (RTP) from pure organic luminogens can be rationally realized based on the crystallization-induced phosphorescence phenomenon and severe crystallization. A perfect crystal with dense molecular packing and effective inter-molecular interactions isolates the triplet excitons from quenching sites and significantly blocks the high-energy vibrational dissipation, thus yielding long-lasting RTP.

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Abstract

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