摘要: Bi2Te3 is known for its large thermopower, a low thermal conductivity, and thereby thermoelectric figure of merit ZT at room temperature. Particularly, the conductivity attributed to high structural disorder. Electron probe microanalysis, transmission electron microscopy (TEM), energy dispersive x-ray spectrometry in TEM were applied on n-type Bi2(Te,Se)3 p-type (Bi,Sb)2Te3 bulk materials chemical analysis. Significant variations stoichiometry found micrometer scale. Bulk showed texture, grain sizes 1−10 μm, dislocations basal plane with density 109 cm−2 having mobility A modulation [natural nanostructure (nns)] was nanometer This nns also observed thin films Bi2Te3/Bi2(Te,Se)3 superlattices turned out be general character materials. The analyzed detail by stereomicroscopy image s...
scitation.org
core.ac.uk
mpg.de
harvard.edu
aip.org
sci-hub.se 参考文章(26)
William D Nix, Theory of Dislocations ,(1968)
N. Peranio, O. Eibl, Quantitative EDX microanalysis of Bi2Te3 in the TEM Physica Status Solidi (a). ,vol. 204, pp. 3243- 3255 ,(2007) , 10.1002/PSSA.200622579
Rama Venkatasubramanian, Lattice thermal conductivity reduction and phonon localizationlike behavior in superlattice structures Physical Review B. ,vol. 61, pp. 3091- 3097 ,(2000) , 10.1103/PHYSREVB.61.3091
M. Kaiser, L. van Pieterson, M. A. Verheijen, In situtransmission electron microscopy analysis of electron beam induced crystallization of amorphous marks in phase-change materials Journal of Applied Physics. ,vol. 96, pp. 3193- 3198 ,(2004) , 10.1063/1.1775297
P. A. Walker, The Thermal Conductivity and Thermoelectric Power of Bismuth Telluride at Low Temperatures Proceedings of the Physical Society. ,vol. 76, pp. 113- 126 ,(1960) , 10.1088/0370-1328/76/1/314
P. Delaviginette, S. Amelinckx, Dislocation nets in bismuth and antimony tellurides Philosophical Magazine. ,vol. 5, pp. 729- 744 ,(1960) , 10.1080/14786436008235871
Kuei Fang Hsu, Sim Loo, Fu Guo, Wei Chen, Jeffrey S Dyck, Ctirad Uher, Tim Hogan, EK Polychroniadis, Mercouri G Kanatzidis, Cubic AgPbmSbTe2+m: Bulk Thermoelectric Materials with High Figure of Merit Science. ,vol. 303, pp. 818- 821 ,(2004) , 10.1126/SCIENCE.1092963
O Pagès, Y Feutelais, J.R Didry, G Keller, H Jacquemin, B Legendre, Phase change optical recording films based on Bi2Te3–Sb2Te3 alloys Materials Research Bulletin. ,vol. 34, pp. 1065- 1077 ,(1999) , 10.1016/S0025-5408(99)00097-5
L. van Pieterson, M. H. R. Lankhorst, M. van Schijndel, A. E. T. Kuiper, J. H. J. Roosen, Phase-change recording materials with a growth-dominated crystallization mechanism: A materials overview Journal of Applied Physics. ,vol. 97, pp. 083520- ,(2005) , 10.1063/1.1868860
Rama Venkatasubramanian, Thomas Colpitts, Brooks O’Quinn, Sandra Liu, Nadia El-Masry, Michael Lamvik, Low-temperature organometallic epitaxy and its application to superlattice structures in thermoelectrics Applied Physics Letters. ,vol. 75, pp. 1104- 1106 ,(1999) , 10.1063/1.124610