Study of SILC and interface trap generation due to high field stressing and its operating temperature dependence in 2.2 nm gate dielectrics

2002 ◽  
Vol 49 (4) ◽  
pp. 699-701 ◽  
Author(s):  
D.G. Borse ◽  
S.J. Vaidya ◽  
A.N. Chandorkar
Keyword(s):  
Temperature Dependence ◽  
High Field ◽  
Gate Dielectrics ◽  
Operating Temperature ◽  
Interface Trap

scholarly journals Temperature dependence of the high-field magnetization in Fe-Ag granular alloys and discontinuous multilayers

2010 ◽  
Vol 200 (7) ◽  
pp. 072050
Author(s):  
L F Kiss ◽  
J Balogh ◽  
L Bujdosó ◽  
D Kaptás ◽  
F Tanczikó ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
High Field ◽  
Field Magnetization ◽  
High Field Magnetization ◽  
Granular Alloys

scholarly journals Plasma catalysis: A solution for environmental problems

2010 ◽  
Vol 82 (6) ◽  
pp. 1329-1336 ◽  
Author(s):  
J. Christopher Whitehead
Keyword(s):  
Energy Efficiency ◽  
Temperature Dependence ◽  
Operating Temperature ◽  
Atmospheric Plasma ◽  
Plasma Catalysis ◽  
Waste Gas ◽  
Gas Streams ◽  
Waste Gas Streams ◽  
Air Streams ◽  
By Products

The combination of a nonthermal, atmospheric plasma with a catalyst is investigated as a means of destroying pollutants in waste gas streams. Using the examples of dichloromethane (DCM) and toluene in air streams, it is shown that the destruction of the pollutant can be increased whilst lowering the operating temperature, giving increasing energy efficiency. Unwanted by-products can also be reduced selectively by appropriate choice of catalyst and of the plasma–catalyst configuration. By studying the temperature dependence of plasma catalysis, some ideas can be obtained about the nature of the interaction between plasma and catalyst in the processing.

Temperature dependence of electrocatalytic water oxidation: a triple device model with a photothermal collector and photovoltaic cell coupled to an electrolyzer

2017 ◽  
Vol 198 ◽  
pp. 169-179 ◽  
Author(s):  
Biaobiao Zhang ◽  
Quentin Daniel ◽  
Ming Cheng ◽  
Lizhou Fan ◽  
Licheng Sun
Keyword(s):  
Temperature Dependence ◽  
Water Splitting ◽  
Transition Metal Oxides ◽  
Water Oxidation ◽  
Operating Temperature ◽  
Photovoltaic Cell ◽  
Universal Method ◽  
Efficient Utilization ◽  
Device Model ◽  
Model Combining

A water oxidation electrocatalyst with high activity is essential for promoting the overall efficiency of an integrated water splitting device. Herein, by investigating the prominent temperature dependence of electrocatalytic water oxidation catalyzed by first row transition metal oxides, we present how to elevate the operating temperature of the electrolyzer as an effective and universal method to improve its electrocatalytic performance. Consequently, a triple device model combining a photothermal collector with a photovoltaic (PV) cell coupled to a water splitting device is proposed to realize the comprehensive and efficient utilization of solar energy: solar heat + PV + electrolyzer.

scholarly journals Magnetic Correlations in Spin Glasses above the Freezing Temperature investigated by High Field Mössbauer Spectroscopy

1998 ◽  
Vol 51 (2) ◽  
pp. 349 ◽  
Author(s):  
J. Bogner ◽  
H. Schachner ◽  
M. Reissner ◽  
W. Steiner
Keyword(s):  
External Field ◽  
Temperature Dependence ◽  
Power Law ◽  
Spin Glasses ◽  
High Field ◽  
Freezing Temperature ◽  
Hyperfine Fields ◽  
Magnetic Correlations ◽  
Neighbour Shell ◽  
Centre Shift

The strong dynamics of magnetic correlations are observed by high field 57Fe Mössbauer investigations for the spin glasses AuFe and Y(Fe, Al)2 in the temperature interval between the freezing temperature Tf and approximately 7 to 10Tf. All recorded spectra can be analysed with a model which takes into account these dynamics by allowing the formation of correlated states after a stochastically varying time τoff and their decay after a time τon, restricting the number of subspectra to the different number of Fe atoms in the first neighbour shell. Whereas for the different Fe environments, in addition to centre shift and quadrupole splitting, different hyperfine fields of the two stochastically formed states can always be resolved, the same set of τon and τoff values was obtained for all subspectra above approximately 4Tf. The external field hinders the decay of the correlated regions. The temperature dependence of ¿ on scales with Tf and exhibits a power law with exponents of –2 for the Fe-rich and –1 for the Fe-poor compounds.

ESR STUDIES OF GMR RELATED MATERIALS I: ESR of Mn IN LaMnO3 AND La0.99Ca0.01MnO3

2000 ◽  
Vol 14 (25n26) ◽  
pp. 883-897 ◽  
Author(s):  
N. ARAI ◽  
K. SUGAWARA
Keyword(s):  
Magnetic Susceptibility ◽  
Temperature Dependence ◽  
Spin System ◽  
High Field ◽  
Energy Gap ◽  
Low Field ◽  
High Field Esr ◽  
Clear Signal ◽  
Spin Clusters ◽  
G Value

ESR measurements are carried out for La 1-x Ca x MnO 3 (x=0, 0.01) from 760 K down to 4 K. A clear signal was observed above 260 K, presumably arising from Mn 3+ and Mn 4+, but two kinds of signals, the low-field and high-field ESR with g≃2, were observed below it. The high- and low-field signals are tentatively assumed to originate from Mn 4+ and Mn 3+, respectively. The g-value, linewidth, and intensity of the high-field signal nearly follow ∝1/(T-106). The temperature dependence of g-shift of the low-field signal is similar to that of magnetic susceptibility of LaMnO 3. The ESR intensity anomalously increases at temperatures between about 150 K and 250 K, which is tentatively ascribed to the occurrence of "spin-clusters". Above ≃300 K, the ESR intensity nearly follows Curie's law, and the linewidth is proportional to exp (-500/T), an indication of some kind of energy-gap existence in the Mn spin system.

Methods to Reduce the Operating Temperature of Photovoltaic Cells

2016 ◽  
Vol 820 ◽  
pp. 224-229 ◽  
Author(s):  
Peter Hysek
Keyword(s):  
Temperature Dependence ◽  
Operating Temperature ◽  
Photovoltaic Cells ◽  
Building Envelope ◽  
Electrical Efficiency

The article includes an overview of the effectiveness of different generations of photovoltaic cells, the temperature dependence of the electrical efficiency and methods of integration into the building envelope. Furthermore, the article focuses on experimental and simulation of proven methods to reduce the operating temperature of photovoltaic cells.

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