David Geohegan Facility User, Center for Nanophase Materials Sciences Contact GEOHEGANDB@ORNL.GOV All Publications Observation of Nanoscale Morphological and Structural Degradation in Perovskite Solar Cells by In-Situ TEM Ultrafast Dynamics of Metal Plasmons Induced by 2D Semiconductor Excitons in Hybrid Nanostructure Arrays Ultrafast Charge Transfer and Hybrid Exciton Formation in 2D/0D Heterostructures... Isoelectronic tungsten doping in monolayer MoSe2 for carrier type modulation ... Low Temperature Synthesis of Hierarchical TiO2 Nanostructures for High Performance Perovskite Solar Cells In-plane Optical Anisotropy of Layered Gallium Telluride... Tailoring Vacancies Far Beyond Intrinsic Levels Changes the Carrier Type in Monolayer MoSe2-x CrystalsVacancy induced anomali... Interlayer Interactions in Twisted WSe2/WS2 Bilayer Heterojunctions: Synthesis, Characterization, and Modeling... Nanoscale Silicon as a Catalyst for Graphene Growth: Mechanistic Insight from in Situ Raman Spectroscopy... Low Thermal Budget, Photonic-Cured Compact TiO2 Layer for High-Efficiency Perovskite Solar Cells... Two-dimensional GaSe/MoSe2 Misfit Bilayer Heterojunctions by van der Waals Epitaxy Persistent photoconductivity in two-dimensional Mo1-xWxSe2−MoSe2 van der Waals heterojunctions Deciphering Halogen Competition in Organometallic Halide Perovskite Growth... Improving Light Harvesting in Dye-Sensitized Solar Cells Using Hybrid Bimetallic Nanostructures Anisotropic Electron-Photon and Electron-Phonon Interactions in Black Phosphorus Twisted MoSe2 Bilayers with Variable Local Stacking and Interlayer Coupling Revealed by Low-Frequency Raman Spectroscopy Two-dimensional Ga/Se/MoSe2 misfit bilayer heterojunctions by van der Waals epitaxy Twisted MoSe2 bilayers with variable stacking and interlayer coupling revealed by low-frequency Raman spectroscopy... Improving Light Harvesting in Dye Sensitized Solar Cells using Hybrid Bimetallic Nanostructures Deciphering Halogen Competition in Organometallic Halide Perovskite Growth Tailoring synthesis of high-vacancy MoSe<sub>2-x</sub> monolayer crystals Two-dimensional GaSe/MoSe2 misfit bilayer heterojunctions by van der Waals epitaxy Ultrathin Nanosheets of CrSiTe3: A Semiconducting Two-Dimensional Ferromagnetic Material Low-Frequency Interlayer Raman Modes to Probe Interface of Twisted Bilayer MoS2 Carbon Nanotubes Grown on Metal Microelectrodes for the Detection of Dopamine... Pagination First page « First Previous page ‹â¶Ä¹ … Page 3 Current page 4 Page 5 … Next page ›â¶Äº Last page Last » Key Links Curriculum Vitae Organizations Physical Sciences Directorate User Facilities Center for Nanophase Materials Sciences
