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- W3136955560 abstract "Abstract Recently, van der Waals heterostructures (vdWHs) based on transition‐metal dichalcogenides (TMDs) have attracted significant attention owing to their superior capabilities and multiple functionalities. Herein, a novel vdWH field‐effect transistor (FET) composed of molybdenum ditelluride (MoTe 2 ) and palladium diselenide (PdSe 2 ) is studied for highly sensitive photodetection performance in the broad visible and near‐infrared (VNIR) region. A high rectification ratio of 6.3 × 10 5 is obtained, stemming from the sharp interface and low Schottky barriers of the MoTe 2 /PdSe 2 vdWHs. It is also successfully demonstrated that the vdWH FET exhibits highly sensitive photo‐detecting abilities, such as noticeably high photoresponsivity (1.24 × 10 5 A W −1 ), specific detectivity (2.42 × 10 14 Jones), and good external quantum efficiency (3.5 × 10 6 ), not only due to the intra‐TMD band‐to‐band transition but also due to the inter‐TMD charge transfer (CT) transition. Further, rapid rise (16.1 µs) and decay (31.1 µs) times are obtained under incident light with a wavelength of 2000 nm due to the CT transition, representing an outcome one order of magnitude faster than values currently in the literature. Such TMD‐based vdWH FETs would improve the photo‐gating characteristics and provide a platform for the realization of a highly sensitive photodetector in the broad VNIR region." @default.
- W3136955560 created "2021-03-29" @default.
- W3136955560 creator A5015504249 @default.
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- W3136955560 creator A5034298479 @default.
- W3136955560 creator A5067573568 @default.
- W3136955560 creator A5070086616 @default.
- W3136955560 date "2021-03-16" @default.
- W3136955560 modified "2023-10-14" @default.
- W3136955560 title "Highly Sensitive, Ultrafast, and Broadband Photo‐Detecting Field‐Effect Transistor with Transition‐Metal Dichalcogenide van der Waals Heterostructures of MoTe<sub>2</sub> and PdSe<sub>2</sub>" @default.
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- W3136955560 doi "https://doi.org/10.1002/advs.202003713" @default.
- W3136955560 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8188193" @default.
- W3136955560 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34105276" @default.
- W3136955560 hasPublicationYear "2021" @default.
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