Growth of CdSe/MoS2 vertical heterostructures for fast visible-wavelength photodetectors

Yuan, Yide; Zhang, Xuehong; Liu, Huawei; Yang, Tiefeng; Zheng, Weihao; Zheng, Biyuan; Jiang, Feng; Li, Lihui; Li, Dong; Zhu, Xiaoli; Pan, Anlian

doi:10.1016/j.jallcom.2019.152309

Cited by 33 publications

(23 citation statements)

References 28 publications

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“…362 Likely, CdSe nanoplates were vertically assembled on MoS 2 monolayer to develop vertical CdSe/MoS 2 heterostructures. 363 CdSe/MoS 2 heterostructure-based photodetector exhibited photoresponsivity of 1.63 A W À1 and fast response speed of 370 ms. In another study, 2D MoS 2 nanosheet and 0D CdSe nanocrystal-based hybrid phototransistor were developed which showed substantially enhanced photoresponsivity of 2.5 Â 10 5 A W À1 and the rise/fall times of 60 ms. 323 The photocurrent of MoS 2 /CdSe hybrid photodetector increased with increasing laser power intensities at 405 nm.…”

Section: Mos 2 /Inorganic Semiconductor Heterostructuresmentioning

confidence: 99%

A review of molybdenum disulfide (MoS₂) based photodetectors: from ultra-broadband, self-powered to flexible devices

Nalwa¹

2020

RSC Adv.

253

146

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Section: Mos 2 /Inorganic Semiconductor Heterostructuresmentioning

confidence: 99%

A review of molybdenum disulfide (MoS₂) based photodetectors: from ultra-broadband, self-powered to flexible devices

Nalwa¹

2020

RSC Adv.

253

146

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“…Highly dense and very large CdSe nanoplates have been assembled vertically onto a Mo

S_{2}

monolayer through a two‐step CVD approach, showing high efficiency with strong photo responsiveness (12 A/W) and ultra‐fast photoresponse speed (∼370 μs) [73] . Highly pure and crystalline Cd

S_{x} {S e}_{1 - x}

nanostructures have been successfully synthesized via CVD, adjusting x to tune the material bandgap and the relationship with the constant lattice [74]…”

Section: Synthesis Methods Of Cdse Qdsmentioning

confidence: 99%

Cadmium Selenide Quantum Dots for Solar Cell Applications: A Review

Rahman

Karim

Alharbi

et al. 2021

Chemistry An Asian Journal

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Quantum dot-sensitized solar cells (QDSSCs) are significant energy-producing devices due to their remarkable capability to growing sunshine and produce many electrons/ holes pairs, easy manufacturing, and low cost. However, their power conversion efficiency (4%) is usually worse than that of dye-sensitized solar cells (� 12%); this is mainly due to their narrow absorption areas and the charge recombination happening at the quantum dot/electrolyte and TiO 2 /electrolyte interfaces. Thus, to raise the power conversion efficiency of QDSSC, new counter electrodes, working electrodes, sensitizers, and electrolytes are required. CdSe thin films have shown great potential for use in photodetectors, solar cells, biosensors, light-emitting diodes, and biomedical imaging systems. This article reviews the CdSe nanomaterials that have been recently used in QDSSCs as sensitizers. Their size, design, morphology, and density all noticeably influence the electron injection efficiency and light-harvesting capacity of these devices. A detailed overview of the development of QDSSCs is presented, including their basic principles, the synthesis methods for their CdSe quantum dots, and the device fabrication processes. Finally, the challenges and opportunities of realizing high-performance CdSe QDSSCs are discussed and some future directions are suggested.

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“…Furthermore, the preparation of lateral heterostructures with atomic sharp interface remains challenging because of the existence of the alloy at interface. Recently, the vapour phase methods have been utilized to prepare the vertical heterostructures with specific stacking orders and lateral heterostructures with sharp 1D interface [101][102][103][104][105][106][107][108][109][110][111][112][113][114].…”

Section: The Fabrication Of Heterostructures Based On 2d Mdcsmentioning

confidence: 99%

Recent progress about 2D metal dichalcogenides: Synthesis and application in photodetectors

Pei

Chen

et al. 2020

Nano Res.

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In recent years, two-dimensional (2D) layered metal dichalcogenides (MDCs) have received enormous attention on account of their excellent optoelectronic properties. Especially, various MDCs can be constructed into vertical/lateral heterostructures with many novel optical and electrical properties, exhibiting great potential for the application in photodetectors. Therefore, the batch production of 2D MDCs and their heterostructures is crucial for the practical application. Recently, the vapour phase methods have been proved to be dependable for growing large-scale MDCs and related heterostructures with high quality. In this paper, we summarize the latest progress about the synthesis of 2D MDCs and their heterostructures by vapour phase methods. Particular focus is paid to the control of influence factors during the vapour phase growth process. Furthermore, the application of MDCs and their heterostructures in photodetectors with outstanding performance is also outlined. Finally, the challenges and prospects for the future application are presented.

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Growth of CdSe/MoS2 vertical heterostructures for fast visible-wavelength photodetectors

Cited by 33 publications

References 28 publications

A review of molybdenum disulfide (MoS₂) based photodetectors: from ultra-broadband, self-powered to flexible devices

A review of molybdenum disulfide (MoS₂) based photodetectors: from ultra-broadband, self-powered to flexible devices

Cadmium Selenide Quantum Dots for Solar Cell Applications: A Review

Recent progress about 2D metal dichalcogenides: Synthesis and application in photodetectors

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Growth of CdSe/MoS2 vertical heterostructures for fast visible-wavelength photodetectors

Cited by 33 publications

References 28 publications

A review of molybdenum disulfide (MoS2) based photodetectors: from ultra-broadband, self-powered to flexible devices

A review of molybdenum disulfide (MoS2) based photodetectors: from ultra-broadband, self-powered to flexible devices

Cadmium Selenide Quantum Dots for Solar Cell Applications: A Review

Recent progress about 2D metal dichalcogenides: Synthesis and application in photodetectors

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Product

Resources

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A review of molybdenum disulfide (MoS₂) based photodetectors: from ultra-broadband, self-powered to flexible devices

A review of molybdenum disulfide (MoS₂) based photodetectors: from ultra-broadband, self-powered to flexible devices