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Characteristics of Photo Electrodes Based on TiO2 Nanoparticles, Nanotubes and Microspheres for Dye Solar Cell

Mathew, Ambily and Rao, Mohan G and Munichandraiah, N (2013) Characteristics of Photo Electrodes Based on TiO2 Nanoparticles, Nanotubes and Microspheres for Dye Solar Cell. In: SCIENCE OF ADVANCED MATERIALS, 5 (6). pp. 583-591.

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Official URL: http://dx.doi.org/10.1166/sam.2013.1492

Abstract

We have analyzed the characteristics of electrodes made of TiO2 nanotubes, microspheres and commercially available nanoparticles for dye sensitized solar cell. The morphology of the electrodes and the formation of aggregates have been analyzed by scanning electron microscopy and surface profiling technique. The concentration of Ti3+ type impurity state on the surface of these electrodes is quantified by X-ray photoelectron spectroscopy. Micro structural properties have been characterized by Brunauer, Emmett and Teller method The optical properties of the electrodes such as band gap energy, the type of band formation and the diffuse reflectance are evaluated by UV-Visible spectroscopy. The photovoltaic characteristics of dye solar cell made of these electrodes have been evaluated and it is found that the characteristics of the TiO2 film alone can alter the overall conversion efficiency to a great extent. Additional analysis using electrochemical impedance spectroscopy has been carried out to probe the electron transport properties and charge collection efficiency of these electrodes.

Item Type: Journal Article
Additional Information: Copyrright of this article is belongs to AMER SCIENTIFIC PUBLISHERS
Keywords: Photoelectrode; Dye Sensitised Solar Cell; Photovoltaic Characteristics; Electron Transport
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Depositing User: Id for Latest eprints
Date Deposited: 25 Sep 2013 11:59
Last Modified: 25 Sep 2013 11:59
URI: http://eprints.iisc.ac.in/id/eprint/47321

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