Atomic-scale interfacial structure in rock salt and tetradymite chalcogenide thermoelectric materials

DL Medlin, GJ Snyder - Jom, 2013 - Springer
Interfaces play important roles in the performance of nanostructured thermoelectric
materials. However, our understanding of the atomic-scale structure of these interfaces is …

Topological doping effects in 2D chalcogenide thermoelectrics

C Dun, Y Liu, A Al-Qawasmeh, CA Hewitt, Y Guo… - 2D …, 2018 - iopscience.iop.org
The topological nature of two-dimensional (2D) chalcogenide platelets, can present novel
opportunities in thin, flexible thermoelectrics. In this work, metal dopants are added to the …

Thermoelectric and topological insulator bismuth chalcogenide thin films grown using pulsed laser deposition

PH Le, CW Luo - Applications of Laser Ablation—Thin Film …, 2016 - books.google.com
Bismuth chalcogenides have been intensively studied for their high-performance
thermoelectric properties and their novel topological surface states, which could significantly …

Interfacial disconnections at Sb2Te3 precipitates in PbTe: Mechanisms of strain accommodation and phase transformation at a tetradymite/rocksalt telluride interface

NA Heinz, T Ikeda, GJ Snyder, DL Medlin - Acta materialia, 2011 - Elsevier
Understanding the structure and formation mechanisms of interfaces between different
telluride phases is important to the development of thermoelectric nanocomposites. Here …

Structural dynamics and thermal transport in bismuth chalcogenide alloys

J Cen, I Pallikara, JM Skelton - Chemistry of Materials, 2021 - ACS Publications
We present a detailed study of the structural dynamics, energetic and dynamical stability,
and thermal transport of the bismuth chalcogenides Bi2S3, Bi2Se3, and Bi2Te3 and their …

Spin–lattice relaxation in bismuth chalcogenides

RE Taylor, B Leung, MP Lake… - The Journal of Physical …, 2012 - ACS Publications
Bismuth chalcogenides Bi2Se3 and Bi2Te3 are semiconductors that can be both
thermoelectric materials (TEs) and topological insulators (TIs). Lattice defects arising from …

Multiple Roles of Unconventional Heteroatom Dopants in Chalcogenide Thermoelectrics: The Influence of Nb on Transport and Defects in Bi2Te3

X Guo, C Zhang, Z Liu, P He, R Szczesny… - … Applied Materials & …, 2021 - ACS Publications
Improvements in the thermoelectric performance of n-type Bi2Te3 materials to more closely
match their p-type counterparts are critical to promote the continued development of bismuth …

Energetics and diffusion of gold in bismuth telluride-based thermoelectric compounds

MC Shaughnessy, NC Bartelt, JA Zimmerman… - Journal of Applied …, 2014 - pubs.aip.org
We investigate experimentally and theoretically the long-term chemical and morphological
stability of Au contacts on Bi 2 Te 3-based materials. Electron microscopy and energy …

Interfacial defect structure at Sb2Te3 precipitates in the thermoelectric compound AgSbTe2

DL Medlin, JD Sugar - Scripta Materialia, 2010 - Elsevier
We analyze a line defect at the interface between tetradymite-structured Sb2Te3 and
rocksalt-structured AgSbTe2 using high-resolution electron microscopy. By determining the …

In situ dynamics during heating of copper-intercalated bismuth telluride

PP Shetty, N Kondekar, AC Thenuwara, MG Boebinger… - Matter, 2020 - cell.com
The presence of a van der Waals gap within layered materials enables the intercalation of
guest species, which can be used for tuning properties. The introduction of intercalant …