Coincidence measurements between photons, projectiles and recoil ions in low energy Kr18+ + Kr collisions. Auto-ionizing and radiative effect of multi-excited states

1992 ◽  
Vol 165 (5-6) ◽  
pp. 441-446 ◽  
Author(s):  
S. Martin ◽  
A. Denis ◽  
Y. Ouerdane ◽  
M. Carré
Keyword(s):  
Excited States ◽  
Low Energy ◽  
Radiative Effect ◽  
Coincidence Measurements ◽  
Recoil Ions

scholarly journals Influence of TOPO and TOPO-CdSe/ZnS Quantum Dots on Luminescence Photodynamics of InP/InAsP/InPHeterostructure Nanowires

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 640
Author(s):  
Artem I. Khrebtov ◽  
Vladimir V. Danilov ◽  
Anastasia S. Kulagina ◽  
Rodion R. Reznik ◽  
Ivan D. Skurlov ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Excited States ◽  
Molecular Beam ◽  
Surface Passivation ◽  
Low Energy ◽  
Trioctylphosphine Oxide ◽  
Reverse Transfer ◽  
Semiconductor Heterostructure ◽  
Ligand Type

The passivation influence by ligands coverage with trioctylphosphine oxide (TOPO) and TOPO including colloidal CdSe/ZnS quantum dots (QDs) on optical properties of the semiconductor heterostructure, namely an array of InP nanowires (NWs) with InAsP nanoinsertion grown by Au-assisted molecular beam epitaxy on Si (111) substrates, was investigated. A significant dependence of the photoluminescence (PL) dynamics of the InAsP insertions on the ligand type was shown, which was associated with the changes in the excitation translation channels in the heterostructure. This change was caused by a different interaction of the ligand shells with the surface of InP NWs, which led to the formation of different interfacial low-energy states at the NW-ligand boundary, such as surface-localized antibonding orbitals and hybridized states that were energetically close to the radiating state and participate in the transfer of excitation. It was shown that the quenching of excited states associated with the capture of excitation to interfacial low-energy traps was compensated by the increasing role of the “reverse transfer” mechanism. As a result, the effectiveness of TOPO-CdSe/ZnS QDs as a novel surface passivation coating was demonstrated.

Reactivity of low energy excited states

Tetrahedron ◽  
1981 ◽  
Vol 37 (19) ◽  
pp. 3237-3243 ◽  
Author(s):  
Howard E. Zimmerman ◽  
James R. Blinn
Keyword(s):  
Excited States ◽  
Low Energy

Photoinduced ligand dissociation follows reverse energy gap law: nitrile photodissociation from low energy 3MLCT excited states

2020 ◽  
Vol 56 (29) ◽  
pp. 4070-4073
Author(s):  
Lauren M. Loftus ◽  
Jeffrey J. Rack ◽  
Claudia Turro
Keyword(s):  
Excited State ◽  
Excited States ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Energy Gap ◽  
Low Energy ◽  
Transient Absorption Spectroscopy ◽  
Ligand Dissociation ◽  
Energy Gap Law

Transient absorption spectroscopy is used to show that stabilization of the 3MLCT excited state in a series of Ru(ii) complexes leads to decreased population of the 3LF state, but does not reduce the efficiency of photoinduced nitrile dissociation.

Solvent Effects on Nonradiative Relaxation Dynamics of Low-Energy Ligand-Field Excited States: A CuCl42– Complex

2017 ◽  
Vol 121 (17) ◽  
pp. 4562-4568 ◽  
Author(s):  
Andrey S. Mereshchenko ◽  
Olesya S. Myasnikova ◽  
Maxim S. Panov ◽  
Vladimir A. Kochemirovsky ◽  
Mikhail Yu. Skripkin ◽  
...  
Keyword(s):  
Excited States ◽  
Solvent Effects ◽  
Low Energy ◽  
Ligand Field ◽  
Relaxation Dynamics ◽  
Nonradiative Relaxation

High charge states of Xer+ recoil ions (r = 1 - 15) produced by multicapture processes in low energy Xe27+ collisions on Xe

1993 ◽  
Vol 126 (1-4) ◽  
pp. 337-340 ◽  
Author(s):  
A. Delon ◽  
S. Martin ◽  
A. Denis ◽  
Y. Ouerdane ◽  
M. Carre ◽  
...  
Keyword(s):  
Low Energy ◽  
High Charge ◽  
Charge States ◽  
Recoil Ions

STUDIES OF THE ENERGY SPECTRUM AND THE WAVE FUNCTION FOR LOW ENERGY EXCITED STATES IN LIQUID HELIUM II

2007 ◽  
Vol 21 (21) ◽  
pp. 1383-1390
Author(s):  
DE-HUA LIN ◽  
PING ZOU ◽  
ZHONG-WEI ZHANG ◽  
HONG-LEI WANG ◽  
JUN PAN ◽  
...  
Keyword(s):  
Experimental Data ◽  
Wave Function ◽  
Energy Spectrum ◽  
Liquid Helium ◽  
Excited States ◽  
Low Energy ◽  
Large Wave ◽  
Helium Ii ◽  
Wave Numbers ◽  
Specific Temperature

In this paper, we study the elementary excitations and energy spectrum proposed by L. D. Landau in liquid helium II. On the basis of the energy spectrum for the phonons and rotons, we put forward a uniform expression of energy spectrum in liquid helium II, which is limited in a specific temperature range. By using the wave function for low energy excited states proposed by R. P. Feynman or the modified one proposed by Feynman and Cohen, it can be found that the estimated energy spectrum is quite different from the experimental data, especially for the region with large wave numbers. By proposing an improved form for the wave function, we re-analyze the energy spectrum in liquid helium II, and our results show a better agreement with the experimental data.

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