Solid fluorescence plays an important role in optoelectronic devices. In this paper, 9,10-bis(6-dimethylamino benzoxazole styryl)-anthracene (1) was synthesized. 1 displayed a strong emission in solid state (micro crystalline state, amorphous solid state and polymeric thin film) resulted from aggregation-induced emission mechanism, and a large absolute fluorescence quantum yield (phi r = 0.65) was obtained. 1 also exhibited up conversion emission in solid state and a strong yellow emission was observed upon excitation with 800-1064 nm, the quadratic dependence of the fluorescence on the excitation laser intensity confirmed that the up-conversion emission resulted from two-photon process.
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Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem