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Showing 1–12 of 12 results
Advanced filters: Author: Constantinos C. Stoumpos Clear advanced filters

  • Perovskite solar cells containing tin rather than lead, which is usually employed, are reported. These cells have a power conversion efficiency of 5.7% and retain 80% of their performance over a period of 12 hours.

    • Feng Hao
    • Constantinos C. Stoumpos
    • Mercouri G. Kanatzidis
    Research
    Nature Photonics
    Volume: 8, P: 489-494

  • Hydriodic acid or hydrogen lead iodide is widely used to stabilize all-inorganic perovskite cesium lead iodide to make high performing solar cells. Here Ke et al. reveal the real composition of the perovskites, where dimethylammonium partially take place of cesium cation at the A-site.

    • Weijun Ke
    • Ioannis Spanopoulos
    • Mercouri G. Kanatzidis
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-9

  • Carrier mobility is a basic semiconductor property. Manteet al., use femtosecond lasers to investigate coherent acoustic phonons and relate their deformation potentials to estimate the intrinsic electron and hole mobilities of CH3NH3PbI3 single crystals to be 2,800 and 9,400 cm2 V−1 s−1, respectively.

    • Pierre-Adrien Mante
    • Constantinos C. Stoumpos
    • Arkady Yartsev
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-7

  • It has been challenging to probe whether dynamically disordered organic cations affect optical properties of CH3NH3PbI3. Here, Guo et al. employ infrared-pump electronic-probe spectroscopy and show that pump-induced atomic motions of the organic cations do not substantially alter optoelectronic properties.

    • Peijun Guo
    • Arun Mannodi-Kanakkithodi
    • Richard D. Schaller
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-8

  • Two-dimensional, organic-inorganic hybrid perovskites have sustained research interest due to attractive optoelectronic and excitonic properties. Here, Guo et al. systematically investigate coherent acoustic phonon transport versus layer thickness in these materials with strong acoustic impedance mismatch

    • Peijun Guo
    • Constantinos C. Stoumpos
    • Richard D. Schaller
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-9

  • Solution-processed two-dimensional perovskite quantum-well-based optoelectronic devices have attracted great research interest but their electrical transport is poorly understood. Tsai et al. reveal that the potential barriers of the quantum wells dominate the transport properties in solar cell devices.

    • Hsinhan Tsai
    • Reza Asadpour
    • Wanyi Nie
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-9

  • Detection and spectroscopic measurements of gamma-ray used to rely on expensive materials such as CdZnTe crystals. Here He et al. develop a melt method to grow large size CsPbBr3 perovskite crystals and the devices achieve low cost, high energy resolving capabilities and stability.

    • Yihui He
    • Liviu Matei
    • Mercouri G. Kanatzidis
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8

  • Hybrid organic-inorganic perovskites are emerging materials for efficient photovoltaics; however understanding how charge/heat dissipates inside the material remains a challenge. Here, the authors use a spectroscopic approach to observe unusually slow thermal equilibration between the organic and inorganic components.

    • Peijun Guo
    • Jue Gong
    • Richard D. Schaller
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-9

  • Unconventional topological states emerge in anisotropic perovskite microcavities via strong photonic Rashba-Dresselhaus coupling, enabling synthetic gauge fields and non-zero Berry curvature for advanced topological photonics and spinoptronics.

    • Emmanouil G. Mavrotsoupakis
    • Leonidas Mouchliadis
    • Pavlos G. Savvidis
    ResearchOpen Access
    Light: Science & Applications
    Volume: 14, P: 1-10

  • Thin-film solar cells were fabricated using layered two-dimensional perovskites with near-single-crystalline out-of-plane alignment, which facilitates efficient charge transport leading to greatly improved power conversion efficiency with technologically relevant stability to light exposure, humidity and heat stress.

    • Hsinhan Tsai
    • Wanyi Nie
    • Aditya D. Mohite
    Research
    Nature
    Volume: 536, P: 312-316