Light-induced changes of optical and electrical properties in bent-core azo compounds.

  title={Light-induced changes of optical and electrical properties in bent-core azo compounds.},
  author={Antal J{\'a}kli and Vinod Prasad and Doddamane S. Shankar Rao and Guangxun Liao and Istv{\'a}n J{\'a}nossy},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={71 2 Pt 1},
We have studied the optical and electrical properties of two bent-core substances with an azo linkage in their cores. Pump-probe laser studies, direct textural observations, and spectrophotometric recordings show an initial decrease of light transmission, which at larger light intensities (approximately 1 mW/mm2) is followed by a bleaching. Simultaneously the electrical properties (electric conductivity, antiferroelectric polarization, switching threshold, and switching time) decreased… 

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