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Showing 1–4 of 4 results
Advanced filters: Author: Alex J. Grede Clear advanced filters

  • Concentrator photovoltaics achieve high efficiency but have so far been impractical for use on rooftops. Here, Price et al. develop a flat-panel concentrating photovoltaic system based on a triple-junction solar cell that operates at fixed tilt over a full day with >30% peak efficiency.

    • Jared S. Price
    • Alex J. Grede
    • Noel C. Giebink
    Research
    Nature Energy
    Volume: 2, P: 1-7

  • Integrating an organic photodiode with a tandem OLED enables positive photonic feedback that results in bistable behaviour. Devices show giant hysteresis in their current–voltage–luminance characteristic and upconversion of near-infrared to visible light with 100-fold photon-to-photon gain.

    • Raju Lampande
    • Jon-Paul S. DesOrmeaux
    • Noel C. Giebink
    Research
    Nature Photonics
    Volume: 18, P: 1299-1304

  • Hybrid perovskite semiconductors are promising for wavelength-tunable laser diodes but their behavior under intense electrical excitation remains unexplored. Kim et al. investigate perovskite light emitting diodes at current densities nearing 1 kA cm−2 and suggest that a laser diode is within reach.

    • Hoyeon Kim
    • Lianfeng Zhao
    • Noel C. Giebink
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-9