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Mesoporous Titania-Vertical Nanorod Films With Interfacial Engineering For High Performance Dye-Sensitized Solar Cells

Irfan, Ahmed and Fakharuddin, Azhar and Qamar, Wali and Ayib Rosdi, Zainun and Jamil, Ismail and Rajan, Jose (2015) Mesoporous Titania-Vertical Nanorod Films With Interfacial Engineering For High Performance Dye-Sensitized Solar Cells. Nanotechnology, 26 (105401). pp. 1-8. ISSN 0957-4484

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Abstract

Working electrode (WE) fabrication offers significant challenges in terms of achieving high-efficiency dye-sensitized solar cells (DSCs). We have combined the beneficial effects of vertical nanorods grown on conducting glass substrate for charge transport and mesoporous particles for dye loading and have achieved a high photoconversion efficiency of (η) > 11% with an internal quantum efficiency of ~93% in electrode films of thickness ~7 ± 0.5 μm. Controlling the interface between the vertical nanorods and the mesoporous film is a crucial step in attaining high η. We identify three parameters, viz., large surface area of nanoparticles, increased light scattering of the nanorod�nanoparticle layer, and superior charge transport of nanorods, that simultaneously contribute to the improved photovoltaic performance of the WE developed.

Item Type: Article
Uncontrolled Keywords: anoenergy, nanowire supported films, interfacial engineering, light scattering, photovoltaics
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Faculty/Division: Faculty of Electrical & Electronic Engineering
Faculty of Industrial Sciences And Technology
Depositing User: Prof. Dr. Jose Rajan
Date Deposited: 30 Mar 2015 07:41
Last Modified: 08 Feb 2018 03:13
URI: http://umpir.ump.edu.my/id/eprint/8604
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