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Paper Details

Paper Title
Bi2Se3 Sensitized ZnO Nanorod films for Improved Solar Cell Application
Abstract
We report the synthesis of Bi2Se3/ZnO heterostructures by using chemical bath deposition method. The synthesized Bi2Se3/ZnO heterostructures have been characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive X-ray analysis (EDX), UV-Visible spectroscopy. The crystal structures of Bi2Se3 and ZnO have been confirmed with crystallite sizes 18 nm and 26 nm respectively using XRD data. The nano particles (NPs) and nanorods (NR) like morphologies of Bi2Se3 and ZnO have been observed by using FESEM. The elemental compositions have been investigated using EDX. The optical band gaps for Bi2Se3/ZnO and ZnO have been estimated to be 2.47 eV and 3.20 eV from UV-Visible analysis data. The ZnO and Bi2Se3/ZnO electrodes have been studied for the solar cell application. Current densities of bare ZnO and Bi2Se3/ZnO electrodes have been measured as 0.45 mA-cm-2 and 1.45 mA-cm-2 whereas power conversion efficiencies are 0.08% and 0.31% respectively. The electrochemical impedance spectroscopy (EIS) studies of solar cells have been carried out to study the charge transportation.
KeyWord
Bi2Se3/ZnO, Heterostructures, CBD, Solar cells, Efficiency; FESEM.
Others Details
Paper Id : 49897
Author Name : GANGA SHEKAR PASUPULA
Co-Author Name(s) : R S MANE
Volume/Issue No : Volume 04 Issue 11
Page No : 171-177
DOI Number : DOI:10.21090/IJAERD.49897
Publication Date : 2017-11-12
License : This work is licensed under a Creative Commons Attribution 4.0 International License.
website : http://www.ijaerd.com/index.php
Impact Factor : 4.72, SJIF-2016
ISSN Details : eISSN: 2348-4470, pISSN:2348-6406