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Functional Hybrid Materials Derived from Natural Cellulose
자키로브,율다세프,조학동,이재춘,강태원,Jonibek Khamdamov,Abdugafur Mamadalimov 한국물리학회 2012 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.60 No.10
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 properties of the treated and coated fibers were characterized by using scanning electron microscopy (SEM), luminescence and I-V characteristics. The performance of fibers with MEH-PPV polymer as a coating component was investigated, and an excellent white-light emission that consisted of blue-, green-, and red-light-emitting bands was demonstrated. The I-V characteristics 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 upon light illumination, the current increased in both the forward and the reverse bias conditions which suggest that the photoresponse parameters for the heterojunction are better than they are for the composite alone.