Kai Xiao Distinguished Staff Scientist Contact XIAOK@ORNL.GOV All Publications Two-dimensional Ga/Se/MoSe2 misfit bilayer heterojunctions by van der Waals epitaxy Separation of Distinct Photoexcitation Species in Femtosecond Transient Absorption Microscopy Deciphering Halogen Competition in Organometallic Halide Perovskite Growth Twisted MoSe2 Bilayers with Variable Local Stacking and Interlayer Coupling Revealed by Low-Frequency Raman Spectroscopy Imaging Electronic Trap States in Perovskite Thin Films with Combined Fluorescence and Femtosecond Transient Absorption Microscopy Simplification of femtosecond transient absorption microscopy data from CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> perovskite thin films into decay associated amplitude maps Ultrathin Nanosheets of CrSiTe3: A Semiconducting Two-Dimensional Ferromagnetic Material Two-dimensional GaSe/MoSe2 misfit bilayer heterojunctions by van der Waals epitaxy Twisted MoSe2 bilayers with variable stacking and interlayer coupling revealed by low-frequency Raman spectroscopy... Separation of Distinct Photoexcitation Species in Femtosecond Transient Absorption Microscopy Tailoring synthesis of high-vacancy MoSe<sub>2-x</sub> monolayer crystals Quantitative Phase Fraction Detection in Organic Photovoltaic Materials through EELS Imaging Controllable Growth of Perovskite Films by Room-Temperature-Air-Exposure for Efficient Planar Heterojunction Photovoltaic Cel... Nanophase Engineering of Organic Semiconductor-based Solar Cells Correlating High Power Conversion Efficiency of PTB7:PC71BM Inverted Organic Solar Cells to Nanoscale Structure Observation of two distinct negative trions in tungsten disulfide monolayers... Peculiarity of Two Thermodynamically-Stable Morphologies and Their Impact on the Efficiency of Small Molecule Bulk Heterojunc... Van der Waals Epitaxial Growth of Single-Crystal Two-Dimensional GaSe on Graphene ... Perovskite Solar Cells with Near 100% Internal Quantum Efficiency Based on Large Single Crystalline Grains and Vertical Bulk ... Elucidation of Perovskite Film Micro-Orientations Using Two-Photon Total Internal Reflectance Fluorescence Microscopy... Spatial Localization of Excitons and Charge Carriers in Hybrid Perovskite Thin Films... Patterned Arrays of Lateral Heterojunctions within Monolayer 2D Semiconductors... Bundled‐Stack Discotic Columnar Liquid Crystalline Phase with Inter‐Stack Electronic Coupling Low-frequency Raman 'fingerprints' of two-dimensional metal dichalcogenide layer stacking configurations... Ultrahigh Photo-responsivity and Detectivity in Multilayer InSe nanosheets Phototransistors with Broadband Response... Pagination First page « First Previous page ‹Ĺ … Page 5 Current page 6 Page 7 … Next page ›ĺ Last page Last » Key Links Curriculum Vitae Organizations Physical Sciences Directorate User Facilities Center for Nanophase Materials Sciences Nanomaterials Synthesis Section Functional Hybrid Nanomaterials Group
