Specifically, we investigate the impact sapphire crystal orientation has on the morphology and alignment of MoS2 grown by chemical vapor deposition. C﹑lane (0001), R﹑lane (1102), A﹑lane (1120) and M﹑lane (1010) Al2O3 substrates, annealed at high temperature in air, are used as ...
As such, further characterization was done by Raman imaging of a larger area (8μm x 8μm ) of on sapphire sample (Supporting Information Fig. S2). The image was acquired using a range of minimum MvaoluSe2 MBtMiMtBFcacaBoogmhhaonniffiiiicgee,pVVooom3ddMaauVTaSSSMM8OgOlBmBrc2...
(~0.1 s), and broadband sensitivity ranging from the UV to the NIR in two terminal graphene/MoS2photodetectors. Our devices are based on the deterministic transfer of MoS2on top of directly grown graphene on sapphire, and their performance outperforms previous similar photodetectors using large...
An anomalous thickness-dependent Raman shift (A(1g)) of the MoS(2) atomic layers is observed in Mo-sulfurizations on sapphire substrates, which can be attributed to the competition between the effects of thickness and the surface/interface. Both effects vary with the sulfurizing temperatures ...
Influence of precursor thin-film quality on the structural properties of large-area MoS2 films grown by sulfurization of MoO3 on c-sapphire In recent years, molybdenum disulfide (MoS2) has been investigated due to its unique electronic, optical, and mechanical properties with a variety of appli...
Though sapphire has been the usual choice for insulating substrate, its 50.6% lattice mismatch with MoS2 [25] and its low thermal conductivity [26] are severe disadvantages. On the other hand, SiC and GaN might be good candidates since their lattice constants are closer to MoS2. The mismatch...
We report the largest-size thin films of uniform single-layer MoS2 on sapphire substrates grown by chemical vapor deposition based on the reaction of gaseo... SH Baek,Y Choi,W Choi - 《Nanoscale Research Letters》 被引量: 22发表: 2015年 ...
The researchers synthesized isotopically pure 100MoS2-92MoS2lateral structures using a two-step chemical vapor deposition (CVD) method. Initially, monolayer 100MoS2crystals were grown on sapphire substrates using a 100MoO3 precursor. After cooling, the substrates were reintroduced into the CVD reactor ...
(b) Raman spectra for the MoS2 monolayer grown on sapphire substrates (excitation laser: 488 nm). (c) PL spectrum of monolayer MoS2. (excitation laser: 488 nm). Results sTbmayhpeenWpthgthseeriorwipewnervstrehueevsbioptosifetgurrtashaftoteeserdt.mmuTtdoehhidneeesoio2snl1api–zyat2ei3...
Diffusion-controlled epitaxy of large area coalesced WSe2 monolayers on sapphire. Nano Lett. 18, 1049–1056 (2018). CAS Google Scholar van der Zande, A. M. et al. Grains and grain boundaries in highly crystalline monolayer molybdenum disulphide. Nat. Mater. 12, 554–561 (2013). Google ...