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Showing 1–10 of 10 results
Advanced filters: Author: Runzhang Xie Clear advanced filters

  • While excitonic semiconductors offer appealing optical properties, their application for competitive optoelectronic devices has remained limited. Here, the authors report the realization of broadband exciton-polariton photodiodes based on a layered excitonic semiconductor, WS2, contacted by tin-doped indium oxide in an open optical cavity design, showing ~MHz bandwidth at room temperature.

    • Qixiao Zhao
    • Adam D. Alfieri
    • Weida Hu
    ResearchOpen Access
    Nature Communications
    Volume: 17, P: 1-9

  • The avalanche or carrier-multiplication effect has the potential to improve the performance of photodetectors and solar cells, but usually requires high threshold energies. Here, the authors report stepwise WSe2 homojunctions exhibiting threshold energies approaching the semiconductor bandgap at room temperature.

    • Hailu Wang
    • Hui Xia
    • Wei Lu
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-9

  • Perception of spectrally distinctive features can be achieved using arrays of back-to-back photodiodes that have a spectral response that can be electrically tuned.

    • Fang Wang
    • Jin Wang
    • Weida Hu
    News & Views
    Nature Electronics
    Volume: 7, P: 634-635

  • Band-engineered van der Waals heterostructures that block dark current without suppressing photocurrent can be used to build detectors with high room-temperature detectivity for visible light and blackbody infrared light.

    • Yunfeng Chen
    • Yang Wang
    • Weida Hu
    Research
    Nature Electronics
    Volume: 4, P: 357-363

  • Critical band-to-band tunneling is demonstrated at the van der Waals interface, with potential applications in optoelectronic memory.

    • Hangyu Xu
    • Runzhang Xie
    • Weida Hu
    ResearchOpen Access
    Light: Science & Applications
    Volume: 14, P: 1-10

  • The lack of a standardized approach for the characterization of the performance of 2D photodetectors represents an important obstacle towards their industrialization. Here, the authors propose practical guidelines to characterize their figures of merit and analyse common situations where their performance can be misestimated.

    • Fang Wang
    • Tao Zhang
    • Weida Hu
    ReviewsOpen Access
    Nature Communications
    Volume: 14, P: 1-9

  • Based on the configurable circular-polarization-dependent optoelectronic silent state, our integrated circular polarization detector achieves a near-infinite circular polarization extinction ratio and an ultralow noise equivalent light ellipticity difference of 0.009° Hz−1/2.

    • Yonghao Bu
    • Xiansong Ren
    • Xiaoshuang Chen
    ResearchOpen Access
    Light: Science & Applications
    Volume: 12, P: 1-10