Direct Observation of Ultrafast Exciton Formation in a Monolayer of WSe2.
Sign Up to like & getrecommendations! Published in 2017 at "Nano letters"
DOI: 10.1021/acs.nanolett.6b04422
Abstract: Many of the fundamental optical and electronic properties of atomically thin transition metal dichalcogenides are dominated by strong Coulomb interactions between electrons and holes, forming tightly bound atom-like states called excitons. Here, we directly trace… read more here.
Keywords: formation; direct observation; observation ultrafast; ultrafast exciton ... See more keywords
Room Temperature Exciton Formation and Robust Optical Properties of CVD-Grown Ultrathin Bi2O2Se Crystals on Arbitrary Substrates
Sign Up to like & getrecommendations! Published in 2023 at "Nanoscale"
DOI: 10.1039/d3nr01201h
Abstract: The appealing success of non-van der Waals (Non-VdW) two-dimensional (2D) Bismuth oxiselenise (Bi2O2Se) crystals in optoelectronics provides an exciting avenue to investigate its fundamental physical properties. To date, the majority... read more here.
Keywords: bi2o2se crystals; formation robust; temperature exciton; bi2o2se ... See more keywords
Excitonic Condensate in Flat Valence and Conduction Bands of Opposite Chirality.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.186401
Abstract: Excitonic Bose-Einstein condensation (EBEC) has drawn increasing attention recently with the emergence of 2D materials. A general criterion for EBEC, as expected in an excitonic insulator (EI) state, is to have negative exciton formation energies… read more here.
Keywords: exciton; excitonic condensate; conduction; valence ... See more keywords