Controllable p-type doping of 2D MoS<sub>2</sub><i>via</i> Sodium intercalation for optoelectronics

Ullah, Salman; Li, Ling; Wang, Yixiu; Yang, Xiaoyu; Tang, Mingwei; Xiang, Yuan; Yang, Qing

doi:10.1039/d2tc04317c

J. Mater. Chem. C

2023

DOI: 10.1039/d2tc04317c

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Controllable p-type doping of 2D MoS₂via Sodium intercalation for optoelectronics

Salman Ullah

Ling Li

Yixiu Wang

et al.

Abstract: We synthesized high-quality MoS2 flakes via the NaOH assisted CVD method. The morphological evolution of MoS2 flakes was investigated at different growth temperatures, and high-quality MoS2 were achieved with a photoresponsivity of 4.2 A W−1 and a specific detectivity of 8.1 × 108 Jones.

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Vanadium Metal Doping of Monolayer MoS₂ for p-Type Transistors and Fast-Speed Phototransistors

Xu,

Jian,

Liu

et al. 2024

ACS Appl. Mater. Interfaces

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Modulating the electrical properties of two-dimensional (2D) materials is a fundamental prerequisite for their development to advanced electronic and optoelectronic devices. Substitutional doping has been demonstrated as an effective method for tuning the band structure in monolayer 2D materials. Here, we demonstrate a facile selective-area growth of vanadium-doped molybdenum disulfide (V-doped MoS 2 ) flakes via pre-patterned vanadium-metal-assisted chemical vapor deposition (CVD). Optical microscopy characterization revealed the presence of flake arrays. Transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy were employed to identify the chemical composition and crystalline structure of as-grown flakes. Electrical measurements indicated a light p-type conduction behavior in monolayer V-doped MoS 2 . Furthermore, the response time of phototransistors based on V-doped MoS 2 monolayers exhibited a remarkable capability of 3 ms, representing approximately 3 orders of magnitude faster response than that observed in pure MoS 2 phototransistors. This work hereby provides a feasible approach to doping of 2D materials, promising a scalable pathway for the integration of these materials into emerging electronic and optoelectronic devices.

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Vanadium Metal Doping of Monolayer MoS₂ for p-Type Transistors and Fast-Speed Phototransistors

Xu,

Jian,

Liu

et al. 2024

ACS Appl. Mater. Interfaces

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show abstract

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Controllable p-type doping of 2D MoS₂via Sodium intercalation for optoelectronics

Cited by 1 publication

References 44 publications

Vanadium Metal Doping of Monolayer MoS₂ for p-Type Transistors and Fast-Speed Phototransistors

Vanadium Metal Doping of Monolayer MoS₂ for p-Type Transistors and Fast-Speed Phototransistors

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Controllable p-type doping of 2D MoS2via Sodium intercalation for optoelectronics

Cited by 1 publication

References 44 publications

Vanadium Metal Doping of Monolayer MoS2 for p-Type Transistors and Fast-Speed Phototransistors

Vanadium Metal Doping of Monolayer MoS2 for p-Type Transistors and Fast-Speed Phototransistors

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Product

Resources

About

Controllable p-type doping of 2D MoS₂via Sodium intercalation for optoelectronics

Vanadium Metal Doping of Monolayer MoS₂ for p-Type Transistors and Fast-Speed Phototransistors

Vanadium Metal Doping of Monolayer MoS₂ for p-Type Transistors and Fast-Speed Phototransistors