scholarly journals Evaluation of the optical properties for thick films of epoxy-diamond paste blend prepared by the casting method

2019 ◽  
Vol 157 ◽  
pp. 626-634
Author(s):  
Rihab Nassr Fadhil ◽  
Mahmood Radhi Jobayr ◽  
Ahlam Rashid Khazaal ◽  
Shatha H. Mahdi
Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 140
Author(s):  
Lichen Liu ◽  
Ziping Cao ◽  
Min Chen ◽  
Jun Jiang

This paper reports the fabrication and characterization of (Bi0.48Sb1.52)Te3 thick films using a tape casting process on glass substrates. A slurry of thermoelectric (Bi0.48Sb1.52)Te3 was developed and cured thick films were annealed in a vacuum chamber at 500–600 °C. The microstructure of these films was analyzed, and the Seebeck coefficient and electric conductivity were tested. It was found that the subsequent annealing process must be carefully designed to achieve good thermoelectric properties of these samples. Conductive films were obtained after annealing and led to acceptable thermoelectric performance. While the properties of these initial materials are not at the level of bulk materials, this work demonstrates that the low-cost tape casting technology is promising for fabricating thermoelectric modules for energy conversion.


2021 ◽  
Vol 19 (4) ◽  
pp. 27-37
Author(s):  
Doaa E. Al-Kateb ◽  
Ali R. Abdulridha

In this study preparing and investigating of the (PVA/PVP:Sr2NO3) nanocomposites films by using casting method with different concentration of Sr2NO3 as (0, 1, 3, 5, and 7 wt. %). Optical properties obtained by UV-Vis spectrometer, OM and FTIR spectra have been revealed in this study, the absorbance increased by increasing of Sr2NO3 nanoparticles concentrations, the energy-gap (allowed and forbidden) transitions decreased by increasing of the nanoparticles concentration.


2021 ◽  
Vol 12 (1) ◽  
pp. 170-179

ZnO-Polystyrene nanoparticles doped with Fe2O3 were prepared by the casting method. Both Ed and Eo were calculated. εL and N/m* increase with filler concentrations for these samples. On the other hand, both M-1, M-3, decreased with increasing filler. The filler concentrations affected on determined values of both of ε\ and ε\\. These values increase with filler, and also the same result was achieved for both σ1 and σ2, which also increases with filler. The relation between VELF and SELF was determined. χ(1) increases with increasing filler ratio. n2, χ(3), βc, were determined theoretically. The electrical susceptibility χe and relative permittivity εr increase with the increase of filler concentration as a result of increasing electron mobility.


2016 ◽  
Vol 163 (8) ◽  
pp. A1653-A1659 ◽  
Author(s):  
R. Jiménez ◽  
A. del Campo ◽  
M. L. Calzada ◽  
J. Sanz ◽  
S. D. Kobylianska ◽  
...  

2009 ◽  
Vol 255 (8) ◽  
pp. 4680-4683 ◽  
Author(s):  
Xiaolin Liu ◽  
Kun Han ◽  
Mu Gu ◽  
Shiming Huang ◽  
Bo Liu ◽  
...  

2021 ◽  
pp. 2000669
Author(s):  
Abinash Adhikari ◽  
Ewa Przezdziecka ◽  
Sushma Mishra ◽  
Piotr Sybilski ◽  
Jacek Sajkowski ◽  
...  

2020 ◽  
Vol 9 (6) ◽  
pp. 693-702
Author(s):  
Jie Xu ◽  
Qiling Lu ◽  
Jinfeng Lin ◽  
Cong Lin ◽  
Xinghua Zheng ◽  
...  

AbstractEr3+-doped Ba0.85Ca0.15Ti0.9Zr0.1O3 (xEr-BCTZ, x = 0, 0.005, 0.01, 0.015) multifunctional thick films were prepared by the tape-casting method, using sol-gel-derived nano-sized powders as the matrix material. The surface morphologies, photoluminescence, and electrical properties were investigated. Dense microstructures with pure perovskite structure were obtained in the thick films. By doping an appropriate amount of Er3−, the samples exhibit superior up-conversion photoluminescence performance and simultaneously enhanced electrical performances. In addition, relatively higher texture fractions (with the largest value of 83.5%) were realized through introducing plate-like BaTiO3 templates to make the thick film grow by the [001]c orientation. And the ferro-/piezoelectric properties of the thick films were further improved, showing potential in the applications of micro-optoelectronic devices.


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