Importance of Protons and Specifically Adsorbing Ions on Changing Capacitance, Space Charge Potential Inside the Solid, and the Interfacial Potential at the TiO 2 Aqueous Solution Interface

2016 ◽  
Vol 219 ◽  
pp. 577-587 ◽  
Author(s):  
Yang Wang ◽  
M. Isabel Tejedor-Tejedor ◽  
Wei Tan ◽  
Marc A. Anderson
Keyword(s):  
Aqueous Solution ◽  
Space Charge ◽  
Solution Interface ◽  
Space Charge Potential ◽  
Charge Potential ◽  
Interfacial Potential

scholarly journals Effect of chamber pressure induced space charge potential on ion acceleration in laser produced plasma

2000 ◽  
Vol 18 (2) ◽  
pp. 315-324 ◽  
Author(s):  
V.N. RAI ◽  
M. SHUKLA ◽  
H.C. PANT
Keyword(s):  
Magnetic Field ◽  
Space Charge ◽  
Laser Intensity ◽  
Chamber Pressure ◽  
Ion Acceleration ◽  
Laser Irradiance ◽  
X Ray ◽  
Space Charge Potential ◽  
Charge Potential ◽  
Laser Produced Plasma

The acceleration of ions (∼108 cm/s) has been observed in the laser produced plasma expanding across an uniform magnetic field at low laser irradiance (∼5 × 1012 W/cm2). This acceleration was found correlated with the onset of instabilities in the plasma and decrease in the slope of X-ray emission with laser intensity. A large enhancement in the X-ray emission (E > 2 KeV) from plasma in the presence of magnetic field supports the observation of ion acceleration. An increase in the number of ions was noticed in the pressure range in which enhancement in the self-generated spontaneous magnetic field has already been established. Even scaling of both the variations with chamber pressure during rising part was found in close agreement, which further supports the correlation. The possibility of an external magnetic field in triggering the acceleration and space charge potential in generating a correlation (between ion acceleration and self-generated spontaneous magnetic field) has been discussed.

scholarly journals Influence of Ce3+ polarons on grain boundary space-charge in proton conducting Y-doped BaCeO3

2018 ◽  
Vol 20 (23) ◽  
pp. 16209-16215 ◽  
Author(s):  
Jonathan M. Polfus ◽  
Mehdi Pishahang ◽  
Rune Bredesen
Keyword(s):  
Grain Boundary ◽  
Space Charge ◽  
Oxygen Vacancies ◽  
Proton Conducting ◽  
Space Charge Potential ◽  
Charge Potential ◽  
Type Conduction ◽  
Boundary Core ◽  
Boundary Space

Ce3+ polarons associated with oxygen vacancies in the grain boundary core lowers the space-charge potential and may enhance n-type conduction.

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