Hydrothermal synthesis of WS2/RGO sheet and their application in UV photodetector

Shelke, Nitin T.; Karche, B. R.

doi:10.1016/j.jallcom.2015.08.255

Cited by 46 publications

(14 citation statements)

References 71 publications

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“…[1,[18][19][20] GaSe is a p-type semiconductor with an indirect bandgap of 2.05 eV at the center of the Brilliouin zone, which is only 25 meV above the conduction band minimum. [1,[18][19][20] GaSe is a p-type semiconductor with an indirect bandgap of 2.05 eV at the center of the Brilliouin zone, which is only 25 meV above the conduction band minimum.…”

Section: High-performance Self-driven Photodetector Based On Graphenmentioning

confidence: 99%

“…Quanshan Lv, Faguang Yan, Xia Wei, and Kaiyou Wang* DOI: 10.1002/adom.201700490 high-responsivity photodetecting applications. [1,[18][19][20] GaSe is a p-type semiconductor with an indirect bandgap of 2.05 eV at the center of the Brilliouin zone, which is only 25 meV above the conduction band minimum. [21] Because the difference between direct and indirect band edges is so small, the electrons can be transferred between these two minimums with a small amount of energy.…”

Section: High-performance Self-driven Photodetector Based On Graphenmentioning

confidence: 99%

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High‐Performance, Self‐Driven Photodetector Based on Graphene Sandwiched GaSe/WS₂ Heterojunction

Yan

Xia

et al. 2017

Advanced Optical Materials

223

128

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Restacking the exfoliated 2D layered materials into complex heterostructures with new functionality has opened a new platform for materials engineering and device application. In this work, graphene sandwiched p‐GaSe/n‐WS2 vertical heterostructures are fabricated for photodetection. The devices show excellent performance on photodetection from ultraviolet to visible wavelength range, including high photoresponsivity (≈149 A W−1 at 410 nm), short response time of 37 µs, and self‐powered photodetection. The scanning photocurrent microscopy is also employed to investigate the photocurrent generation in the heterojunction and a significant enhancement of the photoresponse is found in the overlapping region. The results suggest that the graphene sandwiched vertical heterojunctions are promising in future novel optoelectronic devices applications.

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Section: High-performance Self-driven Photodetector Based On Graphenmentioning

confidence: 99%

Section: High-performance Self-driven Photodetector Based On Graphenmentioning

confidence: 99%

High‐Performance, Self‐Driven Photodetector Based on Graphene Sandwiched GaSe/WS₂ Heterojunction

Yan

Xia

et al. 2017

Advanced Optical Materials

223

128

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“…Very recently, transition metal disulfides (TMDs: WS 2 , MoS 2 , etc. ), as one of the graphene analogue, have attracted a great deal of attention [13][14][15][16][17][18][19]. Due to the energy band gap of TMDs changing from the indirect to direct band as reducing the number of layers, a series of exotic photonic properties emerge in few-layer TMDs, which cannot be observed in the bulk TMDs.…”

Section: A N U S C R I P Tmentioning

confidence: 99%

Facile synthesis of two-dimensional WS2 with reverse saturable absorption and nonlinear refraction properties in the PMMA matrix

Wei

Tian

Zhang

et al. 2016

Journal of Alloys and Compounds

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“…In addition, a solvothermalsynthesized MoS 2 /rGO heterostructure nanosheet absorber has been reported to exhibit a maximum RL of − 31.57 dB at a thickness of 2.5 mm [39]. Similarly, WS 2 -rGO heterostructure nanosheets could also be synthesized by the solvothermal method [34]; these nanosheets have been used for electrocatalytic hydrogen evolution [40][41][42][43]. However, the dielectric loss and microwave absorption properties of WS 2 -rGO systems have not been studied.…”

Section: Introductionmentioning

confidence: 99%

Lightweight and High-Performance Microwave Absorber Based on 2D WS2–RGO Heterostructures

et al. 2019

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HIGHLIGHTS • WS 2-rGO nanosheets with ultra-small thicknesses and ultra-lightweight, were successfully prepared by a facile hydrothermal method. • The WS 2-rGO isomorphic heterostructures exhibited remarkable microwave absorption properties. ABSTRACT Two-dimensional (2D) nanomaterials are categorized as a new class of microwave absorption (MA) materials owing to their high specific surface area and peculiar electronic properties. In this study, 2D WS 2-reduced graphene oxide (WS 2-rGO) heterostructure nanosheets were synthesized via a facile hydrothermal process; moreover, their dielectric and MA properties were reported for the first time. Remarkably, the maximum reflection loss (RL) of the sample-wax composites containing 40 wt% WS 2-rGO was − 41.5 dB at a thickness of 2.7 mm; furthermore, the bandwidth where RL < − 10 dB can reach up to 13.62 GHz (4.38-18 GHz). Synergistic mechanisms derived from the interfacial dielectric coupling and multiple-interface scattering after hybridization of WS 2 with rGO were discussed to explain the drastically enhanced microwave absorption performance. The results indicate these lightweight WS 2-rGO nanosheets to be potential materials for practical electromagnetic wave-absorbing applications.

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Hydrothermal synthesis of WS2/RGO sheet and their application in UV photodetector

Cited by 46 publications

References 71 publications

High‐Performance, Self‐Driven Photodetector Based on Graphene Sandwiched GaSe/WS₂ Heterojunction

High‐Performance, Self‐Driven Photodetector Based on Graphene Sandwiched GaSe/WS₂ Heterojunction

Facile synthesis of two-dimensional WS2 with reverse saturable absorption and nonlinear refraction properties in the PMMA matrix

Lightweight and High-Performance Microwave Absorber Based on 2D WS2–RGO Heterostructures

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Hydrothermal synthesis of WS2/RGO sheet and their application in UV photodetector

Cited by 46 publications

References 71 publications

High‐Performance, Self‐Driven Photodetector Based on Graphene Sandwiched GaSe/WS2 Heterojunction

High‐Performance, Self‐Driven Photodetector Based on Graphene Sandwiched GaSe/WS2 Heterojunction

Facile synthesis of two-dimensional WS2 with reverse saturable absorption and nonlinear refraction properties in the PMMA matrix

Lightweight and High-Performance Microwave Absorber Based on 2D WS2–RGO Heterostructures

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High‐Performance, Self‐Driven Photodetector Based on Graphene Sandwiched GaSe/WS₂ Heterojunction

High‐Performance, Self‐Driven Photodetector Based on Graphene Sandwiched GaSe/WS₂ Heterojunction