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Showing 1–4 of 4 results
Advanced filters: Author: Arkady Yartsev Clear advanced filters

  • 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

  • Light-matter interaction can induce changes to the properties of the system by creating hybrid collective states of light and molecular excitations, the so called polaritons. Here the authors use femtosecond pump-probe spectroscopy to explore exciton-polariton dynamics in a photosynthetic protein, light harvesting 2 complexes, and find evidence for rapid energy transfer to dark polariton states.

    • Fan Wu
    • Daniel Finkelstein-Shapiro
    • Tönu Pullerits
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-7

  • Although coherent vibrational motion in donor-acceptor blends may contribute to photogeneration generation in organic solar cells (OSCs), proof of a direct correlation is still lacking. Here, the authors report the role of vibrational coherence on photocurrent generation in ternary OSC blends.

    • Qingzhen Bian
    • Fei Ma
    • Olle Inganäs
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-9

  • Understanding crystal phase transition in materials is of fundamental importance. Using luminescence spectroscopy and super-resolution imaging, Dobrovolsky et al. study the transition from the tetragonal to orthorhombic crystal phase in methylammonium lead triiodide nanowires at low temperature.

    • Alexander Dobrovolsky
    • Aboma Merdasa
    • Ivan G. Scheblykin
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-8