Self-assembled nanometer lamellae of thermoelectric PbTe and Sb 2Tc3 with epitaxy-like interfaces

Teruyuki Ikeda; Lauren A. Collins; Vilupanur A. Ravi; Franck S. Gascoin; Sossina M. Haile; G. Jeffrey Snyder

doi:10.1021/cm062121p

Self-assembled nanometer lamellae of thermoelectric PbTe and Sb ₂Tc₃ with epitaxy-like interfaces

Teruyuki Ikeda, Lauren A. Collins, Vilupanur A. Ravi, Franck S. Gascoin, Sossina M. Haile, G. Jeffrey Snyder^*

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

149 Scopus citations

Abstract

Utilizing the decomposition of metastable Pb₂Sb ₆Te₁₁ into PbTe and Sb₂Te₃, we produced a layered (lamellar) microstructure of PbTe and Sb₂Te ₃ in which the interlamellar spacing can be controlled by the temperature and time of the decomposition process. Adjacent PbTe and Sb ₂Te₃ lamellae are crystallo-graphically oriented, indicating high-quality epitaxy-like interfaces. Average lamellar spacings as small as 180 nm are observed, corresponding to a PbTe layer thickness of 40 nm. These nanoscale multilayers, formed by bulk processing, resemble thin-film superlattice thermoelectric materials, which have shown exceptionally high thermoelectric efficiency.

Original language	English (US)
Pages (from-to)	763-767
Number of pages	5
Journal	Chemistry of Materials
Volume	19
Issue number	4
DOIs	https://doi.org/10.1021/cm062121p
State	Published - Feb 20 2007

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Materials Chemistry

Access to Document

10.1021/cm062121p

Cite this

@article{f5c4732725874e92a4b33133b055a7c8,

title = "Self-assembled nanometer lamellae of thermoelectric PbTe and Sb 2Tc3 with epitaxy-like interfaces",

abstract = "Utilizing the decomposition of metastable Pb2Sb 6Te11 into PbTe and Sb2Te3, we produced a layered (lamellar) microstructure of PbTe and Sb2Te 3 in which the interlamellar spacing can be controlled by the temperature and time of the decomposition process. Adjacent PbTe and Sb 2Te3 lamellae are crystallo-graphically oriented, indicating high-quality epitaxy-like interfaces. Average lamellar spacings as small as 180 nm are observed, corresponding to a PbTe layer thickness of 40 nm. These nanoscale multilayers, formed by bulk processing, resemble thin-film superlattice thermoelectric materials, which have shown exceptionally high thermoelectric efficiency.",

author = "Teruyuki Ikeda and Collins, {Lauren A.} and Ravi, {Vilupanur A.} and Gascoin, {Franck S.} and Haile, {Sossina M.} and Snyder, {G. Jeffrey}",

year = "2007",

month = feb,

day = "20",

doi = "10.1021/cm062121p",

language = "English (US)",

volume = "19",

pages = "763--767",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "American Chemical Society",

number = "4",

}

TY - JOUR

T1 - Self-assembled nanometer lamellae of thermoelectric PbTe and Sb 2Tc3 with epitaxy-like interfaces

AU - Ikeda, Teruyuki

AU - Collins, Lauren A.

AU - Ravi, Vilupanur A.

AU - Gascoin, Franck S.

AU - Haile, Sossina M.

AU - Snyder, G. Jeffrey

PY - 2007/2/20

Y1 - 2007/2/20

N2 - Utilizing the decomposition of metastable Pb2Sb 6Te11 into PbTe and Sb2Te3, we produced a layered (lamellar) microstructure of PbTe and Sb2Te 3 in which the interlamellar spacing can be controlled by the temperature and time of the decomposition process. Adjacent PbTe and Sb 2Te3 lamellae are crystallo-graphically oriented, indicating high-quality epitaxy-like interfaces. Average lamellar spacings as small as 180 nm are observed, corresponding to a PbTe layer thickness of 40 nm. These nanoscale multilayers, formed by bulk processing, resemble thin-film superlattice thermoelectric materials, which have shown exceptionally high thermoelectric efficiency.

AB - Utilizing the decomposition of metastable Pb2Sb 6Te11 into PbTe and Sb2Te3, we produced a layered (lamellar) microstructure of PbTe and Sb2Te 3 in which the interlamellar spacing can be controlled by the temperature and time of the decomposition process. Adjacent PbTe and Sb 2Te3 lamellae are crystallo-graphically oriented, indicating high-quality epitaxy-like interfaces. Average lamellar spacings as small as 180 nm are observed, corresponding to a PbTe layer thickness of 40 nm. These nanoscale multilayers, formed by bulk processing, resemble thin-film superlattice thermoelectric materials, which have shown exceptionally high thermoelectric efficiency.

UR - http://www.scopus.com/inward/record.url?scp=33947113376&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33947113376&partnerID=8YFLogxK

U2 - 10.1021/cm062121p

DO - 10.1021/cm062121p

M3 - Article

AN - SCOPUS:33947113376

SN - 0897-4756

VL - 19

SP - 763

EP - 767

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 4

ER -

Self-assembled nanometer lamellae of thermoelectric PbTe and Sb ₂Tc₃ with epitaxy-like interfaces

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this