Bi2Se3 Sensitized ZnO Nanorod films for Improved Solar Cell Application
| Author(s) | : | Ganga Shekar Pasupula, R. S. Mane |
| Institution | : | Centre for Nanomaterials & Energy Devices, School of Physical Sciences,SRTM University, 431606 Nanded, India |
| Published In | : | Vol. 4, Issue 11 — November 2017 |
| Page No. | : | 171-177 |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
We report the synthesis of Bi2Se3/ZnO heterostructures by using chemical bath deposition method. Thesynthesized Bi2Se3/ZnO heterostructures have been characterized by X-ray diffraction (XRD), field emission scanningelectron microscopy (FESEM), energy dispersive X-ray analysis (EDX), UV-Visible spectroscopy. The crystal structuresof Bi2Se3 and ZnO have been confirmed with crystallite sizes 18 nm and 26 nm respectively using XRD data. The nanoparticles (NPs) and nanorods (NR) like morphologies of Bi2Se3 and ZnO have been observed by using FESEM. Theelemental compositions have been investigated using EDX. The optical band gaps for Bi2Se3/ZnO and ZnO have beenestimated to be 2.47 eV and 3.20 eV from UV-Visible analysis data. The ZnO and Bi2Se3/ZnO electrodes have beenstudied for the solar cell application. Current densities of bare ZnO and Bi2Se3/ZnO electrodes have been measured as0.45 mA-cm-2and 1.45 mA-cm-2 whereas power conversion efficiencies are 0.08% and 0.31% respectively. Theelectrochemical impedance spectroscopy (EIS) studies of solar cells have been carried out to study the chargetransportation.
Ganga Shekar Pasupula, R. S. Mane, “Bi2Se3 Sensitized ZnO Nanorod films for Improved Solar Cell Application”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 11, pp. 171-177, November 2017.
