Synthesis and structure of undoped and indium-doped thermoelectric lead telluride nanoparticles
Journal Article
·
· Nanoscale Research Letters (Online)
- Florida International Univ., Miami, FL (United States). Dept. of Physics; DOE/OSTI
- Florida International Univ., Miami, FL (United States). Dept. of Physics
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Undoped and indium (In)-doped lead telluride (PbTe) nanostructures were synthesized via solvothermal/hydrothermal route. The crystalline structure of the as-prepared undoped and In-doped PbTe samples was examined by X-ray diffraction (XRD) which indicated the formation of face-centered single-phase cubic crystal. A first principle calculation on indium doping shows that the indium atoms are more likely to replace lead (Pb) rather than to take the interstitial sites. Laser-induced breakdown spectroscopy (LIBS) analysis confirms that indium is incorporated into the PbTe matrix of the indium-doped PbTe samples. The effects of surfactant and synthesis temperature on the structure and morphology of the undoped PbTe were also investigated; it was found that PbTe nanostructures synthesized with the addition of surfactants exhibited uniform shapes and their size increased with the synthesis temperature.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States). Center for Integrated Nanotechnologies (CINT)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- NA0003525
- OSTI ID:
- 1626587
- Journal Information:
- Nanoscale Research Letters (Online), Journal Name: Nanoscale Research Letters (Online) Journal Issue: 1 Vol. 9; ISSN 1556-276X
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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