Elucidating the mechanism for the chemical vapor deposition growth of vertical MoO2/MoS2 flakes toward photoelectrochemical applications

Trung, Trân Nam; Kamand, Fadi Z.; Tahtamouni, T. M. Al

doi:10.1016/j.apsusc.2019.144551

Cited by 25 publications

(20 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A similar process could be used to grow 2D-MoS 2 layers [36,70] by employing two sources, such as molybdenum thin film (below 20 nm) or molybdenum oxide (MoO 3 ) powder deposited on a SiO 2 /Si substrate as a first precursor and the sulfur powder or gaseous sulfur source (H 2 S, etc.) as the second precursor [49,[67][68][69]71,72]. A typical CVD sulfurization process (Figure 2a) is usually performed in a tubular furnace reactor, where a continuous argon flow (typical flow rate 100 sccm) is used as a carrier gas to stream the evaporated sulfur into the Mo source materials.…”

Section: Chemical Vapor Depositionmentioning

confidence: 99%

Recent Progress in the Synthesis of MoS2 Thin Films for Sensing, Photovoltaic and Plasmonic Applications: A Review

et al. 2021

View full text Add to dashboard Cite

In the surge of recent successes of 2D materials following the rise of graphene, molybdenum disulfide (2D-MoS2) has been attracting growing attention from both fundamental and applications viewpoints, owing to the combination of its unique nanoscale properties. For instance, the bandgap of 2D-MoS2, which changes from direct (in the bulk form) to indirect for ultrathin films (few layers), offers new prospects for various applications in optoelectronics. In this review, we present the latest scientific advances in the field of synthesis and characterization of 2D-MoS2 films while highlighting some of their applications in energy harvesting, gas sensing, and plasmonic devices. A survey of the physical and chemical processing routes of 2D-MoS2 is presented first, followed by a detailed description and listing of the most relevant characterization techniques used to study the MoS2 nanomaterial as well as theoretical simulations of its interesting optical properties. Finally, the challenges related to the synthesis of high quality and fairly controllable MoS2 thin films are discussed along with their integration into novel functional devices.

show abstract

Section: Chemical Vapor Depositionmentioning

confidence: 99%

Recent Progress in the Synthesis of MoS2 Thin Films for Sensing, Photovoltaic and Plasmonic Applications: A Review

et al. 2021

View full text Add to dashboard Cite

show abstract

“…MoS 2 can be synthesized by the thermolysis of (NH 4 ) 2 MoS 4 . [163][164][165][166] From 400 C to 800 C, MoS 2 nanoakes can be grown from monolayer to few layers (4-6 layers) with the lateral area up to tens of nanometers. Hence, tuning the temperature can effectively lead to different layers of MoS 2 stacks.…”

Section: Cvdmentioning

confidence: 99%

“…The study of the growth mechanism of MoS 2 akes reveals that vapor MoS 2 can directly precipitate on substrates under the sufficient sulfur conditions, while an insufficient sulfur condition results in the presence of solid intermediates. 166 Volatile precursors have been used for WS 2 nanotube fabrication, leading to complete mixing of the precursors and precise controlling of supersaturation. 167 The H 2 pulse was employed to alter the reduction environment of WSe 2 and enhance the WO 3Àx ux.…”

Section: Cvdmentioning

confidence: 99%

Flexible electronics based on 2D transition metal dichalcogenides

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Similarly, vertically aligned MoS 2 and its hetero structures with MoO x , TiO 2 , ZnO, g-C 3 N 4 , and GaN demon strated high-performance PEC water splitting applications due to their tunable physicochemical properties. [152,[229][230][231][232][233][234][235] From PEC water oxidation studies, Fang et al revealed that a 60-fold enhancement in photocurrent density can be achieved for the carbon-doped vertically aligned BN nanosheets as compared to the BN powder films deposited by traditional approaches. [53] Comparative studies evidenced the significant enhancement of PEC performance of NbS 2 nanosheet arrays/Si nanowires with a solar-to-hydrogen conversion efficiency of 2.6% and chronoamperometric stability over 10 000 s. [236]…”

Section: Photocatalysismentioning

confidence: 99%

“…Similarly, vertically aligned MoS 2 and its heterostructures with MoO x , TiO 2 , ZnO, g‐C 3 N 4 , and GaN demonstrated high‐performance PEC water splitting applications due to their tunable physicochemical properties. [ 152,229–235 ] From PEC water oxidation studies, Fang et al. revealed that a 60‐fold enhancement in photocurrent density can be achieved for the carbon‐doped vertically aligned BN nanosheets as compared to the BN powder films deposited by traditional approaches.…”

Section: Applications Of Vertically Aligned 2d Materialsmentioning

confidence: 99%

Vertically Aligned Graphene‐Analogous Low‐Dimensional Materials: A Review on Emerging Trends, Recent Developments, and Future Perspectives

Shinde

Samal

Rout

2022

Adv Materials Inter

View full text Add to dashboard Cite

2D materials currently includes graphene, transition metal dichalcogenides (TMDs), hexagonal boron nitride (h-BN), 2D carbides/nitrides (MXenes), monoelemental Xenes, and perovskites. [2][3][4][5][6] These families opened new horizons for advanced applications since they have unusual electronic, mechanical, and optical properties. Though these materials have layered structures, yet their diversity in properties highly depends on their composition and phases.Graphene owns interesting properties like large surface area, dangling bond-free surface, high carrier mobility, high optical absorption coefficient, high Young's modulus, and high thermal conductivity. [7] However, the zero bandgap and semimetal properties of graphene limit its application in switching devices. h-BN attracted magnetized attention due to its superb chemical stability and intrinsic insulation. [8] As one of the most studied families, TMDs offer diversity in compositions, and phases, which exhibit many technologically interesting properties. [9][10][11] Among TMDs, MoS 2 is the most examined and well-explored material due to its robustness and semiconducting properties. TMDs offer a unique combination of atomic-scale thickness, strong spin-orbit coupling, sizeable bandgap, and favorable optoelectronic properties for numerous applications. [12] MXenes represent a large family of 2D materials whose several structures were predicted theoretically, while several of them have been realized experimentally also such as Ti

show abstract

Elucidating the mechanism for the chemical vapor deposition growth of vertical MoO2/MoS2 flakes toward photoelectrochemical applications

Cited by 25 publications

References 30 publications

Recent Progress in the Synthesis of MoS2 Thin Films for Sensing, Photovoltaic and Plasmonic Applications: A Review

Recent Progress in the Synthesis of MoS2 Thin Films for Sensing, Photovoltaic and Plasmonic Applications: A Review

Flexible electronics based on 2D transition metal dichalcogenides

Vertically Aligned Graphene‐Analogous Low‐Dimensional Materials: A Review on Emerging Trends, Recent Developments, and Future Perspectives

Contact Info

Product

Resources

About