Volume 25 Issue 03
Mar.  2013
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Qu Yufeng, Xu Liang, Sun Lianlai, et al. Photoluminescence properties of carbazole compounds[J]. High Power Laser and Particle Beams, 2013, 25: 615-619. doi: 10.3788/HPLPB20132503.0615
Citation: Qu Yufeng, Xu Liang, Sun Lianlai, et al. Photoluminescence properties of carbazole compounds[J]. High Power Laser and Particle Beams, 2013, 25: 615-619. doi: 10.3788/HPLPB20132503.0615

Photoluminescence properties of carbazole compounds

doi: 10.3788/HPLPB20132503.0615
  • Received Date: 2012-05-30
  • Rev Recd Date: 2012-10-28
  • Publish Date: 2013-03-05
  • Poly[bis(6-carbazolhexyloxy)]phosphazene with good thermal stability(about 290 ℃) and a low glass transition temperature(about 36 ℃) was synthesized with N-(6-hydroxyhexyl)carbazole and linear polydichlorophosphazene. Steady state fluorescence spectra elucidated that the maximum fluorescence-emission wavelengths of carbazole, N-(6-hydroxyhexyl)carbazole and poly[bis(6-carbazolhexyloxy)]phosphazene are 420, 410, and 393 nm, respectively. The fluorescence intensity of N-(6-hydroxyhexyl)carbazole and poly[bis(6-carbazolhexyloxy)]phosphazene decreases orderly and has a blue-shift compared with carbazole. The transient fluorescence spectra show that the linear backbone and the isolated d-p hybrid orbital of polyphosphazene might increase steric hindrance and disrupt the previous conjugate system, leading to decrease of the fluorescence lifetime of poly[bis(6-carbazolhexyloxy)]phosphazene at several emission wavelengths.
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