Journal article
Determination of the mechanical properties of SnSe, a novel layered semiconductor
The Journal of physics and chemistry of solids, Vol.116, pp.306-312
05/2018
DOI: 10.1016/j.jpcs.2018.01.045
Abstract
Tin selenide (SnSe) is one the most promising materials for flexible electronics. However, experiments on the direct determination of its mechanical properties are still missing. By means of depth-sensing nanoindentation experiments, we directly evaluate the Young's modulus of bulk single crystals of tin selenide (25.3 GPa), as well as their hardness (0.82 GPa). Experimental results are compared with predictions by density functional theory, performed using eleven different functionals. The discrepancies between the experimental results and the thoretical predictions can be ascribed to the oxidation of the SnSe surface, detected by X-ray photoelectron spectroscopy.
•We have studied by depth-sensing nanoindentation the Young's modulus and the hardness of highly crystalline single crystals of SnSe.•We show that SnSe is a superflexible layered semiconductor.•SnSe has been grown by chemical vapor transport•Theoretical reproduction of our results by different functionals
Details
- Title: Subtitle
- Determination of the mechanical properties of SnSe, a novel layered semiconductor
- Creators
- Caterina Lamuta - Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USADavide Campi - Dipartimento di Scienza dei Materiali, Università Milano-Bicocca, 20125, Milano, ItalyLeonardo Pagnotta - Department of Mechanical, Energy and Management Engineering, University of Calabria, Ponte P. Bucci, Cubo 44C, 87036, Rende, ItalyAbhay Dasadia - A.D. Patel Institute of Technology, New Vallabh Vidyanagar, 388121, Gujarat, IndiaAnna Cupolillo - Department of Physics, University of Calabria, Ponte P. Bucci, Cubo 31C, 87036, Rende, ItalyAntonio Politano - Fondazione Istituto Italiano di Tecnologia, Graphene Labs, via Morego 30, 16163, Genova, Italy
- Resource Type
- Journal article
- Publication Details
- The Journal of physics and chemistry of solids, Vol.116, pp.306-312
- Publisher
- Elsevier Ltd
- DOI
- 10.1016/j.jpcs.2018.01.045
- ISSN
- 0022-3697
- eISSN
- 1879-2553
- Language
- English
- Date published
- 05/2018
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984064113402771
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