Enhanced Photovoltaic Performance of Polymer Hybrid Nanostructure Heterojunction Solar Cells Based on Poly(3-hexylthiophene)/ZnS/ZnO/Reduced Graphene Oxide Shell–Core Nanorod Arrays

Sookhakian, M. and Amin, Yusoff Mohd and Zakaria, Rozalina and Baradaran, S. and Mahmoudian, M.R. and Rezayi, M. and Tajabadi, M.T. and Basirun, Wan Jefrey (2014) Enhanced Photovoltaic Performance of Polymer Hybrid Nanostructure Heterojunction Solar Cells Based on Poly(3-hexylthiophene)/ZnS/ZnO/Reduced Graphene Oxide Shell–Core Nanorod Arrays. Industrial and Engineering Chemistry Research, 53 (37). pp. 14301-14309. ISSN 0888-5885

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Official URL: http://pubs.acs.org/doi/abs/10.1021/ie501677r

Abstract

A novel hybrid photoanode based on poly(3-hexylthiophene) (P3HT) modified ZnS/ZnO shell–core nanorod arrays was fabricated on indium tin oxide (ITO) modified reduced graphene oxide (rGO) film using a simple sequential electrodeposition process. The morphology and structure of the as-fabricated electrode were confirmed by X-ray diffraction, field emission electron microscopy, and high-resolution transmission electron microscopy. The electrochemical impedance spectroscopy and current–voltage curve measurements illustrated that the power conversion efficiency of the P3HT/ZnO nanorod arrays electrode was significantly improved by the formation of rGO film and type II band alignment in the heterostructure ZnS/ZnO shell–core nanorod arrays in the four-component P3HT/ZnS/ZnO/rGO electrode. On the basis of these results, P3HT as an excellent hole acceptor, ZnS as an electronic mediator, ZnO as an excellent electron acceptor and direct pathway, and rGO nanosheet as a superior conductive collector and transporter have been shown to have in total a significant effect on increasing photovoltaic efficiency.

Item Type: Article
Uncontrolled Keywords: Photovoltaic Performance; Polymer Hybrid Nanostructure Heterojunction Solar Cells; Poly(3-hexylthiophene); Graphene Oxide; Shell–Core Nanorod Arrays
Subjects: Q Science > Q Science (General)
Divisions: Faculty of Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 18 Jan 2015 12:34
Last Modified: 31 Jan 2019 07:34
URI: http://eprints.um.edu.my/id/eprint/12162

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