Optimizing the thermoelectric performance of n-type PbSe through dynamic doping driven by entropy engineering

S Wu, C Li, F Chen, K Yang, C Hu, H Huang… - Journal of Materials …, 2024 - pubs.rsc.org
As an ideal candidate for PbTe, which maintains excellent performance at mid-temperature,
PbSe holds great application potential. In this work, based on an optimized dynamic doping …

Defect Reconfiguration in Hole-Doped PbSe via Minute Te Doping for Significantly Enhanced Thermoelectric Performance

J Sun, W Cui, C Xie, T Yu, F Yan, Z Chen… - ACS Applied Energy …, 2023 - ACS Publications
Rich defects near the percolation threshold of dilute solid solutions are of fundamental
interest to thermoelectric research. Sn-substituted Pb0. 98Na0. 02Se (1 mol%) is a typical …

Defect engineering for high-performance n-type PbSe thermoelectrics

C Zhou, YK Lee, J Cha, B Yoo, SP Cho… - Journal of the …, 2018 - ACS Publications
Introducing structural defects such as vacancies, nanoprecipitates, and dislocations is a
proven means of reducing lattice thermal conductivity. However, these defects tend to be …

Dense dislocations enable high-performance PbSe thermoelectric at low-medium temperatures

L Xu, Y Xiao, S Wang, B Cui, D Wu, X Ding… - Nature …, 2022 - nature.com
PbSe-based thermoelectric materials exhibit promising ZT values at medium temperature,
but its near-room-temperature thermoelectric properties are overlooked, thus restricting its …

High-Performance n-Type PbSe–Cu2Se Thermoelectrics through Conduction Band Engineering and Phonon Softening

C Zhou, Y Yu, YK Lee, O Cojocaru-Mirédin… - Journal of the …, 2018 - ACS Publications
From a structural and economic perspective, tellurium-free PbSe can be an attractive
alternative to its more expensive isostructural analogue of PbTe for intermediate …

High thermoelectric performance of PbSe via a synergistic band engineering and dislocation approach

D Zhang, P He, G Liu, R Zhong, F Xu, J Yang, Y Luo… - Scripta Materialia, 2024 - Elsevier
As an attractive tellurium-free thermoelectric material, PbSe-based materials have been
intensively studied for intermediate temperature power generation. Here we show that a …

Realizing Ultrahigh Thermoelectric Performance in n‐Type PbSe Through Lattice Planification and Introducing Liquid‐Like Cu Ions

H Pang, Y Qin, B Qin, L Yu, X Su… - Advanced Functional …, 2024 - Wiley Online Library
The coupling relationship between electrical and thermal transports makes it rather
challenging to enhance thermoelectric performance. Here, electrical and thermal transports …

Defect chemistry engineering promotes the dopability of Cu for an extraordinary thermoelectric performance of hole-doped PbSe with resonant states

J Sun, C Xie, W Cui, F Yan, J Li, J Zhang… - Chemistry of …, 2023 - ACS Publications
Cu substitution for Pb (CuPb) has been theoretically predicted to introduce resonant states
near the valence band edge of PbSe. However, experimentally, it has not been verified yet …

Enhancing thermoelectric performance of p-type PbSe through suppressing electronic thermal transports

Z Huang, Y Zhang, H Wu, SJ Pennycook… - ACS Applied Energy …, 2019 - ACS Publications
To date, thermoelectric performance has been enhanced through improving the power factor
and/or reducing the lattice thermal conductivity. Here, we report an effective method of …

Complex lattice occupation of copper leading to enhanced thermoelectric performance in n-type PbSe

Y Shi, M He, M Cui, W Wang, B Ma, F Zhang… - Journal of Materials …, 2024 - pubs.rsc.org
Among mid-temperature thermoelectric materials, PbSe is deemed as a natural replacement
of PbTe owing to the much larger abundance of selenium than tellurium. Usually, extra Cu …