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Issue 35, 2016

One-step fabrication of large-area ultrathin MoS2 nanofilms with high catalytic activity for photovoltaic devices

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Abstract

Here we report a facile one-step solution-phase process to directly grow ultrathin MoS2 nanofilms on a transparent conductive glass as a novel high-performance counter electrode for dye-sensitized solar cells. After an appropriate reaction time, the entire surface of the conductive glass substrate was uniformly covered by ultrathin MoS2 nanofilms with a thickness of only several stacked layers. Electrochemical impedance spectroscopy and cyclic voltammetry reveal that the MoS2 nanofilms possess excellent catalytic activity towards tri-iodide reduction. When used in dye-sensitized solar cells, the MoS2 nanofilms show an impressive energy conversion efficiency of 8.3%, which is higher than that of a Pt-based electrode and very promising to be a desirable alternative counter electrode. Considering their ultrathin thickness, superior catalytic activity, simple preparation process and low cost, the as-prepared MoS2 nanofilms with high photovoltaic performance are expected to be widely employed in dye-sensitized solar cells.

Graphical abstract: One-step fabrication of large-area ultrathin MoS2 nanofilms with high catalytic activity for photovoltaic devices

Supplementary files

Article information


Submitted
05 May 2016
Accepted
07 Aug 2016
First published
08 Aug 2016

Nanoscale, 2016,8, 16017-16025
Article type
Paper

One-step fabrication of large-area ultrathin MoS2 nanofilms with high catalytic activity for photovoltaic devices

J. Liang, J. Li, H. Zhu, Y. Han, Y. Wang, C. Wang, Z. Jin, G. Zhang and J. Liu, Nanoscale, 2016, 8, 16017 DOI: 10.1039/C6NR03635J

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