Phases and thermoelectric properties of SnTe with (Ge, Mn) co-doping
Literature Information
J. Q. Li, S. Huang, Z. P. Chen, Y. Li, S. H. Song, F. S. Liu, W. Q. Ao
A lead-free SnTe compound shows good electrical properties but also high thermal conductivity, resulting in a low figure of merit ZT. We demonstrate a significant enhancement of the thermoelectric properties of SnTe by (Ge, Mn) co-doping. (Ge, Mn) co-doped samples (Sn0.8Ge0.2)1−xMnxTe with x = 0, 0.03, 0.06, 0.09, 0.12, 0.15, 0.18 and 0.2 were prepared for this investigation. The substitution of Ge for Sn in SnTe promotes the solubility of Mn in a SnTe-based phase up to 20 at%, which further enlarges the band gap and gives rise to enhanced valence band convergence as compared with Mn doping, leading to a notably increased Seebeck coefficient and a power factor. All alloys retain p-type conduction and hole carrier concentration increases with increasing Mn content. The solute Ge and Mn atoms as well as the second phase of Ge in a SnTe-based system enhance phonon scattering and thus reduce thermal conductivity. The synergistic role that Ge and Mn play in regulating the electron and phonon transport of SnTe yields a maximum figure of merit ZT of 1.22 at 873 K for the sample (Sn0.8Ge0.2)0.85Mn0.15Te.
Related Literature
Rational design of a carbon/potassium poly(heptazine imide) heterojunction for enhanced photocatalytic H2 and H2O2 evolution
Christian Mark Pelicano, Jiaxin Li, María Cabrero-Antonino, Ingrid F. Silva, Lu Peng, Nadezda V. Tarakina, Sergio Navalón, Hermenegildo García, Markus Antonietti
DOI: 10.1039/D3TA05701A
Temperature and pressure induced structural transitions of lead iodide perovskites
Pratap Vishnoi, C. N. R. Rao
DOI: 10.1039/D3TA05315F
Computational insight into effective decomposition of NOX gas pollutants using N-vacancies in graphitic carbon nitride
Yuewen Yang, Yanling Zhao
DOI: 10.1039/D3TA05872G
Thiol–yne click chemistry on carbon nanotubes for mediated bioelectrocatalytic glucose oxidation
Monica Brachi, Fabien Giroud, Alan Le Goff
DOI: 10.1039/D3TA05412H
Exploring finite-temperature electronic transport in CoSi alloys with transition metals (Cr, Mn, Fe, and Ni) using the KKR-CPA method
Ho Ngoc Nam, Katsuhiro Suzuki
DOI: 10.1039/D3TA06259G
Perylene-diimide for organic solar cells: current scenario and prospects in molecular geometric, functionalization, and optoelectronic properties
Pachaiyappan Murugan, Ezhakudiayan Ravindran, Vajjiram Sangeetha, Shi-Yong Liu
DOI: 10.1039/D3TA04925F
Adsorptive separation of saccharides and polyols over materials functionalized with boronate groups
Irina Delidovich, Valérie Toussaint
DOI: 10.1039/D3GC04049F
Hexagonal 2D covalent organic frameworks from nonpolar and symmetric electron-accepting substituents for electron transport layers in near-infrared PeLEDs
Lili Xu, Lei Zheng, Yu Jing, Xiangyu Guo, Xuemin Hu, Bo Xu, Shengli Zhang
DOI: 10.1039/D3TA05200A
A new selection criterion for voltage windows of aqueous zinc ion hybrid capacitors: achieving a balance between energy density and cycle stability
Fanda Zeng, Xiliang Gong, Zijin Xu, Zhengyan Du, Jian Xu, Ting Deng, Dong Wang, Yi Zeng, Shansheng Yu, Zeshuo Meng, Xiaoying Hu, Hongwei Tian
DOI: 10.1039/D3TA05838G
High-value utilization of lignin: construction of an intelligent release system for targeting the delivery of pesticides
Yitong Wang, Xiaona Yu, Shuaishuai Ma, Shuling Cao, Xufeng Yuan
DOI: 10.1039/D3GC03434H
You might also like
How should waste containing 2-Ethyl-4-Methyl-1H-Imidazole-5-Carbaldehyde (CAS: 88634-80-4) be handled?
Waste containing 2-Ethyl-4-Methyl-1H-Imidazole-5-Carbaldehyde (CAS: 88634-80-4) ...
What industries use Triethoxy(octyl)silane (CAS: 1385031-14-0)?
Triethoxy(octyl)silane (CAS: 1385031-14-0) is widely used in the pharmaceuticals...
Are there alternatives to 3-iodo-7-nitro-1H-indazole (CAS: 864724-64-1) in synthesis?
Several alternatives to 3-iodo-7-nitro-1H-indazole (CAS: 864724-64-1) exist in t...
Are there alternatives to Benzene, bis[(trimethoxysilyl)ethyl] (CAS: 266317-71-9) in synthesis?
Yes, there are alternatives to Benzene, bis[(trimethoxysilyl)ethyl] (CAS: 266317...
Is Isothiazole-3-carbonitrile (CAS: 1452-17-1) safe?
Isothiazole-3-carbonitrile (CAS: 1452-17-1) is generally considered safe when us...
Is (3-Chlorophenyl)methanol (CAS: 873-63-2) safe?
(3-Chlorophenyl)methanol (CAS: 873-63-2) is considered low to moderately toxic. ...
How is (2S,3S)-2-Hydroxy-3-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)-3-(2-naphthyl)propanoic acid (CAS: 959583-98-3) typically synthesized?
(2S,3S)-2-Hydroxy-3-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)-3-(2-naphthyl)pr...
What precautions should be taken when handling Methyl 2-(bromomethyl)-5-methoxybenzoate (CAS: 788081-99-2)?
Proper handling of methyl 2-(bromomethyl)-5-methoxybenzoate requires the use of ...
What is 6,8-Dibromoimidazo[1,2-a]pyridine-2-carboxylic acid (CAS: 904805-36-3)?
6,8-Dibromoimidazo[1,2-a]pyridine-2-carboxylic acid (CAS: 904805-36-3) is an aro...
Is 3-Amino-5-bromo-2-pyridinecarbonitrile (CAS: 573675-27-1) safe?
3-Amino-5-bromo-2-pyridinecarbonitrile is considered safe when handled under pro...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














