Results 111 to 120 of about 124,796 (262)
POLARIZATION OF HOT PHOTOLUMINESCENCE IN QUANTUM-WELLS AND HEAVY-LIGHT HOLE MIXING
, 1991 Hot electrons excited from the valence band by linearly polarized laser light are characterized by certain angular distributions in momenta. Owing to such angular distributions in momenta, the photoluminescence from the hot electrons shows a certain ...
ZHU BF +2 more
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Photoluminescence spectroscopy of nanomaterials
, 2023 Photoluminescence (PL) is being used as non-destructive measurement of optical properties of solids. Amongst measured properties is particularly structure of energetical levels of materials, but we can also deduce structure of material or its additives ...
Dzian, Jan
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Advanced Materials, EarlyView.Ionic cocrystal‐programmed ionic organization establishes a general strategy for electrostatic programming in polymeric photocatalysts. ABSTRACT Controlling the spatial organization of ions in polymeric photocatalysts remains a fundamental challenge for optimizing charge transport and catalytic selectivity in solar‐driven hydrogen peroxide (H2O2 ...
Anna Lo Presti +6 more
wiley +1 more source
Photoluminescence behaviors from stoichiometric gadolinium oxide films
, 2003 Stoichiometric gadolinium oxide thin films have been grown on silicon (100) substrates with a low-energy dual ion-beam epitaxial technique. Gadolinium oxide shares Gd2O3 structures although the ratio of gadolinium and oxygen in the film is about 2:1 and ...
Chen NF +7 more
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Efficient in‐Plane Exciton Transport in a Discontinuous Layered Lead‐Bromide Perovskite
Advanced Materials, EarlyView.A new class of two‐dimensional lead‐bromide perovskite based on monovalent 4‐aminomethylbenzoic acid cations is presented, featuring a discontinuous inorganic layer. Despite the discontinuous lattice, transient photoluminescence microscopy demonstrates efficient though strongly anisotropic in‐plane exciton transport.
Raquel Utrera‐Melero +9 more
wiley +1 more source
Next MaterialsTellurite glasses with the composition (in mol%) (100-x)(75TeO2:25Li2O):xAgNO3 (x = 0, 0.6, and 1.2) were synthesized at 800 °C in an ambient atmosphere, for investigation of the influence of Ag nanoparticles on the Te4+ semi metal ion photoluminescence (
Adriana do Carmo Capiotto +4 more
doaj +1 more source
PROCESS OF PHOTOLUMINESCENCE AND PHOTOSTIMULATED LUMINESCENCE IN BAFBR-EU PHOSPHORS
, 1995 The photoluminescence (PL) and photostimulated luminescence (PSL) of BaFBr: Eu phosphors are reported. In the photoluminescence of BaFBr:Eu, the emission of Eu2+, e-h recombination and Eu3+ have been observed, while in the photostimulated luminescence ...
SU MZ +2 more
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Helicity‐Defined Analog Conductance States in Chiral Perovskite Synapses
Advanced Materials, EarlyView.Chiral perovskite synapses convert the handedness of circularly polarized light into persistent analog memory during electrical programming. An optimized n = 3 structure combines strong helicity selectivity with low read noise, enabling 72 distinct conductance levels.
Min Jong Lee +16 more
wiley +1 more source
Problems Related to Photoluminescence of Si Nanocrystals
It is a widely accepted opinion that the intense photoluminescence (PL) of Si nanocrystals (Si-flc) is caused by radiative recombination. Our analyses of available theoretical and experimental data show that Si-nc has an indirect band structure and ...
Purītis, Tālivaldis +1 more
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Photoluminescence of ZnO : Tb nanoparticles
, 2000 Terbium-doped zinc oxide nanoparticles have been prepared by hydrolyzing zinc acetate and terbium acetate. Nanoparticle-matrix-facilitated photoluminescence which is related to Tb3+ ions has been observed for ZnO:Tb nanoparticles.
Guo HQ +5 more
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