Modulating the valence of Ga and the deep level impurity for high thermoelectric performance of n-type Pb0. 98Ga0. 02Te1-xSex compounds
It has been found that the doped Ga has a distinct role in PbTe and PbSe compounds
though they possess the same crystal structure. Therefore, to understand how the …
though they possess the same crystal structure. Therefore, to understand how the …
Synergistic tuning of carrier mobility, effective mass, and point defects scattering triggered high thermoelectric performance in n-type Ge-doped PbTe
Most achievements on remarkable thermoelectric performance have been made in the
intermediate-temperature p-type PbTe. However, the n-type PbTe exhibits a relatively poor …
intermediate-temperature p-type PbTe. However, the n-type PbTe exhibits a relatively poor …
Weak Electron Phonon Coupling and Deep Level Impurity for High Thermoelectric Performance Pb1−xGaxTe
Abstract High ZT of 1.34 at 766 K and a record high average ZT above 1 in the temperature
range of 300‐864 K are attained in n‐type PbTe by engineering the temperature‐dependent …
range of 300‐864 K are attained in n‐type PbTe by engineering the temperature‐dependent …
Enhanced Solubility of Ga and Deep Defect Level Lead to High Thermoelectric Performance of n-Type Pb1–xGaxTe0.995I0.005 Alloys
Y Zong, Y Wang, J Zhai, W Su, C Tan, Z Li… - The Journal of …, 2024 - ACS Publications
By virtue of temperature differences, which are in hundreds of k elvin, the optimized carrier
concentration may vary within an order of magnitude. Ga has shown potential in providing …
concentration may vary within an order of magnitude. Ga has shown potential in providing …
Manipulating Pb Vacancies Achieved Ultra‐High Thermoelectrics in Quaternary Pb0.95Na0.04Te1‐xSex via Fine‐Tuning Se Solubility
X Zhao, B Fu, R Ang - Advanced Functional Materials, 2024 - Wiley Online Library
Optimizing carrier concentration in PbTe materials can be achieved effectively through the
chemical doping of sodium. Nevertheless, the valence balance can lead to the presence of …
chemical doping of sodium. Nevertheless, the valence balance can lead to the presence of …
High Figure of Merit in Gallium-Doped Nanostructured n-Type PbTe-xGeTe with Midgap States
PbTe-based thermoelectric materials are some of the most promising for converting heat into
electricity, but their n-type versions still lag in performance the p-type ones. Here, we …
electricity, but their n-type versions still lag in performance the p-type ones. Here, we …
Extraordinary role of Zn in enhancing thermoelectric performance of Ga-doped n-type PbTe
Although Ga doping can weaken the electron phonon coupling in n-type PbTe, Ga-doped
PbTe has a relatively low carrier concentration (n) and high lattice thermal conductivity (κlat) …
PbTe has a relatively low carrier concentration (n) and high lattice thermal conductivity (κlat) …
[HTML][HTML] Enhanced thermoelectric performance of PbTe bulk materials with figure of merit zT> 2 by multi-functional alloying
Forming solid solutions in PbTe based materials can simultaneously reduce lattice thermal
conductivity and engineer the band structure to enhance the electrical properties. In this …
conductivity and engineer the band structure to enhance the electrical properties. In this …
Synergistically optimizing carrier and phonon transport properties in n-type PbTe through I doping and SnSe alloying
PbTe is a promising thermoelectric material, but the properties in n-type PbTe need further
improvement to match its advanced p-type material. In this work, the thermoelectric …
improvement to match its advanced p-type material. In this work, the thermoelectric …
High-performance thermoelectrics of p-type PbTe via synergistic regulation of band and microstructure engineering
F Lv, Y Zhong, X Zhao, X An, L Lin, D Ren, B Liu… - Materials Today …, 2023 - Elsevier
The strong correlation between Seebeck coefficient and electrical conductivity is a main
bottleneck in enhancing the performance of thermoelectric materials. It indicates that optimal …
bottleneck in enhancing the performance of thermoelectric materials. It indicates that optimal …