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Low‐dimensional nanomaterial/Si heterostructure‐based photodetectors
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AbstractDue to its excellent electrical and optical features, silicon (Si) is highly attractive for photodetector applications. The design and fabrication of low‐dimensional semiconductor/Si hybrid heterostructures provide a great platform for fabricating high‐performance photodetectors, thereby overcoming the inherent limitations of Si. This review focuses on state‐of‐the‐art Si heterostructure‐based photodetectors. It starts with the introduction of three different device configurations, that is, photoconductors, photodiodes, and phototransistors. Their working mechanisms and relative pros and cons are introduced, and the figures of merit of photodetectors are summarized. Then, we discuss the device physics/design, photodetection performance, and optimization strategies for Si‐based photodetectors. Finally, future challenges in the photodetector applications of Si‐based hybrid heterostructures are discussed.
Title: Low‐dimensional nanomaterial/Si heterostructure‐based photodetectors
Description:
AbstractDue to its excellent electrical and optical features, silicon (Si) is highly attractive for photodetector applications.
The design and fabrication of low‐dimensional semiconductor/Si hybrid heterostructures provide a great platform for fabricating high‐performance photodetectors, thereby overcoming the inherent limitations of Si.
This review focuses on state‐of‐the‐art Si heterostructure‐based photodetectors.
It starts with the introduction of three different device configurations, that is, photoconductors, photodiodes, and phototransistors.
Their working mechanisms and relative pros and cons are introduced, and the figures of merit of photodetectors are summarized.
Then, we discuss the device physics/design, photodetection performance, and optimization strategies for Si‐based photodetectors.
Finally, future challenges in the photodetector applications of Si‐based hybrid heterostructures are discussed.
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