High responsivity in MoS2 phototransistors based on charge trapping ...
2020年12月18日 · Here, MoS2 phototransistors with a dual-functioning HfO2 dielectric and charge-trapping layer achieve a responsivity of 1.1×106, due to an enhanced photogating effect from band edge alignment...
High Responsivity in Monolayer MoS2 Photodetector via …
2023年2月3日 · Herein, we report a facile and effective approach to control carrier trapping, resulting in a high-responsive low-power photodetection considering monolayer MoS 2 as the photoactive material. Implementing the gate bias as a stream of pulses, the photogating and photoconductive effects become simultaneously enhanced, which could provide an ...
Self-sensing, tunable monolayer MoS2 nanoelectromechanical …
2019年10月23日 · Here, we study the dynamic electromechanical response of NEMS resonators based on monolayer MoS 2 fabricated in the form of resonant channel transistors. Devices show resonance in the range of...
Ultra-scaled phototransistors based on monolayer MoS2
2023年10月20日 · In this work, we report a low-power and ultra-scaled phototransistor based on monolayer MoS 2 with a large photoresponse and high dynamic range. The realization of such high performance metrics is attributed to the usage of Al 2 O 3 as a high- k gate dielectric.
Sensitized monolayer MoS2 phototransistors with ultrahigh responsivity ...
Herein, we proposed a sensitized-MoS 2 photodetector consisting of a monolayer MoS 2 transport channel sensitizing with few-layer MoS 2 on top; this photodetector exhibited a very high responsivity of ∼10 4 A W −1 (at negative V g) and ∼10 5 –10 6 A W −1 (at zero and positive V g) due to improved photon absorption and enhanced ...
Ultrasensitive photodetectors based on monolayer MoS2 | Nature ...
2013年6月9日 · Here, we demonstrate ultrasensitive monolayer MoS 2 phototransistors with improved device mobility and ON current. Our devices show a maximum external photoresponsivity of 880 A W −1 at a...
Van der Waals Coupled Organic Molecules with Monolayer MoS2 …
2018年4月12日 · The derived MoS 2 detector then exhibits significantly improved photoresponse speed by more than 3 orders (from over 20 s to less than 8 ms for the decay) and a high responsivity of 430 A/W after Al 2 O 3 passivation. It is also demonstrated that the device could be further tailored to be 2–10-fold more sensitive without severely sacrificing ...
High-responsivity photodetector based on scrolling monolayer MoS2 ...
2021年12月13日 · In this study, the encapsulation of CQDs in MoS 2 -NS for high-performance photodetectors was fabricated by a simple method, which merely needs one droplet of CQDs solution to scroll monolayer MoS 2 nanosheets on soda-lime glass.
Monolayer MoS2/GaAs heterostructure self-driven photodetector with ...
2016年5月1日 · In this communication, we design a simple and high performance self-driven photodetector by transferring monolayer MoS 2 onto GaAs, which can detect photons from ultraviolet to visible light. The responsivity and detectivity reach 321 mA/W and 3.5×10 13 Jones for the incident light with wavelength of 635 nm, respectively.
Broadband, Ultra-High-Responsive Monolayer MoS2/SnS2 …
2022年3月29日 · Photoresponsivity of the device for UV, visible, and NIR region is found to be ∼278, ∼ 435, and ∼189 A/W, respectively. Fabricated devices showed maximum responsivity under the visible region attributed to the high absorbance of monolayer MoS 2. The response time of the fabricated device is measured as ∼100 ms.
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