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Excitons in undoped AlGaAs/GaAs wide parabolic quantum wells
(2010-04-12)
In this work the electronic structure of undoped AlGaAs/GaAs wide parabolic quantum wells (PQWs) with different well widths (1000 and 3000 ) were investigated by means of photoluminescence (PL) measurements. Due to the ...
Excitons in undoped AlGaAs/GaAs wide parabolic quantum wells
(2010-04-12)
In this work the electronic structure of undoped AlGaAs/GaAs wide parabolic quantum wells (PQWs) with different well widths (1000 and 3000 ) were investigated by means of photoluminescence (PL) measurements. Due to the ...
Spectral redistribution of waveguided emission in BEH-PPV films
(Taylor & Francis Ltd, 2002-01-01)
We report on spectral redistribution of the photoluminescence (PL) emission from the edge of thin-film planar waveguides of the conjugated polymer BEH-PPV [Poly(2,5-bis(2'-ethyl-hexyl)-1,4-phenylenevinylene] induced by ...
Spectral redistribution of waveguided emission in BEH-PPV films
(Taylor & Francis Ltd, 2002-01-01)
We report on spectral redistribution of the photoluminescence (PL) emission from the edge of thin-film planar waveguides of the conjugated polymer BEH-PPV [Poly(2,5-bis(2'-ethyl-hexyl)-1,4-phenylenevinylene] induced by ...
Effect of pressure-assisted heat treatment on photoluminescence emission of α-Bi2O3 needles
(Inorganic Chemistry, 2015-11-02)
Materials with high photoluminescence (PL) intensity can potentially be used in optical and electronic devices. Although the PL properties of bismuth(III) oxide with a monoclinic crystal structure (α-Bi2O3) have been ...
White emission in polymer light-emitting diodes: color composition by single-layer electroluminescence and external photoluminescence component
(Elsevier BVAmsterdam, 2014-09)
White emitting devices were obtained through a single component system by combining two materials with different emission properties: a greenish electroluminescent polymer, known as poly[(9,9-dioctylfluorenyl-2,7-diyl)-a ...
Photoluminescence emission in zirconium-doped calcium copper titanate powders
(2016-03-01)
Intense photoluminescence (PL) emission was observed in Zr-doped calcium copper titanate powders. The compounds were synthesized by a soft chemical method and heat treated at temperatures between 300 and 850 °C. The ...
Enhancement of spectroscopic and luminescence properties of Er3+ doped tellurite glasses by adding P2O5 for lasing materials
(2018-02-01)
Er3+-doped phosphor-tellurite glasses has been synthesized by conventional melting method. Results of differential scanning calorimetry (DSC) measurements indicate a good thermal stability of tellurite glasses. The DSC ...
Connecting morphology and photoluminescence emissions in β-Ag2MoO4 microcrystals
(2022-02-01)
This work elucidates the morphology-photoluminescence (PL) emission relationships, based on experimental and calculated results, on β-Ag2MoO4 samples synthesized by microwave-assisted hydrothermal method. It was shown that ...