
[2305.12762] Promoted Electronic Coupling of Acoustic Phonon …
2023年5月22日 · Through comparing the monolayer and bilayer MoTe2, the strength of EPC is found to be less likely to depend on thickness for neutral samples but clearly promoted for thinner samples with electron doping, while for hole doping, the strength alters more significantly with the thickness than doping.
Symmetry induced phonon renormalization in few layers of 2H-MoTe2 …
2020年10月28日 · Understanding of electron–phonon coupling (EPC) in two-dimensional (2D) materials manifesting as phonon renormalization is essential to their possible applications in nanoelectronics. Here we report in situ Raman measurements of electrochemically top-gated 2, 3 and 7 layered 2H-MoTe 2 channel based field-effect transistors.
掺杂半金属 MoTe2 中声学声子模式的促进电子耦合,ACS Nano - X …
2023年8月30日 · 在此,我们探索了单层半金属mote 2 的电子-声子耦合(epc) ,在此厚度限制下没有相位模糊。除了声子模式的硬化或软化之外,epc 的强度还可以通过掺杂来强烈调节。
Ion-Induced Phase Changes in 2D MoTe2 Films for Neuromorphic …
2025年1月6日 · We developed a large-scale MoTe 2 film on a Si/SiO 2 wafer by simple sputtering followed by lithium-ion intercalation and applied it to artificial synaptic devices. The Al 2 O 3 passivation layer allows us to develop a stable 1T′-MoTe 2 phase by preventing Te segregation caused by the weak bonding between Mo and Te atoms during lithiation.
Structure and morphology of 2H-MoTe2 monolayer on …
2022年5月24日 · In this work, we investigated the structure and morphology of the MBE-grown MoTe 2 monolayer on GaAs (111)B using scanning tunneling microscopy (STM), electron diffraction, and X-ray...
Optical Properties of Nanoscale-Thick 2H and 1T′ MoTe2 Films via ...
2024年10月11日 · In this research paper, we present the transition of the 2H to 1T′ phase of MoTe 2 films by controlled growth using molecular beam epitaxy. Raman spectroscopy confirms the growth of the 2H and 1T′ phases of MoTe 2.
Herein, we explore the electron-phonon coupling (EPC) of the monolayer semimetallic MoTe2, without phase ambiguity under this thickness limit. Apart from the hardening or softening of phonon modes, the strength of the EPC can be strongly
Mixed-phase MoTe2 with exposed edges and rich defects for …
2023年7月20日 · In this study, we prepared MoTe 2 with rich electroactive sites by morphology and defect engineering and investigated its electrocatalytic performance for the HER. The MoTe 2 was grown on the surface of a Mo mesh and comprises the 2H and 1T’ phases of MoTe 2 mixed evenly in the microscale.
Engineering the electronic properties of MoTe2 via defect control
2024年8月20日 · The study explores the electronic properties of monolayer MoTe2, revealing intrinsic defects that can enhance its potential for electronic applications and providing theoretical support for defect engineering in 2D materials.
Promoted Electronic Coupling of Acoustic Phonon Modes in …
Herein, we explore the electron–phonon coupling (EPC) of the monolayer semimetallic MoTe 2, without phase ambiguity under this thickness limit. Apart from the hardening or softening of the phonon modes, the strength of the EPC can be strongly modulated by doping.