Raman characterization of platinum diselenide thin films
By M. O'Brien, Niall McEvoy, C. Motta, Jian-Yao Zheng, N. Berner, J. Kotakoski, Kenan Elibol, T. Pennycook, Jannik C. Meyer, C. Yim and 5 more. 2015
202 citations recorded by the source corpus.
Platinum diselenide (PtSe2) is a newly discovered 2D material which is of great interest for applications in electronics and catalysis. PtSe2 films were synthesized by thermally assisted selenization of predeposited platinum films and scanning transmission electron microscopy revealed the crystal structure of these films to be 1T. Raman scattering of these films was studied as a function of film thickness, laser wavelength and laser polarization. Eg and A1g Raman active modes were identified using polarization measurements in the Raman setup. These modes were found to display a clear position and intensity dependence with film thickness, for multiple excitation wavelengths, and their peak positions agree with simulated phonon dispersion curves for PtSe2. These results highlight the practicality of using Raman spectroscopy as a prime characterization technique for newly synthesized 2D materials.
Subfields: Electrical and Electronic Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/bf3d28dafdbaafd8d3f461130bfd8a61230fa61c
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In Materials Chemistry
Citations in the corpus
- Thickness dependent electronic properties of Pt dichalcogenides (2019, methodology): “Furthermore, by using Raman characterization, it is possible to determine the thickness of few-layered 1T-PtSe2 fabricated through “direct selenization” technique.(20) In one study,(23) it was observed that the electron mobility at room temperature of PtSe2 is significantly higher than MoS2 implying”