Please use this identifier to cite or link to this item:
|Title:||Photoelectrochemical properties of chemically exfoliated MoS2|
|Citation:||King, L.A., Zhao, W., Chhowalla, M., Riley, D.J., Eda, G. (2013-08-21). Photoelectrochemical properties of chemically exfoliated MoS2. Journal of Materials Chemistry A 1 (31) : 8935-8941. ScholarBank@NUS Repository. https://doi.org/10.1039/c3ta11633f|
|Abstract:||Group 6 transition metal dichalcogenides (TMD) such as MoS2 are promising candidates for photocatalysis and photoelectrochemical applications. Despite their promise, scalable deposition of thin films remains a challenge for TMD-based photoanodes. Here we investigate the photoelectrochemical properties of ultra-thin films of chemically exfoliated MoS2 and its composites with TiO2 nanoparticles. We show that MoS2 monolayer films exhibit photoelectrochemical properties similar to bulk materials, generating photocurrent at excitation wavelengths above the direct band gap edge at ∼660 nm (∼1.9 eV). We also demonstrate that MoS2 monolayers adsorbed on TiO2 behave as effective photosensitizers. We find that in TiO2-MoS2 composite photoanodes, photoexcited hot electrons in MoS2 are able inject into TiO2 whilst holes are removed by the electrolyte so as to generate electrical current from incident light. Our results demonstrate the potential of solution-processed MoS2 monolayers for photoelectrochemical applications. © 2013 The Royal Society of Chemistry.|
|Source Title:||Journal of Materials Chemistry A|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Sep 13, 2018
WEB OF SCIENCETM
checked on Sep 5, 2018
checked on Jul 6, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.