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11 papers · 1 filter
Tuning band alignment at a semiconductor-crystalline oxide heterojunction via electrostatic modulation of the interfacial dipole
M. Chrysler, J. Gabel, T. -L. Lee +14
We demonstrate that the interfacial dipole associated with bonding across the SrTiO3/Si heterojunction can be tuned through space charge, thereby enabling the band alignment to be…
Bandgap in orthorhombic thin lead halide perovskite (CsPbBr3) nanosheets measured from STEM-EELS
Rosaria Brescia, Stefano Toso, Quentin Ramasse +4
Inorganic lead halide perovskites are promising candidates for optoelectronic applications, due to their bandgap tunability, high photoluminescence quantum yield, and narrow emissi…
Enhanced spin-orbit coupling in a heavy metal via molecular coupling
Satam Alotibi, B. J. Hickey, Gilberto Teobaldi +11
Heavy metals are key to spintronics because of their high spin-orbit coupling (SOC) leading to efficient spin conversion and strong magnetic interactions. When C60 is deposited on…
Imaging localized plasmon resonances in vacancy doped Cu3-xP semiconductor nanocrystals with STEM-EELS
Giovanni Bertoni, Rosaria Brescia, Luca De Trizio +2
Copper binary compounds are often intrinsic p-type semiconductors due to the presence of Cu(I) vacancies, with corresponding hole carriers in the valence band. If the free carrier…
Theory of momentum-resolved phonon spectroscopy in the electron microscope
R. J. Nicholls, F. S. Hage, D. G. McCulloch +3
We provide a theoretical framework for the prediction and interpretation of momentum dependent phonon spectra due to coherent inelastic scattering of electrons. We complete the app…
Probing the local nature of excitons and plasmons in few-layer MoS2
Hannah Catherine Nerl, Kirsten Trøstrup Winther, Fredrik Sydow Hage +6
Excitons and plasmons are the two most fundamental types of collective electronic excitations occurring in solids. Traditionally, they have been studied separately using bulk techn…