scholarly journals Synthesis and Characterization of Al- and SnO2-Doped ZnO Thermoelectric Thin Films

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6929
Author(s):  
Giovanna Latronico ◽  
Saurabh Singh ◽  
Paolo Mele ◽  
Abdalla Darwish ◽  
Sergey Sarkisov ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Conductivity ◽  
Room Temperature ◽  
Bulk Material ◽  
Laser Deposition ◽  
Sno2 Thin Film ◽  
Order Of Magnitude ◽  
Doped Zno ◽  
Thermoelectric Thin Films

The effect of SnO2 addition (0, 1, 2, 4 wt.%) on thermoelectric properties of c-axis oriented Al-doped ZnO thin films (AZO) fabricated by pulsed laser deposition on silica and Al2O3 substrates was investigated. The best thermoelectric performance was obtained on the AZO + 2% SnO2 thin film grown on silica, with a power factor (PF) of 211.8 μW/m·K2 at 573 K and a room-temperature (300 K) thermal conductivity of 8.56 W/m·K. PF was of the same order of magnitude as the value reported for typical AZO bulk material at the same measurement conditions (340 μW/m·K2) while thermal conductivity κ was reduced about four times.

Processing by Pulsed Laser Deposition and Structural, Morphological and Chemical Characterization of Bi-Pb-Sr-Ca-Cu-O and Bi-Pb-Sb-Sr-Ca-Cu-O Thin Films

2010 ◽  
Vol 75 ◽  
pp. 202-207
Author(s):  
Victor Ríos ◽  
Elvia Díaz-Valdés ◽  
Jorge Ricardo Aguilar ◽  
T.G. Kryshtab ◽  
Ciro Falcony
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Room Temperature ◽  
Pulsed Laser ◽  
Chemical Characterization ◽  
Laser Deposition ◽  
Nominal Composition ◽  
Deposition Parameters ◽  
The Relationship

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.

Long-term Room Temperature Instability in Thermal Conductivity of InGaZnO Thin Films

MRS Advances ◽  
2016 ◽  
Vol 1 (22) ◽  
pp. 1631-1636 ◽  
Author(s):  
Boya Cui ◽  
D. Bruce Buchholz ◽  
Li Zeng ◽  
Michael Bedzyk ◽  
Robert P. H. Chang ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Conductivity ◽  
Room Temperature ◽  
Storage Time ◽  
Laser Deposition ◽  
Low Oxygen ◽  
X Ray Diffraction ◽  
3Ω Method ◽  
X Ray

ABSTRACTThe cross-plane thermal conductivities of InGaZnO (IGZO) thin films in different morphologies were measured on three occasions within 19 months, using the 3ω method at room temperature 300 K. Amorphous (a-), semi-crystalline (semi-c-) and crystalline (c-) IGZO films were grown by pulsed laser deposition (PLD), followed by X-ray diffraction (XRD) for evaluation of film quality and crystallinity. Semi-c-IGZO shows the highest thermal conductivity, even higher than the most ordered crystal-like phase. After being stored in dry low-oxygen environment for months, a drastic decrease of semi-c-IGZO thermal conductivity was observed, while the thermal conductivity slightly reduced in c-IGZO and remained unchanged in a-IGZO. This change in thermal conductivity with storage time can be attributed to film structural relaxation and vacancy diffusion to grain boundaries.

Characterization of zinc oxide thin films prepared by pulsed laser deposition at room temperature

2008 ◽  
Vol 202 (22-23) ◽  
pp. 5467-5470 ◽  
Author(s):  
Norihiro Sakai ◽  
Yoshihiro Umeda ◽  
Fumiaki Mitsugi ◽  
Tomoaki Ikegami
Keyword(s):  
Thin Films ◽  
Zinc Oxide ◽  
Pulsed Laser Deposition ◽  
Room Temperature ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Oxide Thin Films

Characterization of low resistivity Ga-doped ZnO thin films on Si substrates prepared by pulsed laser deposition

2019 ◽  
Vol 6 (10) ◽  
pp. 106421
Author(s):  
Guankong Mo ◽  
Jiahui Liu ◽  
Guotao Lin ◽  
Zhuoliang Zou ◽  
Zeqi Wei ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Zno Thin Films ◽  
Low Resistivity ◽  
Si Substrates ◽  
Doped Zno

Growth and characterization of Sn doped ZnO thin films by pulsed laser deposition

2006 ◽  
Vol 203 (6) ◽  
pp. 1383-1389 ◽  
Author(s):  
E. López-Ponce ◽  
J. L. Costa-Krämer ◽  
M. S. Martín-González ◽  
F. Briones ◽  
J. F. Fernández ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Zno Thin Films ◽  
Doped Zno

Room-temperature ferromagnetic ordering in Mn-doped ZnO thin films grown by pulsed laser deposition

2006 ◽  
Vol 35 (4) ◽  
pp. 635-640 ◽  
Author(s):  
W. Y. Shim ◽  
K. A. Jeon ◽  
K. I. Lee ◽  
S. Y. Lee ◽  
M. H. Jung ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Room Temperature ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Zno Thin Films ◽  
Doped Zno ◽  
Ferromagnetic Ordering ◽  
Mn Doped
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