Topology and geometry under the nonlinear electromagnetic spotlight
For many materials, a precise knowledge of their dispersion spectra is insufficient to predict
their ordered phases and physical responses. Instead, these materials are classified by the …
their ordered phases and physical responses. Instead, these materials are classified by the …
The interaction of 2D materials with circularly polarized light
Abstract 2D materials (2DMs), due to spin‐valley locking degree of freedom, exhibit strongly
bound exciton and chiral optical selection rules and become promising material candidates …
bound exciton and chiral optical selection rules and become promising material candidates …
High-Responsivity, High-Detectivity, Ultrafast Topological Insulator Bi2Se3/Silicon Heterostructure Broadband Photodetectors
H Zhang, X Zhang, C Liu, ST Lee, J Jie - ACS nano, 2016 - ACS Publications
As an exotic state of quantum matter, topological insulators have promising applications in
new-generation electronic and optoelectronic devices. The realization of these applications …
new-generation electronic and optoelectronic devices. The realization of these applications …
Ultrafast photocurrents at the surface of the three-dimensional topological insulator Bi2Se3
L Braun, G Mussler, A Hruban, M Konczykowski… - Nature …, 2016 - nature.com
Three-dimensional topological insulators are fascinating materials with insulating bulk yet
metallic surfaces that host highly mobile charge carriers with locked spin and momentum …
metallic surfaces that host highly mobile charge carriers with locked spin and momentum …
Recent advances in functional bismuth chalcogenide nanomaterials: Cancer theranostics, antibacterial and biosensing
Q Wang, J Du, R Ouyang, B Liu, Y Miao, Y Li - Coordination Chemistry …, 2023 - Elsevier
In recent years, the research of bismuth chalcogenide (Bi 2 X 3, X= O, S, Se, and Te)
nanomaterials has expanded from the fields of optics, chemical, and electronic engineering …
nanomaterials has expanded from the fields of optics, chemical, and electronic engineering …
Enhanced photogalvanic current in topological insulators via Fermi energy tuning
We achieve the enhancement of the circular photogalvanic effect arising from the
photoinjection of spins in topological insulator thin films by tuning the Fermi level (EF). A …
photoinjection of spins in topological insulator thin films by tuning the Fermi level (EF). A …
Epitaxial Growth of Topological Insulators on Semiconductors (Bi2Se3/Te@Se) toward High‐Performance Photodetectors
Heterojunctions, composed of different materials, are widely explored in optoelectronic
devices thanks to their unique advantages, such as high carrier mobility and excellent …
devices thanks to their unique advantages, such as high carrier mobility and excellent …
Helicity dependent photocurrent in electrically gated (Bi1−xSbx)2Te3 thin films
Circularly polarized photons are known to generate a directional helicity-dependent
photocurrent in three-dimensional topological insulators at room temperature. Surprisingly …
photocurrent in three-dimensional topological insulators at room temperature. Surprisingly …
Interplay of Surface and Dirac Plasmons in Topological Insulators: The Case of
We have investigated plasmonic excitations at the surface of Bi 2 Se 3 (0001) via high-
resolution electron energy loss spectroscopy. For low parallel momentum transfer q∥, the …
resolution electron energy loss spectroscopy. For low parallel momentum transfer q∥, the …