Electrochemical and photoelectrochemical study of gallium arsenide–polybithiophene composite

Improvement of photoelectrochemical and optical characteristics of MEH-PPV using titanium dioxide nanoparticles

“…This response indicates that recombination processes are occurring in the film, probably due to the presence of charge carriers in the polymer bulk, mainly due to structural disorder. Our results are in agreement with the conducting behavior of p-type polymers [16,38,39]. This response indicates that the presence of charge carriers in the polymer film, Table 1 Root mean square (RMS) and average roughness (RA) of (a,b) MEH-PPV and (c,d) MEH-PPV þTiO 2 (8%) determined from AFM characterization of the films shown in Fig.…”

“…Nanoparticles of a variety of inorganic materials such as CdSe [8][9][10], CdTe [11,12], silicon [13,14], InP [15], GaAs [16] and PbS [17,18] have been studied intensively for use in hybrid BHJ solar and photoelectrochemical cells. In particular, hybrid BHJs comprising transition metal oxide compounds and organic semiconductors have shown promising results.…”

Electrochemical copolymerization of N-methylpyrrole and 2,2′-bithitiophene; characterization, micro-capacitor study, and equivalent circuit model evaluation

“…Polybithiophene (PBTh), which is the simplest conducting polymer of the thiophene derivatives, is easily polymerized by the electrochemical technique (Zhang et al 2001;Vu et al 2005). The electropolymerization of bithiophene (BTh) often results in PBTh films with a more structurally ordered polymer (Diagne et al 2007) and compact structures (Elhames et al 2009). The potential of the polymerization of bithiophene is lower than that of thiophene.…”

Preparation and electrochemical behaviour of PPy–CdS composite films

“…The incorporation of semiconducting nanoparticles in polymeric matrices has also been reported in the literature with various applications in mind [16][17][18][19][20]. The conducting polymer coating, on narrow-band semiconductor photoelectrodes was proposed as a means to avoid photocorrosion in the early work on photoelectrochemical cells [21,22].…”