High-performance ultraviolet-visible photodetector with high sensitivity and fast response speed based on MoS2-on-ZnO photogating heterojunction

Zhang, Xinglai; Li, Jing; Yang, Liu; Song, Yandong; Feng, Siyu; Feng, Lizhi; Liu, Zi-Tong; Fu, Zhengwei; Jiang, Xin; Liu, Baodan

doi:10.1007/s42864-022-00139-4

Cited by 28 publications

(3 citation statements)

References 43 publications

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“…The main performance data of PdTe 2 and ZnO-based photodetectors are listed in Figure e and Table S1. Compared to the PdTe 2 -based device, our device has a 10–10 6 higher response time and an extended detection range to UV. ,, Compared to the ZnO/TMDC heterojunction device, the ZnO@PdTe 2 /Si heterojunction has a wider response range (254 nm–1.55 μm), and the D * and response/recovery times are improved by 10–10 3 . − …”

Section: Resultsmentioning

confidence: 99%

Self-Powered ZnO@PdTe₂/Si Heterojunction Photodetector with an Ultrafast Response for Color Imaging and Optical Communication

Zhang,

Wu,

Wang

et al. 2024

ACS Appl. Mater. Interfaces

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Broadband photodetectors have attracted much attention due to their multispectral response properties and show great potential in the fields of optical sensing, multispectral imaging, and optical communications. Palladium telluride (PdTe 2 ) is highly competitive in broadband detection due to its tunable bandgap and nonlinear optical properties. However, the low response speed hinders further improvement in the performance of PdTe 2 -based broadband photodetectors. In this work, we present island-type ZnO@PdTe 2 composites on Si as a heterojunction photodetector exhibiting highly sensitive photodetection capabilities in a wide band from the solar-blind region (254 nm) to the short-infrared (1.55 μm). Due to the island-type morphology of the ZnO@PdTe 2 composites effectively enhancing light absorption and the ZnO@PdTe 2 /Si stacks forming a type-II heterojunction accelerating carrier separation, the devices have an ultrafast response (1.58/1.34 μs), a detectivity of up to 1.56 × 10 13 Jones, and a sensitivity of up to 10 7 cm 2 /W. A triple-channel color imaging system and a dual-channel data transmission system were developed based on the excellent and stable performance of the device. This study demonstrates the great potential of ZnO@PdTe 2 /Si vertical heterojunction photodetectors for high-speed, wideband, multiscenario optical communication.

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Section: Resultsmentioning

confidence: 99%

Self-Powered ZnO@PdTe₂/Si Heterojunction Photodetector with an Ultrafast Response for Color Imaging and Optical Communication

Zhang,

Wu,

Wang

et al. 2024

ACS Appl. Mater. Interfaces

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“…Nevertheless, the weak light absorption, limited carrier lifetime, and On the whole, by selectively trapping a single type of photocarriers to achieve spatial dissociation of photogenerated electrons and holes, the encounter probability of photoexcited electrons and holes can be markedly reduced, thereby significantly extending the lifetime of the non-equilibrium carriers and providing new ideas for improving the performance of 2DLM photodetectors. Thus far, in addition to forming heterogeneous puddles, various strategies have been harnessed to induce selective carrier trapping, including integration of floating channels [187][188][189][190][191], introduction of lattice defects [192], surface modification of quantum dots/metal nanoparticles [75,193,194], surface oxidation [195], etc. In the future, these techniques can be developed for various 2DLM photodetectors to achieve further performance breakthroughs.…”

Section: Discussionmentioning

confidence: 99%

Emerging Schemes for Advancing 2D Material Photoconductive-Type Photodetectors

Liang,

Ma,

et al. 2023

Materials

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By virtue of the widely tunable band structure, dangling-bond-free surface, gate electrostatic controllability, excellent flexibility, and high light transmittance, 2D layered materials have shown indisputable application prospects in the field of optoelectronic sensing. However, 2D materials commonly suffer from weak light absorption, limited carrier lifetime, and pronounced interfacial effects, which have led to the necessity for further improvement in the performance of 2D material photodetectors to make them fully competent for the numerous requirements of practical applications. In recent years, researchers have explored multifarious improvement methods for 2D material photodetectors from a variety of perspectives. To promote the further development and innovation of 2D material photodetectors, this review epitomizes the latest research progress in improving the performance of 2D material photodetectors, including improvement in crystalline quality, band engineering, interface passivation, light harvesting enhancement, channel depletion, channel shrinkage, and selective carrier trapping, with the focus on their underlying working mechanisms. In the end, the ongoing challenges in this burgeoning field are underscored, and potential strategies addressing them have been proposed. On the whole, this review sheds light on improving the performance of 2D material photodetectors in the upcoming future.

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“…However, the above strategies either use expensive fabrication machines or contain possibly toxic organic polymer materials, which may prohibit the practical application [ 35 ]. To our best knowledge, the research of multifunctional ZnO microstructures or nanoarrays thin films with super-hydrophilic, antifouling and antibacterial properties has not been reported yet [ 36 ]. Moreover, even different morphologies of ZnO (such as microrods, nanowires, nanotubes, nanosheets, nanoribbons, and their combined structures) prepared by different methods have been reported [ 37 , 38 , 39 , 40 , 41 ], the exploration of underwater oleophobic and self-cleaning antifouling properties in ZnO microstructures is still in its infancy possibly due to the difficulty in controlling morphology and the selective growth of substrate materials.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Hydrophilic ZnO Microstructure Film with Underwater Oleophobic and Self-Cleaning Antifouling Properties

Li,

Xue,

Wang

et al. 2024

Nanomaterials

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Super-hydrophilic and oleophobic functional materials can prevent pollution or adsorption by repelling oil, and have good circulation. However, traditional strategies for preparing these functional materials either use expensive fabrication machines or contain possibly toxic organic polymers, which may prohibit the practical application. The research of multifunctional ZnO microstructures or nanoarrays thin films with super-hydrophilic, antifouling, and antibacterial properties has not been reported yet. Moreover, the exploration of underwater oleophobic and self-cleaning antifouling properties in ZnO micro/nanostructures is still in its infancy. Here, we prepared ZnO microstructured films on fluorine-doped tin oxide substrates (F-ZMF) for the development of advanced self-cleaning type super-hydrophilic and oleophobic materials. With the increase of the accelerators, the average size of the F-ZMF microstructures decreased. The F-ZMF shows excellent self-cleaning performance and hydrophilic (water contact angle ≤ 10°) and oleophobic characteristics in the underwater antifouling experiment. Under a dark condition, F-ZMF-4 showed good antibacterial effects against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) with inhibition rates of 99.1% and 99.9%, respectively. This study broadens the application scope of ZnO-based material and provides a novel prospect for the development of self-cleaning super-hydrophilic and oleophobic materials.

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High-performance ultraviolet-visible photodetector with high sensitivity and fast response speed based on MoS2-on-ZnO photogating heterojunction

Cited by 28 publications

References 43 publications

Self-Powered ZnO@PdTe₂/Si Heterojunction Photodetector with an Ultrafast Response for Color Imaging and Optical Communication

Self-Powered ZnO@PdTe₂/Si Heterojunction Photodetector with an Ultrafast Response for Color Imaging and Optical Communication

Emerging Schemes for Advancing 2D Material Photoconductive-Type Photodetectors

Antibacterial Hydrophilic ZnO Microstructure Film with Underwater Oleophobic and Self-Cleaning Antifouling Properties

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High-performance ultraviolet-visible photodetector with high sensitivity and fast response speed based on MoS2-on-ZnO photogating heterojunction

Cited by 28 publications

References 43 publications

Self-Powered ZnO@PdTe2/Si Heterojunction Photodetector with an Ultrafast Response for Color Imaging and Optical Communication

Self-Powered ZnO@PdTe2/Si Heterojunction Photodetector with an Ultrafast Response for Color Imaging and Optical Communication

Emerging Schemes for Advancing 2D Material Photoconductive-Type Photodetectors

Antibacterial Hydrophilic ZnO Microstructure Film with Underwater Oleophobic and Self-Cleaning Antifouling Properties

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Self-Powered ZnO@PdTe₂/Si Heterojunction Photodetector with an Ultrafast Response for Color Imaging and Optical Communication

Self-Powered ZnO@PdTe₂/Si Heterojunction Photodetector with an Ultrafast Response for Color Imaging and Optical Communication