Photoluminescence of BoundâExciton Complexes and Assignment to Shallow Defects in Methylammonium/Formamidinium Lead Iodide Mixed Crystals
Sign Up to like & getrecommendations! Published in 2021 at "Advanced Optical Materials"
DOI: 10.1002/adom.202001969
Abstract: The high defect tolerance of metal halide perovskites, in terms of their exceptional optoelectronic properties, is assumed to be due to the very fact that most native point defects are shallow, which does not contribute… read more here.
Keywords: exciton complexes; methylammonium formamidinium; exciton; shallow defects ... See more keywords
Flat-Band-Induced Many-Body Interactions and Exciton Complexes in a Layered Semiconductor.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c02965
Abstract: Interactions among a collection of particles generate many-body effects in solids that result in striking modifications of material properties. The heavy carrier mass that yields strong interactions and gate control of carrier density over a… read more here.
Keywords: flat band; many body; exciton complexes; band induced ... See more keywords
Identification of Exciton Complexes in Charge-Tunable Janus WSeS Monolayers
Sign Up to like & getrecommendations! Published in 2022 at "ACS Nano"
DOI: 10.1021/acsnano.2c10697
Abstract: Janus transition-metal dichalcogenide monolayers are artificial materials, where one plane of chalcogen atoms is replaced by chalcogen atoms of a different type. Theory predicts an in-built out-of-plane electric field, giving rise to long-lived, dipolar excitons,… read more here.
Keywords: exciton complexes; janus wses; wses monolayers; identification exciton ... See more keywords
Electroluminescence from multi-particle exciton complexes in transition metal dichalcogenide semiconductors
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-019-09781-y
Abstract: Light emission from higher-order correlated excitonic states has been recently reported in hBN-encapsulated monolayer WSe2 and WS2 upon optical excitation. These exciton complexes are found to be bound states of excitons residing in opposite valleys… read more here.
Keywords: transition metal; exciton complexes; exciton; electroluminescence ... See more keywords
Damping of Rabi oscillations in intensity-dependent photon echoes from exciton complexes in a CdTe/(Cd,Mg)Te single quantum well
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.075306
Abstract: We study Rabi oscillations detected in the coherent optical response from various exciton complexes in a 20~nm-thick CdTe/(Cd,Mg)Te quantum well using time-resolved photon echoes. In order to evaluate the role of exciton localization and inhomogeneous… read more here.
Keywords: photon; exciton complexes; rabi oscillations; photon echoes ... See more keywords