Epitaxial growth and thermoelectric properties of c-axis oriented Bi1−xPbxCuSeO single crystalline thin films

CrystEngComm ◽  
2015 ◽  
Vol 17 (45) ◽  
pp. 8697-8702 ◽  
Author(s):  
Xiaolin Wu ◽  
Jiang-Long Wang ◽  
Hongrui Zhang ◽  
Shufang Wang ◽  
Shengjun Zhai ◽  
...  

Enhanced thermoelectric performance of c-axis oriented Bi1−xPbxCuSeO single crystalline thin films.

RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25298-25304 ◽  
Author(s):  
Haidong Wang ◽  
Dingshan Zheng ◽  
Xing Zhang ◽  
Hiroshi Takamatsu ◽  
Weida Hu

A precision H-type sensor method has been developed to measure the thermoelectric performance of individual single-crystalline CdS nanowires for the first time.


RSC Advances ◽  
2020 ◽  
Vol 10 (49) ◽  
pp. 29394-29401
Author(s):  
Chandrasekaran Abinaya ◽  
Kevin Bethke ◽  
Virgil Andrei ◽  
Jonas Baumann ◽  
Beatrix Pollakowski-Herrmann ◽  
...  

This study reveals the interplay between the composition and thermoelectric performance of mixed copper oxide thin films, which can be finely adjusted by varying the annealing atmosphere.


2000 ◽  
Vol 6 (S2) ◽  
pp. 1058-1059
Author(s):  
H-J. Gao ◽  
X.D. Fan ◽  
D. Kumar ◽  
K.G. Cho ◽  
R.K. Singh ◽  
...  

There has been intense interest in preparing single crystalline yttrium oxide (Y2O3) thin films for applications in ultra-large scale integration (ULSI) gate insulators, ULSI capacitors, and, by addition of suitable dopant species, for electroluminescent devices. Y2O3 has a C-type rare-earth sesquioxide structure, closely related to the fluorite structure with a cell parameter a= 1.060 nm and space group Th (Ia3). LaAIO3 (LAO) is a rhombohedral structure with lattice parameters a = 0.378 nm, θ ≤ 90.5°. The lattice mismatch with the <110> direction of the YO is therefore less than 0.8%, and so we would anticipate epitaxial growth of single crystalline YO thin films on the LAO (001) substrate to be feasible. Eu activated YO thin films were deposited by laser ablation on (001) LAO substrates. TEM bright field images and electron diffraction patterns were recorded in a Philips EM-400 electron microscope operated at lOOkV. Z-contrast imaging was conducted in a VG HB603 STEM at 300kV. In this presentation, we will report the epitaxial growth of YO thin films doped with ∼ wt 4% Eu on a LaAlO3 substrate, and the atomic structure of the interface.


2008 ◽  
Vol 47 (9) ◽  
pp. 7505-7509 ◽  
Author(s):  
Hironori Fujisawa ◽  
Yoshihiro Seioh ◽  
Masayoshi Kume ◽  
Masaru Shimizu

2017 ◽  
Vol 19 (36) ◽  
pp. 24886-24895 ◽  
Author(s):  
Manju Bala ◽  
Srashti Gupta ◽  
Sanjeev K. Srivastava ◽  
Sankarakumar Amrithapandian ◽  
Tripurari S. Tripathi ◽  
...  

We report that a nanostructured CoSb3 thin film in a single phase can be synthesized by ion beam processing of Co/Sb bilayer thin films with better thermoelectric properties.


2011 ◽  
Vol 520 (3) ◽  
pp. 1010-1014 ◽  
Author(s):  
Tino Jaeger ◽  
Christian Mix ◽  
Michael Schwall ◽  
Xeniya Kozina ◽  
Joachim Barth ◽  
...  

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2075
Author(s):  
Liangliang Yang ◽  
Jiangtao Wei ◽  
Yuanhao Qin ◽  
Lei Wei ◽  
Peishuai Song ◽  
...  

Thermoelectric technology can achieve mutual conversion between thermoelectricity and has the unique advantages of quiet operation, zero emissions and long life, all of which can help overcome the energy crisis. However, the large-scale application of thermoelectric technology is limited by its lower thermoelectric performance factor (ZT). The thermoelectric performance factor is a function of the Seebeck coefficient, electrical conductivity, thermal conductivity and absolute temperature. Since these parameters are interdependent, increasing the ZT value has always been a challenge. Here, we report the growth of Cu2Se thin films with a thickness of around 100 nm by magnetron sputtering. XRD and TEM analysis shows that the film is low-temperature α-Cu2Se, XPS analysis shows that about 10% of the film’s surface is oxidized, and the ratio of copper to selenium is 2.26:1. In the range of 300–400 K, the maximum conductivity of the film is 4.55 × 105 S m−1, which is the maximum value reached by the current Cu2Se film. The corresponding Seebeck coefficient is between 15 and 30 µV K−1, and the maximum ZT value is 0.073. This work systematically studies the characterization of thin films and the measurement of thermoelectric properties and lays the foundation for further research on nano-thin-film thermoelectrics.


2017 ◽  
Vol 901 ◽  
pp. 50-54
Author(s):  
Dedi ◽  
I Dewa Putu Hermida ◽  
Indah Primadona ◽  
Yang Yuan Chen

We present the thermoelectric properties of individual PbTe (lead telluride) nanowire (NW) grown by a stress induced method. Temperature-dependent thermoelectric power and electrical conductivity in PbTe NW with diameter 125 nm were investigated in temperature ranging of 300−400 K. The PbTe NW was found to have a Seebeck coeficient S and electrical conductivity σ of −121 μV K−1 and 138 S cm−1 at 300 K, respectively. The calculated power factor (PF) of PbTe NW (d = 125 nm) demonstrate an enhancement, wich is higher than that have been previously reported in PbTe NWs. Such an enhanced thermoelectric performance can in part be attributed to the size effect of nanowires.


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