Ultrafast-Speed MoS₂/CuO Photodetector Based on Strongly Coupled Heterojunction

Yang, Hui; Xu, Zhe; Shi, Kaixi; Li, Jinhua; Jiang, Zhenfeng; Zhai, Yingjiao; Fang, Xuan; Wang, Zhiyang

doi:10.1109/led.2024.3435842

IEEE Electron Device Lett.

2024

DOI: 10.1109/led.2024.3435842

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Ultrafast-Speed MoS₂/CuO Photodetector Based on Strongly Coupled Heterojunction

Hui Yang,

Zhe Xu,

Kaixi Shi

et al.

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Plasma-Enhanced Interfacial Electric Field for High-Performance MoS₂/p-Si Photovoltaic Photodetectors

Wang,

Shi,

et al. 2024

ACS Appl. Nano Mater.

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Localized surface plasmon resonance (LSPR) has the characteristics of a local electromagnetic field enhancement, which is extremely important in developing miniaturized high-performance photodetectors (PDs). However, most LSPR effects are used to improve the light absorption of PDs, while the incidental problem of slow response speed is often ignored. Here, we designed to construct a strong built-in electric field (BEF) within the heterojunction to solve this problem. This work demonstrates an Au@MoS 2 /p-Si photovoltaic PD with both high responsivity and fast response speed. Noticeably, Au nanoparticles (Au NPs) integrated on the MoS 2 surface can induce LSPR to pass through monolayer MoS 2 (1L-MoS 2 ) to enhance the interfacial BEF of MoS 2 /p-Si, as confirmed by finite-difference time-domain simulations. Our device demonstrates simultaneous improvements in both photoresponse and response speed without sacrificing the interface quality. The photovoltaic PD exhibits excellent performance with a responsivity of 1498 mA/W, a detectivity of 1.96 × 10 12 Jones, and an ultrafast response time of 3 μs, respectively. This work realizes the possibility of LSPR to enhance the interfacial BEF of heterojunctions and extends its application field to high-performance plasmonic PDs.

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Plasma-Enhanced Interfacial Electric Field for High-Performance MoS₂/p-Si Photovoltaic Photodetectors

Wang,

Shi,

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

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Ultrafast-Speed MoS₂/CuO Photodetector Based on Strongly Coupled Heterojunction

Cited by 1 publication

References 31 publications

Plasma-Enhanced Interfacial Electric Field for High-Performance MoS₂/p-Si Photovoltaic Photodetectors

Plasma-Enhanced Interfacial Electric Field for High-Performance MoS₂/p-Si Photovoltaic Photodetectors

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Ultrafast-Speed MoS₂/CuO Photodetector Based on Strongly Coupled Heterojunction

Cited by 1 publication

References 31 publications

Plasma-Enhanced Interfacial Electric Field for High-Performance MoS2/p-Si Photovoltaic Photodetectors

Plasma-Enhanced Interfacial Electric Field for High-Performance MoS2/p-Si Photovoltaic Photodetectors

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Product

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Plasma-Enhanced Interfacial Electric Field for High-Performance MoS₂/p-Si Photovoltaic Photodetectors

Plasma-Enhanced Interfacial Electric Field for High-Performance MoS₂/p-Si Photovoltaic Photodetectors