2014年11月18日 · In this work we examine the PL characteristics of CVD-grown MoS 2 monolayers with a focus on the role of growth-induced non-uniform strain and GBs. We examine the PL intensity and peak...

2023年3月15日 · In this work, we present a systematic spectroscopic study of CVD-grown MoS2, and two types of MoS2 flakes have been identified: one type of flake contains a central nanoparticle with the multilayer MoS2 structure, and the other is dominated by triangular flakes with monolayer or bilayer structures.

2017年12月1日 · The stronger photoluminescence (PL) in chemical vapor deposition (CVD) grown monolayer MoS2 has been attributed to its high crystal quality compared with that in mechanically exfoliated (ME...

Controllable atmospheric pressure CVD has been optimized to grow the transition metal dichalcogenide MoSe2 with tunable morphology at 750°C on the silicon substrate with a native oxide layer of...

2023年1月1日 · Monolayer MoS 2 flakes of high crystalline quality were synthesized by using one-furnace CVD system. The shape of MoS 2 flakes changes from triangle to hexagon, then back to triangle as the S concentration decreases. The size and shape change of MoS 2 flakes can be controlled by the gradient of the S concentration.

2018年7月1日 · Monolayer MoS 2 films on three different substrates, SiO 2 /Si, quartz and sapphire are synthesized by the method of chemical vapor deposition (CVD). Through a series of the optical characterization methods, the films are confirmed to be uniform and continuous on micrometer scale with a reliable quality.

2024年12月27日 · A stronger photoluminescence (PL) phenomenon was observed for the p-doped monolayer MoS2. The results show that the PL of MoS2-2D films can be enhanced in a simple and convenient way compatible with device fabrication processes by p-type doping and annealing in an oxygen atmosphere.

2024年11月5日 · Monolayer Molybdenum disulfide (MoS 2) exhibits three phonon dispersions at the Brillouin zone edge (M point): out-of-plane optical phonon vibration (ZO), in-plane longitudinal optical phonon vibration (LO), and in-plane transverse optical phonon vibration (TO).

2020年5月26日 · Here, we report their photoluminescence (PL) responses to solution pH under aqueous condition by means of PL spectroscopy and imaging. MoS 2 with different Mo sources and additive such as MoS 2, MoO 2 and NaCl were synthesized. It was found that the PL response was highly affected by the Mo sources.

2015年6月11日 · Structural defects can critically influence the electrical and optical properties of monolayered molybdenum disulfide (MoS2) grown by chemical vapor deposition (CVD); thus, convenient optical methods that can visualize grain boundaries (GBs) and other structural defects are in great demand.