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Hydrothermal growth of bilayered rutile-phased TiO2 nanorods/micro-sizeTiOz flower in highly acidic solution for dye-sensitized solar cell

Ahmad, Mohd Khairul and Mohan, V. M. and Murakami, K. (2015) Hydrothermal growth of bilayered rutile-phased TiO2 nanorods/micro-sizeTiOz flower in highly acidic solution for dye-sensitized solar cell. Joumal of Sol-gel Science and Technology, 73. pp. 655-659. ISSN 0928-0707

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Abstract

Aligned rutile-phased TiO2 (r-TNRs) nanorods and micro-size rutile-phased TiO2 flowers (r-TFs) films were prepared on fluorinedoped tin oxide (FIO) substrate using highly acidic solution by two steps of hydrothermal process. The hydrothermal process was done at 150'C in 5 h for the first step and 2 h for the second step. These films were used as a photoelectrode in dye-sensitized solar cell (DSC) application. Aligned r-TNRs and r-TFs were prepared using one-step and two-step hydrothermal processes, respectively. At the end of second step hydrothermal process, micro-size rutile-phased TiO2 flowers (r-TFs) were observed on top of r-TNRs (FTO/r-TNRs/r-TFs). Power conversion efficiencies for both aligned r-TNRs and r-TNRs/r-TFs were compared. From the results, DSC made of r-TNRs only produced energy conversion efficiency of 1.52 Va and DSC made of r-TNRs/r-TFs gave excellent energy conversion efficiency (fi of 4.27 7o.

Item Type: Article
Uncontrolled Keywords: titanium dioxide; nanorods; TiO2 flower; rutile; power conversion efficiency; hydrothermal
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2896-2986 Production of electricity by direct energy conversion
Divisions: Faculty of Electrical and Electronic Engineering > Department of Electronic Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 30 Apr 2015 01:59
Last Modified: 30 Apr 2015 01:59
URI: http://eprints.uthm.edu.my/id/eprint/6859
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