Process development and material characterization of polycrystalline Bi2Te3, PbTe, and PbSnSeTe thin films on silicon for millimeter-scale thermoelectric generators

2008 ◽  
Vol 26 (4) ◽  
pp. 739-744 ◽  
Author(s):  
I. Boniche ◽  
B. C. Morgan ◽  
P. J. Taylor ◽  
C. D. Meyer ◽  
D. P. Arnold
Keyword(s):  
Thin Films ◽  
Material Characterization ◽  
Process Development ◽  
Thermoelectric Generators

Growth and Characterization of Chalcopyrite Nanocrystals: Beyond Conventional Thin Films

2007 ◽  
Vol 1012 ◽  
Author(s):  
David Fuertes Marrón ◽  
Sebastian Lehmann ◽  
Justyna Kosk ◽  
Sascha Sadewasser ◽  
Martha Ch. Lux-Steiner
Keyword(s):  
Thin Films ◽  
Material Characterization ◽  
Processing Parameters ◽  
Scanning Probe ◽  
Vapor Liquid Solid ◽  
Embedded Structures ◽  
Solid Substrates ◽  
Growth Method ◽  
Chalcogenide Compound

AbstractA dry method for the growth of highly-structured Cu-containing chalcopyrite material on solid substrates, based on the use of metallic precursors, is described. Nanocrystals, sub-micrometer polycrystalline dots, and macroscopic clusters have be grown, either as isolated units or alternatively as embedded structures in a matrix of a binary chalcogenide compound, by adjusting processing parameters. Vapor-liquid-solid (VLS) induced growth has been used for the growth of chalcopyrite nanowires. Examples of material characterization by scanning probe techniques are shown, demonstrating the suitability of the proposed growth method.

Free space material characterization of carbon nanotube thin films at sub-terahertz frequencies

2016 ◽  
Vol 30 (5) ◽  
pp. 589-598
Author(s):  
Sujitha Puthukodan ◽  
Ehsan Dadrasnia ◽  
Vinod V. K. Thalakkatukalathil ◽  
Horacio Lamela Rivera ◽  
Guillaume Ducournau ◽  
...  
Keyword(s):  
Thin Films ◽  
Carbon Nanotube ◽  
Free Space ◽  
Material Characterization ◽  
Terahertz Frequencies ◽  
Space Material

Electrochemical Study and Material Characterization of Electroless CoNiWPB Thin Films

2019 ◽  
Vol 25 (41) ◽  
pp. 107-116
Author(s):  
Yosi Y. Shacham-Diamand ◽  
Yelena Sverdlov ◽  
Alla Duchin
Keyword(s):  
Thin Films ◽  
Material Characterization ◽  
Electrochemical Study

Temperature-dependent material characterization of CuZnSe2 thin films

2020 ◽  
Vol 701 ◽  
pp. 137941
Author(s):  
H.H. Gullu ◽  
O. Surucu ◽  
M. Terlemezoglu ◽  
M. Isik ◽  
C. Ercelebi ◽  
...  
Keyword(s):  
Thin Films ◽  
Material Characterization ◽  
Temperature Dependent

Fabrication and Characterization of Pb1-xYbxSe0.2Te0.8 Based Alloy Thin Films Thermoelectric Generators Grown Using Thermal Evaporation Method

2013 ◽  
Vol 756 ◽  
pp. 259-265 ◽  
Author(s):  
Arshad Hmood ◽  
Arej Kadhim ◽  
Abu Hassan Haslan
Keyword(s):  
Thin Films ◽  
Open Circuit Voltage ◽  
Maximum Output Power ◽  
Open Circuit ◽  
Maximum Output ◽  
Thermoelectric Generators ◽  
Thermal Evaporation Method ◽  
Glass Substrates ◽  
In Series

In the current work p-Pb0.925Yb0.075Te:Te and n-Pb0.925Yb0.075Se0.2Te0.8 powders synthesized by solid-state microwave route were used to fabricating thermally evaporated thin films. The micro-thermoelectric devices were composedof 20-pairs and 10-pairs p-Pb0.925Yb0.075Te:Te and n-Pb0.925Yb0.075Se0.2Te0.8 thin films on glass substrates. Overall size of the thin films thermoelectric generators which consist of 20-pairs and 10-pairs of legs connected by aluminumelectrodes were 23 mm×20 mm and 12 mm×10 mm, respectively. The 20-pairs p–n thermocouples in series device generated output maximum open-circuit voltage of 275.3 mV and a maximum output power up to 54.4 nW at temperature difference ∆T= 162 K, and 109.4 mV and 16.7 nW at ∆T=162 K, for 10-pairs, respectively.

Characterization of Thin Films using Micromechanical Structures

1992 ◽  
Vol 276 ◽  
Author(s):  
R. I. Pratt ◽  
G. C. Johnson ◽  
R. T. Howe ◽  
D. J. Nikkel
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Nonlinear Dynamic ◽  
Material Characterization ◽  
Intrinsic Stress ◽  
Nonlinear Dynamic Response ◽  
Wafer Substrate ◽  
Micromechanical Structures ◽  
Geometrically Constrained

ABSTRACTMicromechanical structures designed for material characterization through analysis of their nonlinear dynamic response are presented. The structures consist of a rigid movable mass supported by beams which are attached to the wafer substrate. The structures are designed so that they are geometrically constrained, which is the source of their nonlinearity. The nonlinearity is shown to be well modeled by Duffing's equation for a stiffening spring and it is this model which is used to fit the test data to the desired mechanical properties, namely Young's modulus, intrinsic stress and damping.

Novel electrode materials for electrochemical capacitors: Part II. Material characterization of sol-gel-derived and electrodeposited manganese dioxide thin films

2000 ◽  
Vol 15 (10) ◽  
pp. 2096-2106 ◽  
Author(s):  
Suh-Cem Pang ◽  
Marc A Anderson
Keyword(s):  
Thin Films ◽  
Material Characterization ◽  
Electrode Materials ◽  
Sol Gel ◽  
Cycling Stability ◽  
Surface Layers ◽  
Density Values ◽  
Sol Gel Films ◽  
Highly Porous

Material characterization of sol-gel-derived and electrodeposited MnO2 thin films showed that their microstructures are highly porous in nature. While sol-gel-derived films are nanoparticulate, electrodeposited films showed macropores of random and irregular platelike structures, comprising much denser surface layers and highly porous underlying layers. On the basis of calculated and theoretical density values of 1 and 4.99 g/cm3, respectively, the porosity of sol-gel-derived MnO2 films was determined to be as high as 80%, which is substantially higher than electrodeposited films at 67%. Apart from their higher specific capacitance, sol-gel-derived MnO2 films appeared to exhibit higher cycling stability and reversibility than electrodeposited MnO2 films. In the case of sol-gel films, thinner films appeared to exhibit higher cycling stability than thicker films. There was less alteration in surface morphology and microstructure, and the rate of loss in charge-storage capacity upon voltammetric cycling was not as significant for sol-gel MnO2 thin films

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