Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/95921
Title: Elucidating the role of ultrathin Pt film in back-illuminated dye-sensitized solar cells using anodic TiO2 nanotube arrays
Authors: Zhong, Peng
Que, Wenxiu
Chen, Jin
Hu, Xiao
Issue Date: 2012
Source: Zhong, P., Que, W., Chen, J., & Hu, X. (2012). Elucidating the role of ultrathin Pt film in back-illuminated dye-sensitized solar cells using anodic TiO2 nanotube arrays. Journal of Power Sources, 210, 38-41.
Series/Report no.: Journal of power sources
Abstract: We have systematically studied the effects of ultrathin platinum catalytic films in the sub-10 nm regime on the performance of the back-illuminated dye-sensitized solar cells using anodic TiO2 nanotube arrays. Results indicate that the maximum power conversion efficiency is achieved with a platinum film of 2.48 nm thickness. The charge transfer resistance sharply decreases from 6.39 Ω cm−2 (1.24 nm) to 0.24 Ω cm−2 (2.48 nm); however, subsequently, it keeps on increasing to 0.76 Ω cm−2 (3.72 nm) and 1.36 Ω cm−2 (5.58 nm); finally, it re-decreases to 0.25 Ω cm−2 (8.06 nm), and remains stable afterwards. The platinum film morphology and particle size on the counterelectrode have been demonstrated to play an important role in catalytic activity in the ultrathin thickness range. This study is meaningful from the aspect of improving the performance of the back-illuminated devices and reducing cost; and meanwhile sheds light on the main factors of influencing catalytic activity in the ultrathin catalytic films.
URI: https://hdl.handle.net/10356/95921
http://hdl.handle.net/10220/11366
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2012.02.094
Rights: © 2012 Elsevier B.V.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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