| Title: | Crystallization-induced emission enhancement in a phosphorus-containing heterocyclic luminogen |
| Author(s): | Qian L; Tong B; Shen J; Shi J; Zhi J; Dong Y; Yang F; Dong Y; Lam JW; Liu Y; Tang BZ; |
| Address: | "College of Materials Science and Engineering and College of Science, Beijing Institute of Technology (BIT), 5 South Zhongguancun Street, Beijing 100081, China" |
| ISSN/ISBN: | 1520-6106 (Print) 1520-5207 (Linking) |
| Abstract: | "Whereas aggregation often quenches luminescence, the emission of a heterocyclic luminogen, 10-[2,5-bis(4-pentyloxyphenylcarbonyloxy)phenyl]-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (3), is greatly enhanced by aggregate formation. Crystallization further boosts the emission of 3, turning it from a weak emitter in the solution state to a strong emitter in the crystalline state. The emission of 3 is changed in response to the exposure to vapors of volatile organic compounds (VOCs). The morphology of the thin film of 3 is reversibly and repeatedly modulated between amorphous and crystalline phases by simple fuming-heating and heating-cooling cycles, leading to an emission switching between bright and dark states. The novel attributes of the crystallization-induced emission enhancement, the VOC-responsive emission change, and the morphology-tunable emission switching of 3 could enable it to find applications in an array of technological areas, including chemosensing, optical display, and rewritable information storage" |
| Notes: | "PubMed-not-MEDLINEQian, Lijun Tong, Bin Shen, Jinbo Shi, Jianbing Zhi, Junge Dong, Yongqiang Yang, Fan Dong, Yuping Lam, Jacky W Y Liu, Yang Tang, Ben Zhong eng 2009/06/16 J Phys Chem B. 2009 Jul 9; 113(27):9098-103. doi: 10.1021/jp900665x" |
