Abstract
In this paper, we report a study on the optical and electrical properties of pure cotton fibers from chemically surface and morphology modified and coated with poly [2-methoxy-5-(2-ethylhexyloxy)-1, 4-phenylenevinylene] (MEH-PPV) polymer samples by the dip-coating method. The treated and coated fibers properties were characterized by using scanning electron microscopy (SEM), photoluminescence, and I–V characteristics. The performance of fibers with the MEH-PPV polymer as a coating component was investigated and an excellent white-light emission which consists of blue-, green-, and red-light-emitting bands was demonstrated. I–V characteristics of the sandwich-type devices consisting of successive layers of ITO–PEDOT-PSS- CF/MEH-PPV–Ag show that upon light illumination the current increases in both the forward and reverse bias conditions which suggest that the photoresponse parameters for the heterojunction are better than the composite alone.
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