Notizen: Fermi-Niveau und Flachbandpotential von Molekülkristallen aromatischer Kohlenwasserstoffe

1967 ◽  
Vol 22 (5) ◽  
pp. 843-844 ◽  
Author(s):  
Frank Lohmann
Keyword(s):  
Aromatic Hydrocarbon ◽  
Fermi Level ◽  
Electron Affinity ◽  
Ionization Energy ◽  
Flat Band ◽  
Flat Band Potential ◽  
First Approximation ◽  
Hydrocarbon Molecules

The sum of ionization energy and electron affinity for aromatic hydrocarbon molecules is constant and therefore the Fermi level for intrinsic aromatic hydrocarbon crystals is in first approximation independent of the nature of the hydrocarbon. This relationship leads in turn to a constant value for the flat band potential of aromatic hydrocarbon crystals in contact with an electrolyte. An estimate of this value is given.

Fermi level pinning or semiconductor electrodes in aqueous and non aqueous electrolytes: influence of the modification of the electrode surface

1989 ◽  
Vol 67 (3) ◽  
pp. 382-388 ◽  
Author(s):  
O. Savadogo
Keyword(s):  
Fermi Level ◽  
Acidic Medium ◽  
Open Circuit ◽  
Flat Band ◽  
Flat Band Potential ◽  
Fermi Level Pinning ◽  
Material Surfaces ◽  
Electrolyte Interface ◽  
Semiconductor Electrodes ◽  
Minority Carriers

Modification of several semiconductors material surfaces with H4SiW12O40•nH2O have been carried out to produce an increase in the open circuit photopotential at the semiconductor/electrolyte interface (Voc) without changing the flat-band potential. The augmentation of Voc is shown to be attributed to a decrease of the minority carriers recombination at the semiconductor/electrolyte interface along with the suppression of Fermi level pinning. The enhancement of Voc and the electrocatalytic activity of the hydrogen evolution reaction in acidic medium of the derivatized electrodes is attributed to the Fermi level unpinning. Keywords: photoelectrodes, photoelectrocatalysis, pinning, modification improvement.

Fermi level, work function and vacuum level

2016 ◽  
Vol 3 (1) ◽  
pp. 7-10 ◽  
Author(s):  
Antoine Kahn
Keyword(s):  
Charge Carrier ◽  
Fermi Level ◽  
Work Function ◽  
Electron Affinity ◽  
Ionization Energy ◽  
Carrier Injection ◽  
Vacuum Level ◽  
Charge Carrier Injection

Electronic levels and energies of a solid, such as Fermi level, vacuum level, work function, ionization energy or electron affinity, are of paramount importance for the control of device behavior, charge carrier injection and transport.

Fermi-level pinning and effect of deposition bath pH on the flat-band potential of electrodeposited n-Cu2O in an aqueous electrolyte

2016 ◽  
Vol 253 (10) ◽  
pp. 1965-1969 ◽  
Author(s):  
F. S. B. Kafi ◽  
K. M. D. C. Jayathileka ◽  
R. P. Wijesundera ◽  
W. Siripala
Keyword(s):  
Fermi Level ◽  
Aqueous Electrolyte ◽  
Flat Band ◽  
Flat Band Potential ◽  
Fermi Level Pinning

An interpretation on the thermodynamic properties of liquid Pb–Te alloys

2020 ◽  
Vol 39 (1) ◽  
pp. 297-303
Author(s):  
Toru Akasofu ◽  
Masanobu Kusakabe ◽  
Shigeru Tamaki
Keyword(s):  
Thermodynamic Properties ◽  
Electron Affinity ◽  
Ionization Energy ◽  
Narrow Band ◽  
Structural Information ◽  
Lead Telluride ◽  
Liquid Lead ◽  
Metallic State ◽  
Ternary Solution ◽  
Conduction Electrons

AbstractThe bonding character of liquid lead telluride \text{PbTe} is thermodynamically investigated in detail. Its possibility as an ionic melt composed of cation {\text{Pb}}^{2+} and anion {\text{Te}}^{2-} is not acceptable, by comparing the ionization energy of \text{Pb} atom, electron affinity of \text{Te} atom and the ionic bonding energy due to the cation {\text{Pb}}^{2+} and anion {\text{Te}}^{2-} with the help of structural information. Solid lead telluride PbTe as a narrow band gap semiconductor might yield easily the overlapping of the tail of valence band and that of conduction one. And on melting, it becomes to an ill-conditioned metallic state, which concept is supported by the electrical behaviors of liquid Pb–Te alloys observed by the present authors. As structural information tells us about the partial remain of some sorts of covalent-type mono-dipole and poly-dipole of the molecule \text{PbTe}, all systems are thermodynamically explained in terms of a mixture of these molecules and cations {\text{Pb}}^{4+} and {\text{Te}}^{2+} and a small amount of the conduction electrons are set free from these elements based on the ternary solution model.

Flat band potential of as-grown n-MoSe2 single crystal electrodes

1988 ◽  
Vol 110 (1) ◽  
pp. 293-299 ◽  
Author(s):  
R. Srivastava ◽  
V. M. Pathak ◽  
V. V. Rao
Keyword(s):  
Single Crystal ◽  
Flat Band ◽  
Flat Band Potential

scholarly journals IONIZATION OF POLYCYCLIC AROMATIC HYDROCARBON MOLECULES AROUND THE HERBIG Ae/Be ENVIRONMENT

2011 ◽  
pp. 143-154
Author(s):  
ITSUKI SAKON ◽  
TAKASHI ONAKA ◽  
YOSHIKO K. OKAMOTO ◽  
HIROKAZU KATAZA ◽  
HIDEHIRO KANEDA ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
Polycyclic Aromatic ◽  
Hydrocarbon Molecules
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