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Showing 1–17 of 17 results
Advanced filters: Author: Songhua Cai Clear advanced filters

  • Wang et al. identify the intragrain impurity nanoclusters of a metastable (FA,Cs)PbI₄ phase, arising from intragrain cation segregation, to be the performance-limiting defect structure in FA–Cs mixed-cation perovskites. An inner salt is introduced to mitigate these intragrain defects, enabling n-i-p perovskite solar cells with efficiency of 26.03%.

    • Weizhen Wang
    • Mingwei Hao
    • Yuanyuan Zhou
    ResearchOpen Access
    Nature Communications
    Volume: 17, P: 1-11

  • A band-hybridized selenium contact is developed for nanoscale p-type field-effect transistors (WSe2, black phosphorus and carbon nanotubes), achieving a low contact resistance through a scalable fabrication process.

    • Cong Wang
    • Jianmiao Guo
    • Yang Chai
    Research
    Nature Nanotechnology
    P: 1-9

  • A single adaptive neuromorphic vision device is reported to emulate four high-order visual neuronal dynamics, enabling a highly efficient and compact artificial general vision intelligence system towards dynamic scenarios.

    • Jiayi Xu
    • Biyi Jiang
    • Feichi Zhou
    ResearchOpen Access
    Nature Nanotechnology
    Volume: 20, P: 1419-1430

  • The detrimental effects of intragrain impurity nanoclusters on the efficiency and stability of perovskite solar cells remain unexplored. Here, the authors study the intragrain impurity annihilation by in situ scanning transmission electron microscopy and adopt a laser stimulus to heal such impurity.

    • Songhua Cai
    • Zhipeng Li
    • Yuanyuan Zhou
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-10

  • A method mediated by [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) is developed to synthesize a uniform, purer-phase 2D perovskite capping layer on 3D perovskite films. The PCBM interlayer mediates the reaction of the 2D passivator with the 3D perovskite and prevents grain-boundary etching, enhancing solar cell efficiency and stability.

    • Zhimin Li
    • Pengfei Guo
    • Yuanyuan Zhou
    Research
    Nature Synthesis
    Volume: 4, P: 1078-1087

  • Integrating heterogeneous single atom nanozyme (SAzyme) configurations and homogeneous enzyme-like mechanism is promising for optimizing SAzymes but elusive. Here the authors address this issue by developing a spatial engineering strategy to fabricate dual-sites SAzymes incorporating single atom Fe active centers (Fe–N4) and Cu atomic sites (Cu–N4) in a vertically stacked Fe–N4 and Cu–N4 geometry.

    • Ying Wang
    • Vinod K. Paidi
    • Kwok-Yin Wong
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-13

  • Memristors that offer good thermal stability, which is lacking in traditional memristors, can be created from a van der Waals heterostructure composed of graphene/MoS2–xO x /graphene.

    • Miao Wang
    • Songhua Cai
    • Feng Miao
    Research
    Nature Electronics
    Volume: 1, P: 130-136

  • Many of the most sensitive X-ray detectors are based on toxic elements such as lead, limiting their safe applications. Here, the authors report the realization of sensitive X-ray detectors based on solution-grown thick BiI/BiI3/BiI van der Waals heterostructures, showing a detection limit down to 34 nGy s−1 and high stability.

    • Renzhong Zhuang
    • Songhua Cai
    • Shenghuang Lin
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-10

  • Photocatalytic overall water splitting on particulate systems represents a possibility for clean energy storage, yet efficiencies for the process are typically low. Here, highly concentrated saltwater is used to polarize photoexcited N-doped TiO2, resulting in enhanced charge separation and a solar-to-hydrogen efficiency approaching 20%.

    • Yiyang Li
    • Hui Zhou
    • Shik Chi Edman Tsang
    ResearchOpen Access
    Nature Catalysis
    Volume: 7, P: 77-88

  • Two types of skyrmion-like polar nanodomain are observed in oxide bilayers transferred onto silicon, and these nanodomains, with distinct resistive behaviour, can be converted to each other under an external electric field.

    • Lu Han
    • Christopher Addiego
    • Xiaoqing Pan
    Research
    Nature
    Volume: 603, P: 63-67

  • Ultrathin freestanding crystalline films of transition-metal oxide perovskites are fabricated and transferred to various substrates, proving their potential for exploring emergent 2D correlated phases.

    • Dianxiang Ji
    • Songhua Cai
    • Xiaoqing Pan
    Research
    Nature
    Volume: 570, P: 87-90

  • Tianzhen Zhang, Xiongming Du and colleagues report whole-genome resequencing of 318 upland cotton (Gossypium hirsutum) accessions. They carried out genome-wide association analyses to identify loci associated with fiber quality, lint yield and resistance to Verticillium wilt, and identify two ethylene-pathway genes associated with the increased lint yield observed in improved cultivars.

    • Lei Fang
    • Qiong Wang
    • Tianzhen Zhang
    Research
    Nature Genetics
    Volume: 49, P: 1089-1098