Macro and Micro-Scale Features of Thermoelectric PbTe (Br, Na) Systems: Micro-FTIR Spectroscopy, Micro-Seebeck Measurements, and SEM/EDX Observations
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2014
Authors
Stefanaki, E. C.Polymeris, G. S.
Nikolić, Pantelija M.
Papageorgiou, Ch.
Pavlidou, Eleni
Hatzikraniotis, E.
Kyratsi,, Th.
Paraskevopoulos, Konstantinos M.
Article (Published version)
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In this work, n-type and p-type PbTe doped with Br and Na, respectively, were thoroughly examined to determine the effect of the dopant on microstructure. Macro and micro homogeneity of the samples were studied by means of micro-Fourier-transform infrared (micro-FTIR) spectroscopy, micro-Seebeck measurements, and scanning electron microscopy with energy-dispersive x-ray analysis (SEM/EDX). SEM/EDX observations showed the samples were not single-phase materials—second phases were created by inclusions that disturbed the coherence of the matrix and, subsequently, drastically affected the Seebeck coefficient. In a micro-scale study, local variations of sodium content were detected in Na-doped samples; in Br-doped samples a second, PbBr2, phase was observed in the PbTe matrix. A direct effect of matrix dopant on Seebeck coefficient and plasmon frequency for the Br-doped and Na-doped samples was observed by use of the three complementary techniques.
Keywords:
PbTe doped with Br and Na / microstructure / FTIR / micro-Seebeck measurements / SEMSource:
Journal of Electronic Materials, 2014, 43, 10, 3785-3791Publisher:
- Springer
DOI: 10.1007/s11664-014-3163-9
ISSN: 0361-5235 (Print); 1543-186X
WoS: 000341878400011
Scopus: 2-s2.0-84920256012
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Stefanaki, E. C. AU - Polymeris, G. S. AU - Nikolić, Pantelija M. AU - Papageorgiou, Ch. AU - Pavlidou, Eleni AU - Hatzikraniotis, E. AU - Kyratsi,, Th. AU - Paraskevopoulos, Konstantinos M. PY - 2014 UR - https://dais.sanu.ac.rs/123456789/573 AB - In this work, n-type and p-type PbTe doped with Br and Na, respectively, were thoroughly examined to determine the effect of the dopant on microstructure. Macro and micro homogeneity of the samples were studied by means of micro-Fourier-transform infrared (micro-FTIR) spectroscopy, micro-Seebeck measurements, and scanning electron microscopy with energy-dispersive x-ray analysis (SEM/EDX). SEM/EDX observations showed the samples were not single-phase materials—second phases were created by inclusions that disturbed the coherence of the matrix and, subsequently, drastically affected the Seebeck coefficient. In a micro-scale study, local variations of sodium content were detected in Na-doped samples; in Br-doped samples a second, PbBr2, phase was observed in the PbTe matrix. A direct effect of matrix dopant on Seebeck coefficient and plasmon frequency for the Br-doped and Na-doped samples was observed by use of the three complementary techniques. PB - Springer T2 - Journal of Electronic Materials T1 - Macro and Micro-Scale Features of Thermoelectric PbTe (Br, Na) Systems: Micro-FTIR Spectroscopy, Micro-Seebeck Measurements, and SEM/EDX Observations SP - 3785 EP - 3791 VL - 43 IS - 10 DO - 10.1007/s11664-014-3163-9 UR - https://hdl.handle.net/21.15107/rcub_dais_573 ER -
@article{ author = "Stefanaki, E. C. and Polymeris, G. S. and Nikolić, Pantelija M. and Papageorgiou, Ch. and Pavlidou, Eleni and Hatzikraniotis, E. and Kyratsi,, Th. and Paraskevopoulos, Konstantinos M.", year = "2014", abstract = "In this work, n-type and p-type PbTe doped with Br and Na, respectively, were thoroughly examined to determine the effect of the dopant on microstructure. Macro and micro homogeneity of the samples were studied by means of micro-Fourier-transform infrared (micro-FTIR) spectroscopy, micro-Seebeck measurements, and scanning electron microscopy with energy-dispersive x-ray analysis (SEM/EDX). SEM/EDX observations showed the samples were not single-phase materials—second phases were created by inclusions that disturbed the coherence of the matrix and, subsequently, drastically affected the Seebeck coefficient. In a micro-scale study, local variations of sodium content were detected in Na-doped samples; in Br-doped samples a second, PbBr2, phase was observed in the PbTe matrix. A direct effect of matrix dopant on Seebeck coefficient and plasmon frequency for the Br-doped and Na-doped samples was observed by use of the three complementary techniques.", publisher = "Springer", journal = "Journal of Electronic Materials", title = "Macro and Micro-Scale Features of Thermoelectric PbTe (Br, Na) Systems: Micro-FTIR Spectroscopy, Micro-Seebeck Measurements, and SEM/EDX Observations", pages = "3785-3791", volume = "43", number = "10", doi = "10.1007/s11664-014-3163-9", url = "https://hdl.handle.net/21.15107/rcub_dais_573" }
Stefanaki, E. C., Polymeris, G. S., Nikolić, P. M., Papageorgiou, Ch., Pavlidou, E., Hatzikraniotis, E., Kyratsi, ,. Th.,& Paraskevopoulos, K. M.. (2014). Macro and Micro-Scale Features of Thermoelectric PbTe (Br, Na) Systems: Micro-FTIR Spectroscopy, Micro-Seebeck Measurements, and SEM/EDX Observations. in Journal of Electronic Materials Springer., 43(10), 3785-3791. https://doi.org/10.1007/s11664-014-3163-9 https://hdl.handle.net/21.15107/rcub_dais_573
Stefanaki EC, Polymeris GS, Nikolić PM, Papageorgiou C, Pavlidou E, Hatzikraniotis E, Kyratsi ,T, Paraskevopoulos KM. Macro and Micro-Scale Features of Thermoelectric PbTe (Br, Na) Systems: Micro-FTIR Spectroscopy, Micro-Seebeck Measurements, and SEM/EDX Observations. in Journal of Electronic Materials. 2014;43(10):3785-3791. doi:10.1007/s11664-014-3163-9 https://hdl.handle.net/21.15107/rcub_dais_573 .
Stefanaki, E. C., Polymeris, G. S., Nikolić, Pantelija M., Papageorgiou, Ch., Pavlidou, Eleni, Hatzikraniotis, E., Kyratsi,, Th., Paraskevopoulos, Konstantinos M., "Macro and Micro-Scale Features of Thermoelectric PbTe (Br, Na) Systems: Micro-FTIR Spectroscopy, Micro-Seebeck Measurements, and SEM/EDX Observations" in Journal of Electronic Materials, 43, no. 10 (2014):3785-3791, https://doi.org/10.1007/s11664-014-3163-9 ., https://hdl.handle.net/21.15107/rcub_dais_573 .