MEH-PPV/CdS Hybrid Nanowire Polymer Solar Cell Array
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One-dimensional ordered hybrid pn-junction solar cell devices of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and cadmium sulphide (CdS) were fabricated. CdS nanowires were synthesized with alumina membrane by using potentiostatic electrodeposition. The CdS nanowire template was dissolved in sodium hydroxide to obtain the vertically aligned nanowires. The solar cell devices were characterized to study the optical, morphological and optoelectronic properties. The absorption curve revealed that the CdS nanowire and MEH-PPV have complementary absorption spectra leading to an increase in the absorption intensity for the composite system. The photoluminescence peaks of CdS nanowires were found to be quenched because of the overlapping between polymer absorption and CdS emission. The devices characterized under illumination condition at input intensity, 100 mW/cm2 showed short circuit current density, open circuit voltage, fill factor and power conversion efficiency ~ 16 mA/cm2, 660 mV, 50% and 3.9%, respectively.
KeywordsCdS nanowire photoluminescence UV–visible solar cell
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The author would like to acknowledge the financial support received from Science and Engineering Research Board (SERB) by Extra Mural research Grant Ref. No. EMR/2016/007769.
- 12.S. Chaure, J. Mater. Sci.: Mater. Electron. 28, 2 (2016).Google Scholar