Reduced Graphene Oxide Modified TiO2 Nanoparticles Composites for Improved Performance of Dye-sensitized Solar Cells

DOI

10.2991/ame-17.2017.33How to use a DOI?

Keywords

dye-sensitized solar cell; reduced graphene oxide; electron transport; charge recombination

Abstract

As a two-dimensional (2D) nanostructure, reduced graphene oxide (rGO) has high specific surface area and excellent conductivity. In this paper, we obtain the TiO2/rGO (TG) composite via a simple mechanical stirring the mixtures of anatase TiO2 nanoparticles and graphene oxide (GO) nanosheets followed by a calcination process and apply it as photoanode material in dye-sensitized solar cells (DSSCs). rGO in the TG photoanode can inhibit charge recombination and increase the short-circuit current density (Jsc) and thus improve the power conversion efficiency (PCE) of the DSSCs. Moreover, the layered structure rGO increase the dye absorption in the TG-based photoanode and enhance the light harvesting efficiency. As a result, Jsc and PCE of DSSCs based on TG photoanode have been considerably increased from 9.75 mA/cm-2 to 10.45 mA/cm-2, 3.87 % to 4.16 %, compared with pure TiO2 photoanode, enhanced by7.2% and 7.5%, respectively.

Copyright

© 2017, 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  - Hui-Ru Lv
AU  - Xiao-Wei Yuan
AU  - Hui-Jie Lv
AU  - Can Cui
PY  - 2017/04
DA  - 2017/04
TI  - Reduced Graphene Oxide Modified TiO2 Nanoparticles Composites for Improved Performance of Dye-sensitized Solar Cells
BT  - Proceedings of the 3rd Annual International Conference on Advanced Material Engineering (AME 2017)
PB  - Atlantis Press
SP  - 191
EP  - 195
SN  - 2352-5401
UR  - https://doi.org/10.2991/ame-17.2017.33
DO  - 10.2991/ame-17.2017.33
ID  - Lv2017/04
ER  -