The Effect of Oxygen Adsorption on Photo‐ and Semiconduction of β‐Carotene

1961 ◽  
Vol 34 (3) ◽  
pp. 812-819 ◽  
Author(s):  
Barnett Rosenberg
Keyword(s):  
Oxygen Adsorption ◽  
Effect Of Oxygen ◽  
Β Carotene

THE EFFECT OF OXYGEN ADSORPTION ON THE CONDUCTIVITY OF PBTE FILMS.

2020 ◽  
Vol 6 (8(77)) ◽  
pp. 21-23
Author(s):  
S.N. Sarmasov ◽  
R.Sh. Rahimov ◽  
T.Sh. Abdullayev
Keyword(s):  
Spectral Region ◽  
Current Flow ◽  
Oxygen Adsorption ◽  
Tunneling Mechanism ◽  
Pn Junction ◽  
Flow Through ◽  
Pn Junctions ◽  
Effect Of Oxygen

The effect of oxygen adsorption on the conductivity of PbTe films is studied. Pn junctions based on PbTe films are photosensitive in the IR spectral region with a maximum photosensitivity of 𝜆𝑚𝑎𝑥 microns. The tunneling mechanism of current flow through the pn junction is shown.

The effect of oxygen adsorption on catalytic activity of SnO2 in CO oxidation

2011 ◽  
Vol 169 (1) ◽  
pp. 192-199 ◽  
Author(s):  
Ireneusz Kocemba ◽  
Jacek M. Rynkowski
Keyword(s):  
Catalytic Activity ◽  
Co Oxidation ◽  
Oxygen Adsorption ◽  
Effect Of Oxygen

Effect of oxygen adsorption on surface tension of liquid copper: Experiments and thermodynamic models

2014 ◽  
Vol 313 ◽  
pp. 116-122 ◽  
Author(s):  
Majid Abbasi ◽  
Joonho Lee ◽  
Minsoo Shin ◽  
Yunkyum Kim ◽  
Youngjo Kang
Keyword(s):  
Surface Tension ◽  
Liquid Copper ◽  
Oxygen Adsorption ◽  
Thermodynamic Models ◽  
Effect Of Oxygen

Two Levels of Ni/n-GaAs Schottky Barrier Heights Formed on a Wafer by Controlling pH of Pretreatment Chemicals: Effect of Oxygen Adsorption

2000 ◽  
Vol 39 (Part 1, No. 10) ◽  
pp. 5788-5793 ◽  
Author(s):  
Tatsutoshi Tsuzuku ◽  
Tomoyuki Sugimura ◽  
Yuuki Kasai ◽  
Takao Inokuma ◽  
Kouichi Iiyama ◽  
...  
Keyword(s):  
Schottky Barrier ◽  
Oxygen Adsorption ◽  
Barrier Heights ◽  
Effect Of Oxygen

EFFECT OF OXYGEN ADSORPTION ON THE PHOTOELECTRON YIELD FROM TUNGSTEN IN THE VACUUM ULTRAVIOLET

1967 ◽  
Vol 10 (11) ◽  
pp. 305-307 ◽  
Author(s):  
B. J. Waclawski ◽  
L. R. Hughey ◽  
R. P. Madden
Keyword(s):  
Vacuum Ultraviolet ◽  
Oxygen Adsorption ◽  
Effect Of Oxygen

EFFECT OF AMBIENT OXYGEN ON THE SEMICONDUCTIVITIES OF EVAPORATED FILMS OF MESONAPHTHODIANTHRENE AND MESONAPHTHODIANTHRONE

1961 ◽  
Vol 39 (7) ◽  
pp. 1475-1483 ◽  
Author(s):  
H. Kuroda ◽  
E. A. Flood
Keyword(s):  
Activation Energy ◽  
Oxygen Adsorption ◽  
Activation Energies ◽  
Free Film ◽  
Ambient Oxygen ◽  
Spin Resonance ◽  
Adsorption Surface ◽  
Lower Temperature ◽  
Effect Of Oxygen ◽  
Surface Conduction

The electrical conductivity of an "evaporated" film of mesonaphthodianthrene increases when the film is exposed to oxygen. The increase in conductivity is associated with changes in the semiconductivity activation energies. The activation energy for the oxygen-free anthrene (bulk conduction) is 0.74 ev while that associated with oxygen adsorption (surface conduction) is 0.40 ev. In marked contrast, the conductivity of an evaporated film of mesonaphthodianthrone decreases when exposed to oxygen. An oxygen-free film of the anthrone has different activation energies in different temperature regions, the activation energies being 0.73 ev and 0.43 ev in the higher and lower temperature regions, respectively. The conduction associated with the lower activation energy decreases when the film is exposed to oxygen.The effect of oxygen on the semiconductivities of mesonaphthodianthrene and mesonaphthodianthrone are compared with the effect of oxygen on their electron spin resonance spectra.

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