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Euroasian Journal of Semiconductors Science and Engineering

Euroasian Journal of Semiconductors Science and Engineering

Abstract

In this paper, we report a study on the optical and the electrical properties of pure cotton fibers (CF) from chemically surface- and morphology-modified samples coated with poly [2-methoxy-5-(2-ethylhexyloxy)- 1,4-phenylenevinylene] (MEH-PPV) polymer by using a dip-coating method. The efficiency of white light luminescence of cotton fibers coated with meh- MEH-PPV polymer increased and became much more intense in comparison with the luminescence of uncoated fibers and blue, green and red stripes were observed in the luminescence structure. The сurrent-voltage characteristic of sandwich-type devices consisting of successive layers of ITO (Indium doped tin oxide coated glass)-PEDOT-PSS (Poly (3,4-ethylenedioxythiophene)-Poly(styrenesulfonate)-CF/MEH-PPV-Ag showed that up on light illumination, the current increased in both the forward and the reverse bias conditions which suggest that the photo response parameters for the heterojunction are better than they are for the composite alone.

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