Results 21 to 30 of about 217,541 (289)

Ligand Assisted Control of Photoluminescence in Organometal Perovskite Nanocrystals

open access: yesEurasian Chemico-Technological Journal, 2021
Organometal perovskite nanocrystals have shown remarkable properties not only in photovoltaics, but also in light-emitting devices. In this work colloidal nanocrystals of organometal perovskite CH3NH3PbBr3 (MAPBr) with effective visible photoluminescence
K.S. Sekerbayev   +3 more
doaj   +1 more source

Photoluminescence upconversion at GaAs/InGaP2 interfaces driven by a sequential two-photon absorption mechanism [PDF]

open access: yes, 2016
This paper reports on the results of an investigation into the nature of photoluminescence upconversion at GaAs/InGaP2 interfaces. Using a dual-beam excitation experiment, we demonstrate that the upconversion in our sample proceeds via a sequential two-
Ekins-Daukes, NJ   +8 more
core   +2 more sources

Optical properties of LiNbO3:B crystals

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022
The optical properties of nominally pure LiNbO3stoich, near-stoichiometric LiNbO3stoich (6,0 wt% K2O), LiNbO3cong and LiNbO3:B (0,55 and 0,83 mol% B2O3 in the charge) crystals in the visible region of the spectrum (λ = 380-700 nm) were studied by ...
N.V. Sidorov   +4 more
doaj   +1 more source

Deep ultraviolet hyperspectral cryomicroscopy in boron nitride: Photoluminescence in crystals with an ultra-low defect density

open access: yesAIP Advances, 2020
We report the development of a scanning confocal microscope dedicated to photoluminescence in the 200 nm-wavelength range for samples at cryogenic temperatures (5 K–300 K).
Pierre Valvin   +6 more
doaj   +1 more source

Optical spectroscopy of single beryllium acceptors in GaAs/AlGaAs quantum well [PDF]

open access: yes, 2016
We carry out microphotoluminescence measurements of an acceptor-bound exciton (A^0X) recombination in the applied magnetic field with a single impurity resolution.
Averkiev, N. S.   +7 more
core   +2 more sources

Infrared organic light emitting diodes using neodymium tris-(8-hydroxyquinoline) [PDF]

open access: yes, 2000
Copyright 2000 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Curry, RJ   +3 more
core   +1 more source

Making Graphene Nanoribbons Photoluminescent [PDF]

open access: yesNano Letters, 2017
We demonstrate the alignment-preserving transfer of parallel graphene nanoribbons (GNRs) onto insulating substrates. The photophysics of such samples is characterized by polarized Raman and photoluminescence (PL) spectroscopies. The Raman scattered light and the PL are polarized along the GNR axis.
B. V. Senkovskiy   +15 more
openaire   +5 more sources

METHOD OF NON-CONTACT PHOTOLUMINESCENT DIAGNOSTICS OF THE EYE FIBROUS TUNIC CONDITION

open access: yesBiomedical Photonics, 2018
Non-contact optical diagnostics of structural disorders of the eye has a number of advantages: high speed, accuracy and a large range of parameters available for analysis.
S. Yu. Petrov   +7 more
doaj   +1 more source

Giant Light-Emission Enhancement in Lead Halide Perovskites by Surface Oxygen Passivation. [PDF]

open access: yes, 2018
Surface condition plays an important role in the optical performance of semiconductor materials. As new types of semiconductors, the emerging metal-halide perovskites are promising for next-generation optoelectronic devices.
Huang, Jianmei   +11 more
core   +3 more sources

photoluminescence [PDF]

open access: yes, 2014
Citation: 'photoluminescence' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.P04623 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +2 more sources

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