Photoinduced orientational dynamics of azophenylcarbazole molecules in polycarbonate
- Publication Type:
- Journal Article
- Citation:
- Dyes and Pigments, 2012, 92 (3), pp. 1204 - 1211
- Issue Date:
- 2012-03-01
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| 1-s2.0-S0143720811002348-main.pdf | Published Version | 694.95 kB |
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The synthesis and new optical features of four azophenylcarbazoles are described. All-optical poling of the azophenylcarbazoles with different donor groups was investigated. The highest optical poling efficiency (χ( 2)≃0.72pm/V) was measured for relative larger molecules (branched). Parameters describing mobility of the azophenylcarbazoles (orientational diffusion coefficient vary from 2.2 × 10-5 s-1 to 8 × 10-5 s-1) were extracted using an adopted model. Photoinduced erasure while reading the poled media turned out to be more pronounced for less developed structures (less branched donor). Different polymer materials were investigated as the host matrix for the most interesting azophenylcarbazole molecule. © 2011 Elsevier Ltd. All rights reserved.
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