Related references
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Article
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(2022)
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Yuning Li et al.
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Xuan Ji et al.
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Summary: This article reports on the fabrication and control of MoS2/MoO2 nanocomposites with various optoelectronic properties. Different compositions, shapes, and crystalline structures were obtained using chemical vapor deposition (CVD) method. The fabricated materials exhibited tunable band gaps and reflectance based on the MoO2 content. The photoelectric properties were characterized by integrating the samples into photoconductive devices, achieving high photoresponse, responsivity, and detectivity, with relatively fast response times.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
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Summary: We report resonantly enhanced defect modes in the Raman spectrum of molybdenum disulfide (MoS2), which are similar to the D mode in graphene. These modes become active at edges under indirect resonance conditions and can be used for sensitive defect quantification and differentiation of edge structures. The technique also allows characterization of the structure-dependent properties of MoS2 nanomaterials and provides insights into the low energy landscape of the conduction band.
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CURRENT APPLIED PHYSICS
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Summary: A series of self-powered photodetectors with adjustable spectral responses were fabricated in this study by reassembling and disassembling ZnO/perovskite heterojunctions. These photodetectors showed good responsivity and fast response speed at 0 V operating voltage. In addition, the practical imaging ability of a self-powered photodetector was investigated and a high-fidelity image was obtained. This work provides a method and idea for building future multifunctional pluggable photoelectric devices with limited material building blocks.
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Vaishnavi Krishnamurthi et al.
Summary: The research explores the strategy of combining p-type and n-type 2D materials to form versatile p-n junctions, and demonstrates the photodetection capabilities of heterostructures formed from black phosphorus and molybdenum disulfide across a UV-vis wavelength range.
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Article
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Zhang-Kai Zhou et al.
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Qiushi Feng et al.
Summary: A novel organic superacid, trifluoromethanesulfonic (TFMS), has been found to significantly increase the photoluminescence quantum yields of monolayer MoS2 and WS2, with the mechanism attributed to TFMS-induced p-type doping and sulfur vacancy reparation. The results not only enrich the functional superacid family for improving the luminescence performance of transition-metal dichalcogenides, but also clearly reveal the photoluminescence enhancement mechanism of superacid-treated TMDs.
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Hao Chen et al.
Summary: This study utilizes large-area monolayer MoS2 to enhance nonlinear response and proposes a new pump strategy for achieving spontaneous four-wave mixing in the visible spectral range. The structure is driven by excitonic photoluminescence pump for efficient mixing generation, validated by the microcavity structure enhancement. With the emission spectrum controllable through temperature, this work shows great potential for various applications.
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Zixing Zou et al.
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Haoyun Wang et al.
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Weidong Song et al.
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Wei Lu et al.
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JOURNAL OF ALLOYS AND COMPOUNDS
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Yanqiao Ding et al.
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JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Optics
Chaoyue Liu et al.
Summary: This review discusses recent progress in Si/2DM PDs operating in the near-infrared to mid-infrared wavelength range, covering operation mechanisms, device configurations, waveguide-integrated PDs, surface-illuminated PDs, and outlook for 2DM PDs on silicon.
LIGHT-SCIENCE & APPLICATIONS
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Jiahui Ji et al.
Summary: Molybdenum-based materials with abundant electronic properties have been extensively studied for environmental pollutant control. The properties of different Mo-based materials have been fully exerted in various technical means. Possible methods to enhance the activity of Mo-based materials are discussed to provide direction for the design of highly efficient Mo-based catalysts in the future.
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Kaixiang Shu et al.
Summary: In this work, high-performance self-powered photodetectors with spectral coverage ranging from visible to near-infrared range have been successfully fabricated by combining a p-type Ge0.9Sn0.1 thin film with an n-type multilayered MoS2 into a type-II band alignment. The constructed P-N heterojunction showed superior zero-biased photodetection performance with a fast response time, ultralow dark current, and high photoswitching ratio. This research provides promising candidates for self-powered photodetectors with broadband, fast speed, high sensitivity, and low power consumption.
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Xuesong Xu et al.
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