Enhanced performance of dye-sensitized solar cells based on TiO2 nanotube membranes using an optimized annealing profile

F. Mohammadpour; M. Moradi; K. Lee; G. Cha; S. So; A. Kahnt; D. M. Guldi; M. Altomare; P. Schmuki

doi:10.1039/C4CC08266D

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Enhanced performance of dye-sensitized solar cells based on TiO₂ nanotube membranes using an optimized annealing profile†

F. Mohammadpour,^a M. Moradi,^a K. Lee,

^b G. Cha,^b S. So,^b A. Kahnt,^c D. M. Guldi,^c M. Altomare^b and P. Schmuki*^bd

Author affiliations

* Corresponding authors

^a Physics Department, College of Science, Shiraz University, Eram Street, 71454 Shiraz, Iran

^b Department of Material Science and Engineering, WW4-LKO, University of Erlangen-Nuremberg, Martensstrasse 7, D-91058 Erlangen, Germany
E-mail: schmuki@ww.uni-erlangen.de
Fax: +966-49-9131-852-7582
Tel: +966-49-9131-852-7575

^c University of Erlangen-Nuremberg, Egerlandstrasse 3, D-91058 Erlangen, Germany

^d Department of Chemistry, King Abdulaziz University, Jeddah, Saudi Arabia

Abstract

We use free-standing TiO₂ nanotube membranes that are transferred onto FTO slides in front-side illuminated dye-sensitized solar cells (DSSCs). We investigate the key parameters for solar cell arrangement of self-ordered anodic TiO₂ nanotube layers on the FTO substrate, namely the influence of the annealing procedure on the DSSC light conversion efficiency. The results show that using an optimal temperature annealing profile can significantly enhance the DSSC efficiency (in our case η = 9.8%), as it leads to a markedly lower density of trapping states in the tube oxide, and thus to strongly improved electron transport properties.

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Article information

DOI: https://doi.org/10.1039/C4CC08266D
Article type: Communication
Submitted: 20 Oct 2014
Accepted: 02 Dec 2014
First published: 03 Dec 2014

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Chem. Commun., 2015,51, 1631-1634

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Enhanced performance of dye-sensitized solar cells based on TiO₂ nanotube membranes using an optimized annealing profile

F. Mohammadpour, M. Moradi, K. Lee, G. Cha, S. So, A. Kahnt, D. M. Guldi, M. Altomare and P. Schmuki, Chem. Commun., 2015, 51, 1631 DOI: 10.1039/C4CC08266D

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