scholarly journals Nanostructuring Bi2Te3-Based Thermoelectric Thin-Films Grown Using Pulsed Laser Deposition

2021 ◽  
Author(s):  
Le Thi Cam Tuyen ◽  
Phuoc Huu Le ◽  
Sheng-Rui Jian

This book chapter reports recent advances in nanostructured Bi2Te3-based thermoelectric (TE) thin-films fabricated by pulsed laser deposition (PLD). By controlling the processing conditions in PLD growths, various fascinating Bi2Te3-based nanostructured films with promising or enhanced TE properties have been successfully fabricated, including super-assembling of Bi2Te3 hierarchical nanostructures, self-assembled Bi2Te3 films with well-aligned 0D to 3D nanoblocks, polycrystalline-nanostructured Bi2Se3 and Bi2Te3 thin-films, etc. In addition, a PLD-growth mechanism for fabricating the super-assembling Bi2Te3 thin-films is presented. This book chapter provides fundamental understanding the relationship amongst processing condition, structure-morphology, and TE property of PLD-growths Bi2Te3-based thin-films. It also presents an overview of TE materials and applications with the challenges and perspectives.

2010 ◽  
Vol 75 ◽  
pp. 202-207
Author(s):  
Victor Ríos ◽  
Elvia Díaz-Valdés ◽  
Jorge Ricardo Aguilar ◽  
T.G. Kryshtab ◽  
Ciro Falcony

Bi-Pb-Sr-Ca-Cu-O (BPSCCO) and Bi-Pb-Sb-Sr-Ca-Cu-O (BPSSCCO) thin films were grown on MgO single crystal substrates by pulsed laser deposition. The deposition was carried out at room temperature during 90 minutes. A Nd:YAG excimer laser ( = 355 nm) with a 2 J/pulse energy density operated at 30 Hz was used. The distance between the target and substrate was kept constant at 4,5 cm. Nominal composition of the targets was Bi1,6Pb0,4Sr2Ca2Cu3O and Bi1,6Pb0,4Sb0,1Sr2Ca2Cu3OSuperconducting targets were prepared following a state solid reaction. As-grown films were annealed at different conditions. As-grown and annealed films were characterized by XRD, FTIR, and SEM. The films were prepared applying an experimental design. The relationship among deposition parameters and their effect on the formation of superconducting Bi-system crystalline phases was studied.


1997 ◽  
Vol 472 ◽  
Author(s):  
M.A. El Khakani ◽  
M. Chaker

ABSTRACTReactive pulsed laser deposition has been used to deposit IrO2 thin films on both SiO2 and fused quartz substrates, by ablating a metal iridium target in oxygen atmosphere. At a KrF laser intensity of about 1.7 × 109 W/cm2, IrO2 films were deposited at substrate deposition temperatures ranging from room-temperature to 700 °C under an optimum oxygen ambient pressure of 200 mTorr. The structure, morphology, electrical resistivity and optical transmission of the deposited films were characterized as a function of their deposition temperature (Td). High quality IrO2 films are obtained in the 400–600 °C deposition temperature range. They are polycrystalline with preferred orientations, depending on the substrate, and show a dense granular morphology. At a Td as low as 400 °C, highly conductive IrO2 films with room-temperature resistivities as low as (42±6) μΩ cm are obtained. Over the 300–600 °C Td range, the IrO2 films were found to exhibit a maximum optical transmission at 450 °C (∼ 45 % at 500 nm for 80 nm-thick films).


2002 ◽  
Vol 42 (1) ◽  
pp. 219-233 ◽  
Author(s):  
Félix E. Fernández ◽  
Yelitza González ◽  
Huimin Liu ◽  
Antonio Martínez ◽  
Vićtor Rodríguez ◽  
...  

2014 ◽  
Vol 117 (1) ◽  
pp. 401-407 ◽  
Author(s):  
A. Bellucci ◽  
E. Cappelli ◽  
S. Orlando ◽  
L. Medici ◽  
A. Mezzi ◽  
...  

2009 ◽  
Vol 36 (8) ◽  
pp. 2154-2157
Author(s):  
邹平 Zou Ping ◽  
李智东 Li Zhidong ◽  
张辉 Zhang Hui ◽  
赵昆渝 Zhao Kunyu ◽  
张鹏翔 Zhang Pengxiang

2016 ◽  
Vol 42 (10) ◽  
pp. 12490-12495 ◽  
Author(s):  
Kexiong Zhou ◽  
Jikun Chen ◽  
RenKui Zheng ◽  
Xinyou Ke ◽  
Tiansong Zhang ◽  
...  

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