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Showing 1–16 of 16 results
Advanced filters: Author: Udo Bach Clear advanced filters

  • The study reports the application of data-driven techniques to structural neuroimaging data of people with recent-onset psychosis or recent-onset depression and matched controls for the prediction of transdiagnostic clinical symptom severity and clinical outcomes.

    • Alexandra I. Korda
    • Christina Andreou
    • Stefan Borgwardt
    ResearchOpen Access
    Nature Mental Health
    Volume: 2, P: 76-87

  • Dye-sensitized solar cells combining electrolytes based on the ferrocene/ferrocenium redox couple with a metal-free organic donor–acceptor sensitizer are reported to achieve a record 7.5% energy conversion efficiency, revealing the great potential of ferrocene-based electrolytes for future dye-sensitized solar cell applications.

    • Torben Daeneke
    • Tae-Hyuk Kwon
    • Leone Spiccia
    Research
    Nature Chemistry
    Volume: 3, P: 211-215

  • The stability of halide perovskite solar cells, determined by film morphology, is paramount to their commercialization. Here, the authors introduce a high-temperature DMSO-free method that enables better control of the grain size, texturing, orientation and crystallinity to achieve improved device operational stability.

    • David P. McMeekin
    • Philippe Holzhey
    • Henry J. Snaith
    Research
    Nature Materials
    Volume: 22, P: 73-83

  • Depending on its intensity, light irradiation is shown to induce not only segregation but also remixing of halide ions in mixed-halide perovskites, enabling in situ and localized control of chemical composition and optical bandgap in these materials.

    • Wenxin Mao
    • Christopher R. Hall
    • Udo Bach
    Research
    Nature Materials
    Volume: 20, P: 55-61

  • Hybrid organic–inorganic lead halide perovskites have recently emerged as ground-breaking photovoltaic materials. A recent confocal fluorescence microscopy study now raises hopes that perovskite solar cells can reach efficiencies beyond the recent record of 20%.

    • Udo Bach
    News & Views
    Nature Chemistry
    Volume: 7, P: 616-617

  • Simplified device concepts may become important for the development of low cost photovoltaics. Lin et al. report solar cells based on interdigitated gold back-contacts and metal halide perovskites where charge extraction is assisted via a dipole field generated by self-assembled molecular monolayers.

    • Xiongfeng Lin
    • Askhat N. Jumabekov
    • Udo Bach
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-8

  • Conventional substrates used for surface-enhanced Raman spectroscopy (SERS) are slow in response and lack reproducibility. Here, Zheng et al.describe a plasmonic sensor that can trap a single molecule at hot spots for rapid single-molecule detection with repeated trap and release capability and good SERS reproducibility.

    • Yuanhui Zheng
    • Alexander H. Soeriyadi
    • J. Justin Gooding
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-8

  • Using low dose transmission electron microscopy, Rothmann, Li, Zhuet al. report direct evidence for twin domains in tetragonal CH3NH3PbI3perovskite. The relevant scale and transition temperature of these twin domains could have implications for perovskite solar cells.

    • Mathias Uller Rothmann
    • Wei Li
    • Yi-Bing Cheng
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-8

  • Indium tin oxide (ITO) is a well-known n-type degenerate semiconductor. Herein, mesoporous ITO is utilized as a photocathode material for p-type dye-sensitized solar cells in place of the commonly applied p-type semiconductors, such as nickel oxide. In conjunction with [Fe(acac)3]0/− as redox mediator and a new sensitizer, an impressive energy conversion efficiency of 1.96±0.12% was achieved. Photoelectron spectroscopy in air revealed that ITO exhibits a significant local density of states arising below −4.8 eV, which enables electron transfer to occur from ITO to the excited dye, giving rise to the sustained photocathodic current.

    • Ze Yu
    • Ishanie R Perera
    • Udo Bach
    ResearchOpen Access
    NPG Asia Materials
    Volume: 8, P: e305

  • Dye-sensitized solar cells are a promising technology for sustainable energy generation. Most dyes in these types of solar cell act as sensitizers for injecting electrons into n-type semiconductors. But the development of a sensitizer that can efficiently inject holes into p-type semiconductors makes possible the realization of tandem cells that could exploit the two approaches together.

    • A. Nattestad
    • A. J. Mozer
    • U. Bach
    Research
    Nature Materials
    Volume: 9, P: 31-35