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Showing 1–11 of 11 results
Advanced filters: Author: Guanhaojie Zheng Clear advanced filters

  • Crystal facet orientations of the polycrystalline hybrid lead halide perovskite thin films play a crucial role in determining the device performance. Here Zheng et al. demonstrate effective control of the crystal stacking mode by cation cascade doping, which promotes the charge transport in the photovoltaic device.

    • Guanhaojie Zheng
    • Cheng Zhu
    • Huanping Zhou
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-11

  • Employing a lattice-matched perovskite oxide as an electron transport layer allows optimizing the buried interface in perovskite solar cells. A maximum power conversion efficiency of 25.17% is achieved. Cells with an initial power conversion efficiency of 24.4% maintain 90% efficiency after operation for 1,000 h.

    • Chao Luo
    • Guanhaojie Zheng
    • Qing Zhao
    Research
    Nature Photonics
    Volume: 17, P: 856-864

  • It is generally more difficult to modify the buried interfaces compared to top interfaces in tin-lead perovskite subcells. Here, the authors employ a mercapto-functionalized mesoporous silica layer as a superstructure, realizing maximum efficiency of 29.6% for double-junction tandem solar cells.

    • Jianan Wang
    • Shuaifeng Hu
    • Wei Chen
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-11

  • To increase the efficiency, brightness and stability of next-generation light-emitting diodes (LEDs), the microstructure of CsPbI3-xBrx metal-halide perovskite, a good pure-red emitter, was altered to fix hole leakage, which was identified as decreasing efficiencies in overworked LEDs.

    • Yong-Hui Song
    • Bo Li
    • Hong-Bin Yao
    Research
    Nature
    Volume: 641, P: 352-357

  • The use of a hydrogen-bonded eutectic molecule as a ligand stabilizes black phase perovskite, resulting in solar cells with a T95 lifetime of 2,000 h and an efficiency of 25.8%.

    • Zhi-Wen Gao
    • Deng Wang
    • Wallace C. H. Choy
    Research
    Nature Photonics
    Volume: 19, P: 258-263

  • Multidentate molecular additives are widely used to passivate perovskite, yet the role of chelate effect is still unclear. Here, the authors investigate a wide range of additives with different coordination number and functional moieties to establish correlation between coordination affinity and perovskite crystallisation dynamics.

    • Yatao Zou
    • Pengpeng Teng
    • Feng Gao
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-10

  • Achieving bright and efficient blue emission in metal halide perovskite light-emitting diodes has proven to be challenging. Here, the authors demonstrate high EQE and spectrally stable blue light-emitting diodes based on mixed halide perovskites, with emission from 490 to 451 nm by using a vapour-assisted crystallization technique.

    • Max Karlsson
    • Ziyue Yi
    • Feng Gao
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-10

  • Perovskite solar cells degrade quickly under natural day/night cycling, compared with continuous illumination, owing to periodic lattice strain during cycling; the lattice strain can be regulated by adding phenylselenenyl chloride.

    • Yunxiu Shen
    • Tiankai Zhang
    • Yongfang Li
    ResearchOpen Access
    Nature
    Volume: 635, P: 882-889

  • The field of perovskite light-emitting diodes witnesses rapid development in both device processing strategies and performances. Here Wang et al. develop high-quality perovskite-molecule composite thin films and achieve high quantum efficiency of 17.3% and half-lifetime of 100 h.

    • Heyong Wang
    • Felix Utama Kosasih
    • Feng Gao
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-9