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Multiporous Nanofibers of SnO2 by Electrospinning for High Efficiency Dye-Sensitized Solar Cells

Fakharuddin, Azhar and Wali, Qamar and Irfan, Ahmed and Mohd Hasbi, Ab. Rahim and Jamil, Ismail and Rajan, Jose (2014) Multiporous Nanofibers of SnO2 by Electrospinning for High Efficiency Dye-Sensitized Solar Cells. Journal of Materials Chemistry A, 2 (41). pp. 17427-17434. ISSN 2050-7488 (print); 2050-7496 (online)

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Abstract

Various one-dimensional nano-morphologies, such as multiporous nanofibers (MPNFs), porous nanofibers (PNFs), and nanowires (NWs) of SnO2, are synthesized using electrospinning technique by controlling the tin precursor concentration. The MPNFs have [similar]8-fold higher surface area compared to the other morphologies. Dye-sensitized solar cells (DSCs) were fabricated using these nanostructures as photoanodes and their performance was compared. The MPNFs surpass the performance of PNFs and NWs as well as conventional TiO2 paste. Record photoconversion efficiency (PCE) of [similar]7.4% was realized in MPNFs DSCs, which was twice to that achieved using PNFs ([similar]3.5%). Furthermore, the MPNFs showed over >80% incident photon to current conversion efficiency (22% higher than that achieved by spherical P25 TiO2 particles) and also demonstrated [similar]3 times longer electron lifetime and electron diffusion length. Owing to the possibility to produce large quantities using electrospinning technique, huge commercial potential of SnO2 nanostructures, and promising results achieved herein, the MPNFs are expected soon to be utilized in commercial devices.

Item Type: Article
Subjects: Q Science > QD Chemistry
Faculty/Division: Faculty of Industrial Sciences And Technology
Depositing User: Noorul Farina Arifin
Date Deposited: 25 Nov 2014 03:49
Last Modified: 22 Nov 2018 08:12
URI: http://umpir.ump.edu.my/id/eprint/7527
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