2015年3月24日 · We study the evolution of the band gap structure in few-layer MoTe2 crystals, by means of low-temperature microreflectance (MR) and temperature-dependent photoluminescence (PL) measurements.

(a) Thickness-dependent photoluminescence (PL) spectra for MoTe 2 crystals on SiO 2 /Si. Results are shown for thicknesses ranging from one (1L) to five layers (5L), as well as for the bulk...

2022年12月15日 · Ruppert et al. measured different optical spectra of exfoliated single- and few-layer 2H MoTe2 by PL, Raman, and optical absorption, and observed the strong PL absorption of monolayer 2H MoTe2. Based on these optical results, they demonstrated monolayer 2H MoTe 2 is a direct-gap semiconductor with a 1.10 eV optical bandgap [28].

2020年1月1日 · We identify the thickness of 1L–5L 2H-MoTe 2 flake. Temperature-dependent PL measurement is used to determine the optical band gap and to probe excitonic states in few-layer 2H-MoTe 2. From the PL spectra, we find that 2H-MoTe 2 possesses a …

2015年6月3日 · Molybdenum telluride (MoTe 2) has emerged as a special member in the family of two-dimensional transition metal dichalcogenide semiconductors, owing to the strong spin–orbit coupling and relatively small energy gap, which offers new applications in valleytronic and excitonic devices.

2023年2月22日 · 在本文中，结合实验和理论研究了机械应变对双层 MoTe 2光致发光 (PL) 的各种光谱特征的影响。 我们发现双层 MoTe 2可以通过应变工程从间接带隙材料转换为直接带隙材料，从而使光致发光增强 2.24 倍。

2017年10月11日 · Here we report the experimental demonstration of an electrostatic-doping-driven phase transition between the hexagonal and monoclinic phases of monolayer molybdenum ditelluride (MoTe 2). We find...

2021年11月19日 · Here we report site-controlled creation of telecom QEs emitting over the 1080 to 1550 nm telecommunication wavelength range via coupling of 2D molybdenum ditelluride (MoTe 2) to strain inducing...

The effect of ⁴ He ⁺ ion fluence on the PL and Raman signatures of the irradiated film provides new insights into the type and concentration of defects formed in the MoS 2 lattice, which are ...

2020年7月24日 · Minor structural changes in transition metal dichalcogenides can have dramatic effects on their electronic properties. This makes the quest for key parameters that enable a selective choice between...