Effects of Co-doping and Microstructure on Charge Carrier Energy Filtering in Thermoelectric Titanium-Doped Zinc Aluminum Oxide

2022 ◽  
Author(s):  
Chhatrasal Gayner ◽  
Yuriy Natanzon ◽  
Yaron Amouyal
Keyword(s):  
Charge Carrier ◽  
Aluminum Oxide ◽  
Co Doping ◽  
Energy Filtering ◽  
Carrier Energy ◽  
Zinc Aluminum Oxide

Controllable Seebeck Coefficients of a Metal-Diffused Aluminum Oxide Layer via Conducting Filament Density and Energy Filtering

2019 ◽  
Vol 11 (26) ◽  
pp. 23303-23312 ◽  
Author(s):  
No-Won Park ◽  
Dae Yun Kang ◽  
Won-Yong Lee ◽  
Yo-Seop Yoon ◽  
Gil-Sung Kim ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Oxide Layer ◽  
Conducting Filament ◽  
Seebeck Coefficients ◽  
Energy Filtering ◽  
Aluminum Oxide Layer

scholarly journals Two-dimensional semimetal in wide HgTe quantum wells: Charge-carrier energy spectrum and magnetotransport

2013 ◽  
Vol 47 (12) ◽  
pp. 1562-1566 ◽  
Author(s):  
A. V. Germanenko ◽  
G. M. Minkov ◽  
O. E. Rut ◽  
A. A. Sherstobitov ◽  
S. A. Dvoretsky ◽  
...  
Keyword(s):  
Energy Spectrum ◽  
Charge Carrier ◽  
Quantum Wells ◽  
Two Dimensional ◽  
Carrier Energy

Enhanced thermoelectric properties in nanowires of InAs modulated with multiple-stub structures

2019 ◽  
Vol 9 (5) ◽  
pp. 498-502
Author(s):  
Changning Pan ◽  
Jun He ◽  
Zhiming Liu ◽  
Kaixing Shi
Keyword(s):  
Thermoelectric Properties ◽  
Figure Of Merit ◽  
Thermal Conductance ◽  
Volume Ratio ◽  
Electronic Density ◽  
Energy Filtering ◽  
Carrier Energy ◽  
Inas Nanowires ◽  
Scattering Matrix Method ◽  
Phonon Thermal Conductance

The thermoelectric properties of InAs nanowires modulated with the multiple-stub structures are studied using the scattering-matrix method. Owing to the very large surface-to-volume ratio, both the phonon and electron transport sensitively depend on the geometric structure. Carrier energy filtering which locally distorts electronic density of states strongly enhances the thermopower. Thus optimized thermopower, together with the significant reduction of the phonon thermal conductance, yields the high thermoelectric figure of merit ZT to 0.3∼1.9.

scholarly journals Fabrication of a Miniature Zinc Aluminum Oxide Nanowire Array Gas Sensor and Application for Environmental Monitoring

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Chin-Guo Kuo ◽  
Chi-Wu Huang ◽  
Jung-Hsuan Chen ◽  
Yueh-Han Liu
Keyword(s):  
Aluminum Alloy ◽  
Aluminum Oxide ◽  
Gas Sensor ◽  
Gas Sensing ◽  
Operating Temperature ◽  
Nanowire Array ◽  
Weight Percentage ◽  
Casting Technique ◽  
Semiconductor Gas Sensor ◽  
Zinc Aluminum Oxide

A miniature n-type semiconductor gas sensor was fabricated successfully using zinc aluminum oxide nanowire array and applied to sense oxygen. The present study provided a novel method to produce zinc aluminum alloy nanowire 80 nm in diameter by the vacuum die casting technique and then obtain zinc aluminum oxide nanowire array using the thermal oxidation technique. The gas sensing properties were evaluated through the change of the sensitivity. The factors influencing the sensitivity of the gas sensor, such as the alloy composition, operating temperature, and oxygen concentration, were investigated further. Experimental results indicated that the maximum sensitivity could be acquired when the weight percentage of aluminum was 5% in zinc aluminum alloy at the operating temperature of200°C.

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