Open AccessImprovement of the photoinduced birefringence in PAZO azopolymer doped with ZnO via electrospray deposition
Author(s) -
Georgi Mateev,
Г. Маринов,
Lian Nedelchev,
Dimazarova,
Elena Stoykova,
Tsvetanka Babeva
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1492/1/012041
Subject(s) - materials science , birefringence , deposition (geology) , electrospray , nanocomposite , doping , thin film , pulsed laser deposition , nanoparticle , optoelectronics , analytical chemistry (journal) , nanotechnology , optics , mass spectrometry , chemistry , chromatography , paleontology , physics , sediment , biology
We present a study of the birefringence photoinduced in thin nanocomposite films of an azopolymer (PAZO) doped with different concentrations of nanoparticles (NPs) of ZnO with spherical shape and size in the range 40 – 100 nm. The nanocomposite thin films were prepared by electrospray deposition of ZnO over a thin azopolymer film with a thickness below 200 nm. The different NPs concentrations were obtained through different electrospray deposition times varied from 0 to 10 minutes. Birefringence was induced by a He-Cd laser at a wavelength of 442 nm and measured by a probe diode pumped solid state (DPSS) laser at 635 nm. The birefringence dependence on the ZnO NP deposition time reached its maximum for a deposition time of 90 s.