Abstract
AbstractResearch of purely organic room‐temperature phosphorescence (RTP) materials has been a hot topic, especially for those with stimulus response character. Herein, an abnormal stimulus‐responsive RTP effect is reported, in which, purely organic luminogen of Czs‐ph‐3F shows turn‐on persistent phosphorescence under grinding. Careful analyses of experimental results, coupled with the theoretical calculations, show that the transition of molecular conformation from quasi‐axial to quasi‐equatorial of the phenothiazine group should be mainly responsible for this exciting result. Furthermore, the applications of stylus printing and thermal printing are both successfully realized, based on the unique RTP effect of Czs‐ph‐3F.
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