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IR Reflectivity Studies of Mechanically Alloyed PbTe Nanocrystals

Published online by Cambridge University Press:  31 January 2011

Thomas Ch. Hasapis ,
Chrysi Papageorgiou ,
Euripides Hatzikraniotis ,
Theodora Kyratsi  and
Konstantinos M Paraskevopoulos
Thomas Ch. Hasapis
Affiliation:
thasa@physics.auth.gr, Aristotle University of Thessaloniki, Dept of Physics, Thessaloniki, Greece
Chrysi Papageorgiou
Affiliation:
mep7px1@ucy.ac.cy, University of Cyprus, Dept. of Mechanical and Manufacturing Engineering, Nicosia, Cyprus
Euripides Hatzikraniotis
Affiliation:
evris@physics.auth.gr, Aristotle University of Thessaloniki, Dept of Physics, Thessaloniki, Greece
Theodora Kyratsi
Affiliation:
kyratsi@ucy.ac.cy, University of Cyprus, Dept. of Mechanical and Manufacturing Engineering, Nicosia, Cyprus
Konstantinos M Paraskevopoulos
Affiliation:
kpar@auth.gr, Aristotle University of Thessaloniki, Dept of Physics, Thessaloniki, Greece
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Abstract

Nano-crystalline lead telluride powder was synthesized by mechanical alloying using a high-energy planetary ball mill. The broadening of the X-ray diffraction peaks vs ball milling time, indicates small crystalline size of the order of 30nm. IR spectroscopy results are discussed and compared to the material prepared from melt.

Keywords

thermoelectricmechanical alloyinginfrared (IR) spectroscopy
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1166: Symposium N – Materials and Devices for Thermal-to-Electric Energy Conversion , 2009 , 1166-N03-12
Copyright
Copyright © Materials Research Society 2009

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