Thermoelectric enhancement of different kinds of metal chalcogenides

C Han, Q Sun, Z Li, SX Dou - Advanced Energy Materials, 2016 - Wiley Online Library
Due to the urgency of our energy and environmental issues, a variety of cost‐effective and
pollution‐free technologies have attracted considerable attention, among which …

Cumulative defect structures for experimentally attainable low thermal conductivity in thermoelectric (Bi, Sb) 2Te3 alloys

KH Lee, YM Kim, CO Park, WH Shin, SW Kim… - Materials Today …, 2021 - Elsevier
Manipulation of thermal transport properties by defect engineering is an important but yet
unresolved issue in thermoelectrics, since rational design strategies of multiple defect …

Band engineering and tuning thermoelectric transport properties of p-type Bi0. 52Sb1. 48Te3 by Pb doping for low-temperature power generation

K Kim, G Kim, H Lee, KH Lee, W Lee - Scripta Materialia, 2018 - Elsevier
Herein, we report the results of a systematic study on the effect of Pb doping on the
thermoelectric transport properties of p-type BiSbTe alloys to validate its potential …

Effect of Substitutional Pb Doping on Bipolar and Lattice Thermal Conductivity in p-Type Bi0.48Sb1.52Te3

H Kim, KH Lee, J Yoo, J Youn, JW Roh, S Kim, SW Kim - Materials, 2017 - mdpi.com
Cation substitutional doping is an effective approach to modifying the electronic and thermal
transports in Bi2Te3-based thermoelectric alloys. Here we present a comprehensive …

Suppression of bipolar conduction via bandgap engineering for enhanced thermoelectric performance of p-type Bi0. 4Sb1. 6Te3 alloys

HS Kim, KH Lee, J Yoo, WH Shin, JW Roh… - Journal of Alloys and …, 2018 - Elsevier
Substitutional doping is known to be effective when used to enhance the thermoelectric
figure of merit zT, and this is generally explained as resulting from a reduction in the thermal …

Nanoparticles in Bi0. 5Sb1. 5Te3: A prerequisite defect structure to scatter the mid-wavelength phonons between Rayleigh and geometry scatterings

KH Lee, HS Kim, WH Shin, SY Kim, JH Lim, SW Kim… - Acta Materialia, 2020 - Elsevier
Nanoparticles in thermoelectric alloys has been considered as one of the most important
ingredients to enhance their thermoelectric figure of merit zT mainly by reducing the lattice …

Design and preparation of high-performance bulk thermoelectric materials with defect structures

KH Lee, SW Kim - Journal of the Korean Ceramic Society, 2017 - koreascience.kr
Thermoelectric is a key technology for energy harvesting and solid-state cooling by direct
thermal-to-electric energy conversion (or vice versa); however, the relatively low efficiency …

Isovalent sulfur substitution to induce a simultaneous increase in the effective mass and weighted mobility of a p-type Bi-Sb-Te alloy: an approach to enhance the …

KH Lee, HS Kim, M Kim, JW Roh, JH Lim, WJ Kim… - Acta Materialia, 2021 - Elsevier
Abstracts A significant obstacle to obtaining enhanced thermoelectric performance (defined
by a thermoelectric figure of merit, zT) in commercial p-type Bi-Sb-Te alloys is bipolar …

[HTML][HTML] Effect of Cu/In Doping on the thermoelectric transport properties of Bi-Sb-Te Alloys

HJ Cho, HS Kim, SI Kim - Korean Journal of Metals and Materials, 2019 - kjmm.org
Herein we report the effect of Cu/In doping on the electronic and thermal transport properties
of Bi-Sb-Te thermoelectric alloys. To closely examine the role of each doping element when …

Thermoelectric power factor of Bi-Sb-Te and Bi-Te-Se alloys and doping strategy: first-principles study

B Ryu, J Chung, EA Choi, BS Kim, SD Park - Journal of Alloys and …, 2017 - Elsevier
Abstract The Bi 2 Te 3-related binary compounds (Bi 2 Te 3, Sb 2 Te 3, Bi 2 Se 3, and Sb 2
Se 3) and ternary alloys [(Bi 1-x Sb x) 2 Te 3 (BST, 0≤ x≤ 1) and Bi 2 (Te 1-y Se y) 3 (BTSe …