
Comparison between layered Pt3Te4 and PtTe2 for electrocatalytic ...
Sep 1, 2021 · Platinum tellurides morphology and chemistry were characterized and confirmed by XRD, SEM and Raman. The HER activities were compared, with Pt 3 Te 4 displaying a better electrochemical performance. For ORR PtTe 2 had an onset potential closer to 10% Pt/C catalyst.
As a newly emergent type-II Dirac semimetal, platinum telluride (PtTe2) stands out from other two dimensional noble-transition-metal dichalcogenides for the unique band structure and novel physical properties, and has been studied extensively.
(a) Raman spectrum of a PtTe2 film, synthesized from an initial …
XRD allowed the crystallinity of the PtTe 2 film to be examined (see Supplementary Fig. 1d). The sharp peaks observed are indicative of good crystallinity in the film, and are in agreement with...
Ordered clustering of single atomic Te vacancies in atomically thin PtTe
Apr 21, 2021 · Figure 2i shows the corresponding Fourier-transformed (FT) k 3-weighted extended X-ray absorption fine structure (EXAFS) spectrum for PtTe 2 NSs, PtTe 2-600 NSs, and Pt foil.
PtTe 2 photodetectors with negative photoconductivity under …
Jun 1, 2024 · The Raman spectra of the PtTe 2 film corresponds to in-plane (E g) and out-of-plane (A lg) optical phonon modes at about 110 cm −1 and 156 cm −1, respectively. The (00 n) sharp peaks of the X-ray diffraction (XRD) are shown in Fig. 1 (d).
Patterning of type-II Dirac semimetal PtTe - ScienceDirect
Aug 1, 2021 · In this work, we report a controllable process to synthesize and pattern a semimetallic PtTe 2 from 2D Te by laser irradiation and to fabricate the heterostructures of metal-semiconductor for optimized interface of 2D Te devices with PtTe 2 contact.
a) XRD patterns, b) Raman spectra, c) Pt 4f, and d) Te 3d XPS spectra…
Herein, Pt/PtS electrocatalysts on S-doped carbon nanofilms (PPS/C) have been successfully fabricated through a precursor reduction route with a complex of Pt and 1-dodecanethiol (1-DDT) as the...
(a) XRD patterns of Pt2Te, PtTe and PtTe2 and (b)– (d) …
In order to obtain loaded Pt-based catalyst with enhanced high activity and stability towards formic acid electro-oxidation (FAO), PtTe nanoparticles loading on graphene oxide (GO) were...
Giant Rashba splitting in PtTe/PtTe2 heterostructure | Nature ...
Mar 18, 2025 · f Raman spectra of PtTe 2, PtTe/PtTe 2 and PtTe, which is fitted by Lorentzian functions. g The real-space distributions of electric wavefunctions of the Rashba state at Γ point.
Air-stable van der Waals PtTe
Nov 11, 2022 · The XPS spectra of as-grown PtTe 2 showed distinct peaks related to the chemical bonding between Pt and Te in the Pt 4f and Te 3d scans, and the measured peak intensities revealed the highly stoichiometric nature (at. % …