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Showing 1–9 of 9 results
Advanced filters: Author: Haodi Niu Clear advanced filters

  • Luminescent cerium(III) compounds with 5d-4f transition have received extensive interest in phosphor, photocatalysis, and electroluminescence, but pushing emission beyond 700 nm is challenging. Here, the authors report a series of molecular Ce(III) complexes with S-coordinating dithiobiuret ligands that emit at 725 nm with 31% quantum efficiency.

    • Jiayin Zheng
    • Haodi Niu
    • Zhiwei Liu
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-10

  • In-sensor computing requires detectors with polarity reconfigurability and linear responsivity. Pang et al. report a CsPbBr3 perovskite single crystal X-ray detector for edge extraction imaging with a data compression ratio of 46.4% and classification task with an accuracy of 100%.

    • Jincong Pang
    • Haodi Wu
    • Guangda Niu
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-9

  • Ionic migration degrades not only the characteristics of halide perovskite solar cells, but also those of perovskite X-ray detectors. Here Yang et al. employ heteroepitaxial BiOBr to passivate Cs2AgBiBr6 double perovskite, which suppresses ionic migration and obtain high performance X-ray detectors.

    • Bo Yang
    • Weicheng Pan
    • Jiang Tang
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-10

  • Double perovskite Cs2AgBiBr6 single crystals are used to make a sensitive X-ray detector. The device exhibits a high sensitivity of 105 µC Gyair −1 cm−2 and a low detection limit of 59.7 nGyairs−1, and demonstrates long-term operational stability.

    • Weicheng Pan
    • Haodi Wu
    • Jiang Tang
    Research
    Nature Photonics
    Volume: 11, P: 726-732

  • Researchers overcome the typical scintillator trade-off between high efficiency and speed. In organic scintillators, researchers drove hot excitons into fast singlet emission states without involving the lowest triplet states, which led to a fast radiative lifetime and strong light yield that may be applicable to ultrafast detection and imaging.

    • Xinyuan Du
    • Shan Zhao
    • Jiang Tang
    Research
    Nature Photonics
    Volume: 18, P: 162-169

  • Efficient light extraction in perovskite X/γ-ray scintillators is hindered by the small Stokes shift of exciton luminescence. Here, Jin et al. exploit the intrinsic strain in 2D perovskite as “self-wavelength shifting” to reduce the self-absorption effect without sacrificing the device response speed.

    • Tong Jin
    • Zheng Liu
    • Guangda Niu
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-9

  • The vertical matrix perovskite X-ray detectors for multi-energy detection is reported, providing a new generation of X-ray detectors with features of multi-energy discrimination, density differentiation and contrast-enhanced.

    • Jincong Pang
    • Shan Zhao
    • Jiang Tang
    ResearchOpen Access
    Light: Science & Applications
    Volume: 11, P: 1-10