Spin Dependent Charge Transfer in Low-Energy Collisions between Helium Ions and Cesium Atoms

Metrologia ◽  
1977 ◽  
Vol 13 (3) ◽  
pp. 109-113 ◽  
Author(s):  
H A Schuessler
Keyword(s):  
Charge Transfer ◽  
Low Energy ◽  
Helium Ions ◽  
Cesium Atoms

scholarly journals Colloidal CdSe nanocrystals are inherently defective

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tamar Goldzak ◽  
Alexandra R. McIsaac ◽  
Troy Van Voorhis
Keyword(s):  
Charge Transfer ◽  
Energy Spectrum ◽  
Surface Structure ◽  
Short Range ◽  
Surface Defects ◽  
Low Energy ◽  
Lewis Base ◽  
Cdse Nanocrystals ◽  
Photoinduced Charge Transfer ◽  
Photoinduced Charge

AbstractColloidal CdSe nanocrystals (NCs) have shown promise in applications ranging from LED displays to medical imaging. Their unique photophysics depend sensitively on the presence or absence of surface defects. Using simulations, we show that CdSe NCs are inherently defective; even for stoichiometric NCs with perfect ligand passivation and no vacancies or defects, we still observe that the low energy spectrum is dominated by dark, surface-associated excitations, which are more numerous in larger NCs. Surface structure analysis shows that the majority of these states involve holes that are localized on two-coordinate Se atoms. As chalcogenide atoms are not passivated by any Lewis base ligand, varying the ligand should not dramatically change the number of dark states, which we confirm by simulating three passivation schemes. Our results have significant implications for understanding CdSe NC photophysics, and suggest that photochemistry and short-range photoinduced charge transfer should be much more facile than previously anticipated.

Superposition-state N2+ produced in the intermolecular charge transfer from low-energy Ar+ to N2

2021 ◽  
Vol 154 (23) ◽  
pp. 234303
Author(s):  
Jie Hu ◽  
Jing-Chen Xie ◽  
Chun-Xiao Wu ◽  
Shan Xi Tian
Keyword(s):  
Charge Transfer ◽  
Low Energy ◽  
Superposition State ◽  
Intermolecular Charge Transfer

Angular, energy and charge distribution in the scattering of low-energy helium ions by an amorphous silicon surface

1998 ◽  
Vol 10 (4) ◽  
pp. 741-752 ◽  
Author(s):  
B Arezki ◽  
Y Boudouma ◽  
P Benoit-Cattin ◽  
A C Chami ◽  
C Benazeth ◽  
...  
Keyword(s):  
Amorphous Silicon ◽  
Charge Distribution ◽  
Silicon Surface ◽  
Low Energy ◽  
Helium Ions ◽  
Angular Energy

Charge transfer between Helium ions and metastable Helium

1982 ◽  
Vol 69 (1-2) ◽  
pp. 213-221 ◽  
Author(s):  
R.H. Neynaber ◽  
S.Y. Tang
Keyword(s):  
Charge Transfer ◽  
Helium Ions ◽  
Metastable Helium

Charge transfer in bio-molecular damage by low energy protons

1973 ◽  
Vol 18 (2) ◽  
pp. 287-289 ◽  
Author(s):  
R E Johnson ◽  
E T Trevisani ◽  
J H Harberger
Keyword(s):  
Charge Transfer ◽  
Low Energy ◽  
Molecular Damage

Further investigations of charge exchange and electron detachment - I. Ion energies 3 to 40 keV - II. Ion energies 100 to 4000 eV

1955 ◽  
Vol 227 (1171) ◽  
pp. 466-486 ◽  
Keyword(s):  
Charge Transfer ◽  
Energy Range ◽  
Cross Sections ◽  
Atomic Hydrogen ◽  
Molecular Hydrogen ◽  
Hydrogen Ions ◽  
Electron Detachment ◽  
Rare Gases ◽  
Helium Ions ◽  
Ion Energies

This paper describes the measurement of charge transfer cross-sections for protons, molecular hydrogen ions and helium ions in the rare gases and hydrogen, and electron detachment cross-sections for negative atomic hydrogen ions in the rare gases. Part I describes the energy range 3 to 40 keV. In part II the energy range 100 to 4000 eV is described, and the results are discussed in terms of the pseudo-adiabatic hypothesis. Comparisons are made with other experimental results, and anomalous molecular cases are discussed in terms of reactions involving anti-bonding states.

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