Decorated dislocations lead to dynamically optimized thermoelectric performance in N-type PbTe

ZY Huang, F Wang, C Jung, S Zhang, F Zu… - Materials Today …, 2023 - Elsevier
A high thermoelectric energy conversion efficiency requires a large power factor and a low
thermal conductivity over a broad temperature range. Optimizing the temperature-dependent …

Lattice dislocations enhancing thermoelectric PbTe in addition to band convergence

Z Chen, Z Jian, W Li, Y Chang, B Ge… - Advanced …, 2017 - Wiley Online Library
Phonon scattering by nanostructures and point defects has become the primary strategy for
minimizing the lattice thermal conductivity (κL) in thermoelectric materials. However, these …

Dynamic doping and Cottrell atmosphere optimize the thermoelectric performance of n-type PbTe over a broad temperature interval

Y Yu, C Zhou, X Zhang, L Abdellaoui, C Doberstein… - Nano Energy, 2022 - Elsevier
High thermoelectric energy conversion efficiency requires a large figure-of-merit, zT, over a
broad temperature range. To achieve this, we optimize the carrier concentrations of n-type …

Regulating Te Vacancies through Dopant Balancing via Excess Ag Enables Rebounding Power Factor and High Thermoelectric Performance in p‐Type PbTe

H Jang, JH Park, HS Lee, B Ryu, SD Park… - Advanced …, 2021 - Wiley Online Library
Thermoelectric properties are frequently manipulated by introducing point defects into a
matrix. However, these properties often change in unfavorable directions owing to the …

Fine tuning of defects enables high carrier mobility and enhanced thermoelectric performance of n-type PbTe

S Wang, C Chang, S Bai, B Qin, Y Zhu… - Chemistry of …, 2023 - ACS Publications
High carrier mobility is critical to improving thermoelectric performance over a broad
temperature range. However, traditional doping inevitably deteriorates carrier mobility …

Parallel dislocation networks and cottrell atmospheres reduce thermal conductivity of PbTe thermoelectrics

L Abdellaoui, Z Chen, Y Yu, T Luo… - Advanced Functional …, 2021 - Wiley Online Library
Dislocations play an important role in thermal transport by scattering phonons. Nevertheless,
for materials with intrinsically low thermal conductivity, such as thermoelectrics, classical …

Substitutions and dislocations enabled extraordinary n-type thermoelectric PbTe

C Qin, L Cheng, Y Xiao, C Wen, B Ge, W Li… - Materials Today Physics, 2021 - Elsevier
Substitutional point defects of aliovalent enable a significant manipulation in carrier
concentration thus optimize the charge transport for an enhanced thermoelectric power …

Subtle roles of Sb and S in regulating the thermoelectric properties of n‐type PbTe to high performance

G Tan, CC Stoumpos, S Wang… - Advanced Energy …, 2017 - Wiley Online Library
A high ZT (thermoelectric figure of merit) of≈ 1.4 at 900 K for n‐type PbTe is reported,
through modifying its electrical and thermal properties by incorporating Sb and S …

Phase boundary mapping and suppressing Pb vacancies for enhanced thermoelectric properties in n-type Sb doped PbTe compounds

C Wang, X Zhao, S Ning, Q Tao, Y Tang, Z Chen… - Materials Today …, 2022 - Elsevier
Herein, the influence of Sb dopant on the thermoelectric properties of PbTe compound was
systematically investigated by using a phase boundary method. Along different directions …

From Dislocation to Nano‐Precipitation: Evolution to Low Thermal Conductivity and High Thermoelectric Performance in n‐Type PbTe

PY Deng, KK Wang, JY Du… - Advanced Functional …, 2020 - Wiley Online Library
PbTe‐based alloys have been widely used as mid‐temperature thermoelectric (TE)
materials since the 1960s. Years of endeavor spurred the tremendous advances in their TE …