Optical modeling-assisted characterization of dye-sensitized solar cells using TiO2 nanotube arrays as photoanodes

Yun, Jung-Ho, Kim, Il Ku, Ng, Yun Hau, Wang, Lianzhou and Amal, Rose (2014) Optical modeling-assisted characterization of dye-sensitized solar cells using TiO2 nanotube arrays as photoanodes. Beilstein Journal of Nanotechnology, 5 1: 895-902. doi:10.3762/bjnano.5.102


Author Yun, Jung-Ho
Kim, Il Ku
Ng, Yun Hau
Wang, Lianzhou
Amal, Rose
Title Optical modeling-assisted characterization of dye-sensitized solar cells using TiO2 nanotube arrays as photoanodes
Journal name Beilstein Journal of Nanotechnology   Check publisher's open access policy
ISSN 2190-4286
Publication date 2014
Year available 2014
Sub-type Article (original research)
DOI 10.3762/bjnano.5.102
Open Access Status DOI
Volume 5
Issue 1
Start page 895
End page 902
Total pages 8
Place of publication Frankfurt am Main, Germany
Publisher Beilstein-Institut Zur Forderung der Chemischen Wissenschaften
Collection year 2015
Language eng
Abstract Photovoltaic characteristics of dye-sensitized solar cells (DSSCs) using TiO2 nanotube (TNT) arrays as photoanodes were investigated. The TNT arrays were 3.3, 11.5, and 20.6 μm long with the pore diameters of 50, 78.6, and 98.7 nm, respectively. The longest TNT array of 20.6 μm in length showed enhanced photovoltaic performances of 3.87% with significantly increased photocurrent density of 8.26 mA.cm-2. This improvement is attributed to the increased amount of the adsorbed dyes and the improved electron transport property with an increase in TNT length. The initial charge generation rate was improved from 4 × 1021 s-1.cm-3 to 7 × 1021 s-1.cm-3 in DSSCs based on optical modelling analysis. The modelling analysis of optical processes inside TNT-based DSSCs using generalized transfer matrix method (GTMM) revealed that the amount of dye and TNT lengths were critical factors influencing the performance of DSSCs, which is consistent with the experimental results.
Keyword Charge generation
Dye-sensitized solar cells
Generalized transfer matrix method
Optical process
Photocatalysis
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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