Structural Control of the Photoluminescence of Silole Regioisomers and Their Utility as Sensitive Regiodiscriminating Chemosensors and Efficient Electroluminescent Materials
The Journal of Physical Chemistry B2005Vol. 109(20), pp. 10061–10066
Citations Over TimeTop 10% of 2005 papers
Zhen Li, Yongqiang Dong, Baoxiu Mi, Youhong Tang, Matthias Häußler, Hui Tong, Yuping Dong, Jacky W. Y. Lam, Yan Ren, Herman H. Y. Sung, Kam Sing Wong, Ping Gao, Ian D. Williams, Hoi Sing Kwok, Ben Zhong Tang
Abstract
We synthesized a group of silole regioisomers 1(x,y), whose photoluminescence varied dramatically with its regiostructure. By internally hindering the intramolecular rotation, we succeeded in creating a novel silole (1(3,4)) that is strongly luminescent in solutions and whose fluorescence quantum yield in acetone is as high as 83%. We revealed that 1(3,4) was a sensitive chemosensor capable of optically discriminating nitroaromatic regioisomers of p-, o-, and m-nitroanilines. Against general belief, crystal formation of 1(2,4) blue-shifted its emission color and boosted its emission efficiency. The light-emitting diode based on the crystal of 1(2,4) emitted a strong blue light (464 nm) in a high current efficiency (5.86 cd/A).
Related Papers
- → Principle and application of inorganic Electroluminescence and organic Electroluminescence(2011)3 cited
- → Understanding electroluminescence from thin silicon dioxide films(2000)7 cited
- → Nature of weak inter-and intramolecular interactions in crystals 8. Influence of intermolecular contacts on the strength of intramolecular O-H...N bonds in crystals of 3-(2-hydroxyphenyl)-1,2,4-triazoles(2006)3 cited
- → <title>Electroluminescent effects and the possibility of their practical applications</title>(1998)
- → Electrical and Optical Properties of Electroluminescent Capacitors Based on ZnS:Cu(1968)