Please use this identifier to cite or link to this item: http://dl.pgu.ac.ir/handle/Hannan/80378
Title: Electronic and optical properties of single crystal SnS2: an earth-abundant disulfide photocatalyst
Keywords: Science & Technology;Physical Sciences;Technology;Chemistry, Physical;Energy & Fuels;Materials Science, Multidisciplinary;Chemistry;Materials Science;TEMPERATURE-DEPENDENCE;RAMAN-SCATTERING;THIN-FILMS;CELLS;WATER;DEPOSITION;POLYTYPISM;SN2S3;GAP;Science & Technology;Physical Sciences;Technology;Chemistry, Physical;Energy & Fuels;Materials Science, Multidisciplinary;Chemistry;Materials Science;TEMPERATURE-DEPENDENCE;RAMAN-SCATTERING;THIN-FILMS;CELLS;WATER;DEPOSITION;POLYTYPISM;SN2S3;GAP
Issue Date: 11-Oct-2016
11-Dec-2015
9-Dec-2015
Publisher: Royal Society of Chemistry
Description: Tin disulfide is attractive as a potential visible-light photocatalyst because its elemental components are cheap, abundant and environmentally benign. As a 2-dimensional semiconductor, SnS2 can undergo exfoliation to form atomic layer sheets that provide high surface areas of photoactive material. In order to facilitate the deployment of this exciting material in industrial processes and electrolytic cells, single crystals of phase pure SnS2 are synthesised and analysed with modern spectroscopic techniques to ascertain the values of relevant semiconductor properties. An electron affinity of 4.16 eV, ionisation potential of 6.44 eV and work function of 4.81 eV are found. The temperature dependent band gap is also reported for this material for the first time. We confirm the valence band is formed predominately by a mixture S 3p and Sn 5s, while the conduction band consists of a mixture of Sn 5s and 5p orbitals and comment on the agreement between experiment and theory for values of band gaps.
Other Identifiers: 2050-7496
http://hdl.handle.net/10044/1/41359
https://dx.doi.org/10.1039/c5ta08214e
Type Of Material: OTHER
Appears in Collections:Faculty of Engineering

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