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Title: Electrical and optical studies of corona poled 4-hydroxy-4-nitroazobenzene doped polymethylmethacrylate films
Authors: Kalra, Niraj
Chaturvedi, D K
Kumar, Sushil
Arora, Sanjiv
Keywords: Polymethylmethacrylate films;Electrical properties;Optical studies;Molecular polarizability;Birefringence
Issue Date: Jul-2007
Publisher: CSIR
IPC Code: C07B57/00
Abstract: Guest-host polymeric systems with 4-hydroxy-4'-nitroazobenzene as guest and polymethylmethacrylate (PMMA) as host have been prepared by taking different concentrations of the guest and characterized by observing their electrical and optical behaviour. The prepared guest-host system has been found to have large band gap ~2.86 eV and transmission over visible range. Pure polymer (PMMA) was not found to show any observable electrical non-linearity whereas mixing of dye (guest) has shown remarkable effect on its non-linear electrical behaviour. Moreover, the model guest-host blend (4-hydroxy-4'-nitroazobenzene/PMMA) has been found to exhibit desired order of non-linearity by optimizing the concentration of guest, poling current and poling temperature.
Page(s): 618-623
ISSN: 0019-5596
Appears in Collections:IJPAP Vol.45(07) [July 2007]

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