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Showing 1–10 of 10 results
Advanced filters: Author: Ivan G. Scheblykin Clear advanced filters

  • The fate of newly created excited states in conjugated materials is not fully understood, with unanswered questions regarding where exactly excitons form and their subsequent behaviour. Now, single-molecule spectroscopy studies of large conjugated molecular wheels reveal that excitons localize at random positions around the wheel rims.

    • Ivan G. Scheblykin
    News & Views
    Nature Chemistry
    Volume: 5, P: 903-904

  • By applying single-molecule imaging technique in free solution, we visually observed polymer chains break apart when they collide with each other just because of their Brownian motion. The oxidation scission reaction is catalyzed by the leverage effect, analogous to breaking a stiff wooden stick over the knee. Our surprising results suggest that new catalysts could be designed with the idea of stiff molecules working as ‘knives’ and ‘leverages’ breaking chemical bonds. We believe that our work opens up the possibility of monitoring chemical processes in solution at the single-molecule level.

    • Yuxi Tian
    • Marina V Kuzimenkova
    • Ivan G Scheblykin
    ResearchOpen Access
    NPG Asia Materials
    Volume: 6, P: e134

  • Charge dynamics in perovskite is not well-understood, limited by the knowledge of defect physics and charge recombination mechanism, yet the ABC and SRH models are widely used. Here, the authors introduce advanced PLQY mapping as function of excitation pulse energy and repetition frequency to examine the validity of these models.

    • Alexander Kiligaridis
    • Pavel A. Frantsuzov
    • Ivan G. Scheblykin
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-13

  • The mechanism of the non-radiative recombination in halide perovskite nanocrystals has not been fully understood. Here Gerhard et al. resolve the contributions of individual recombination centers by photoluminescence blinking measurements and identify ion migration as the underlying mechanism.

    • Marina Gerhard
    • Boris Louis
    • Ivan G. Scheblykin
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-12

  • 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

  • Optical binding enables light-induced assembly of many particles within a focus area. Here, the authors demonstrate that optical binding can occur outside the irradiated area by scattered light interacting with the particles outside the focus, generating arc-shape potential wells for particle trapping.

    • Chih-Hao Huang
    • Boris Louis
    • Hiroshi Masuhara
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-10

  • Multidentate molecular additives are widely used to passivate perovskite, yet the role of chelate effect is still unclear. Here, the authors investigate a wide range of additives with different coordination number and functional moieties to establish correlation between coordination affinity and perovskite crystallisation dynamics.

    • Yatao Zou
    • Pengpeng Teng
    • Feng Gao
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-10

  • Metal-halide perovskites are promising photovoltaic materials, but fundamental questions remain open due to their structural complexity. Here the authors show, by correlated microscopy and spectroscopy methods, that epitaxially induced lattice distortions drive a size dependent modulation of the bandgap in a homogeneous nanowire system.

    • Eitan Oksenberg
    • Aboma Merdasa
    • Ernesto Joselevich
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-11

  • Camacho et al. show detection of non-aggregated and aggregated α-synuclein in brain tissue from a mouse model of Parkinson’s disease using 2-dimensional polarization imaging. This fluorescence imaging method will allow for early detection of pathogenic α-synuclein aggregates associated with neurodegenerative illnesses.

    • Rafael Camacho
    • Daniela Täuber
    • Ivan G. Scheblykin
    ResearchOpen Access
    Communications Biology
    Volume: 1, P: 1-10