An Exploratory Study on TiO2 Film Thickness Related Photocurrent Decreasing in Dye-sensitized Solar Cells

DOI

10.2991/icmsa-15.2015.95How to use a DOI?

Keywords

TiO2 Film Thickness, DSSC, Photocurrent.

Abstract

This paper studies the effects of titanium dioxide films with different thickness on the photocurrent. The results show that titanium dioxide itself is not able to reduce Isc as long as the film thickness is less than 50 m-100 m (the electron diffusion length).The real factors affecting the photocurrent is the number of photoelectrons which could be injected into the TiO2 conduction band generated by dye adsorped on the surface of TiO2 . The thickness of the film provides a huge space for the dye molecules, but dye molecules quenching might play an important role to prevent the photoelectrons from injecting into the conducting band of TiO2 . The improvement mechanism of Isc was discussed and an intriguing approach to enhance Isc was addressed.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiao-Jiao Zheng
AU  - Zhi Wang
AU  - Xiao Tang
PY  - 2014/06
DA  - 2014/06
TI  - An Exploratory Study on TiO2 Film Thickness Related Photocurrent Decreasing in Dye-sensitized Solar Cells
BT  - Proceedings of the 2015 International Conference on Material Science and Applications
PB  - Atlantis Press
SP  - 523
EP  - 530
SN  - 2352-541X
UR  - https://doi.org/10.2991/icmsa-15.2015.95
DO  - 10.2991/icmsa-15.2015.95
ID  - Zheng2014/06
ER  -