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Zeng Z, Shen X, Cheng R, Perez O, Ouyang N, Fan Z, Lemoine P, Raveau B, Guilmeau E, Chen Y. Pushing thermal conductivity to its lower limit in crystals with simple structures. Nat Commun 2024; 15:3007. [PMID: 38589376 PMCID: PMC11001610 DOI: 10.1038/s41467-024-46799-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 03/11/2024] [Indexed: 04/10/2024] Open
Abstract
Materials with low thermal conductivity usually have complex crystal structures. Herein we experimentally find that a simple crystal structure material AgTlI2 (I4/mcm) owns an extremely low thermal conductivity of 0.25 W/mK at room temperature. To understand this anomaly, we perform in-depth theoretical studies based on ab initio molecular dynamics simulations and anharmonic lattice dynamics. We find that the unique atomic arrangement and weak chemical bonding provide a permissive environment for strong oscillations of Ag atoms, leading to a considerable rattling behaviour and giant lattice anharmonicity. This feature is also verified by the experimental probability density function refinement of single-crystal diffraction. The particularly strong anharmonicity breaks down the conventional phonon gas model, giving rise to non-negligible wavelike phonon behaviours in AgTlI2 at 300 K. Intriguingly, unlike many strongly anharmonic materials where a small propagative thermal conductivity is often accompanied by a large diffusive thermal conductivity, we find an unusual coexistence of ultralow propagative and diffusive thermal conductivities in AgTlI2 based on the thermal transport unified theory. This study underscores the potential of simple crystal structures in achieving low thermal conductivity and encourages further experimental research to enrich the family of materials with ultralow thermal conductivity.
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Affiliation(s)
- Zezhu Zeng
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China.
- The Institute of Science and Technology Austria, Am Campus 1, Klosterneuburg, Austria.
| | - Xingchen Shen
- CRISMAT, CNRS, Normandie Univ, ENSICAEN, UNICAEN, Caen, France
| | - Ruihuan Cheng
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Olivier Perez
- CRISMAT, CNRS, Normandie Univ, ENSICAEN, UNICAEN, Caen, France
| | - Niuchang Ouyang
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Zheyong Fan
- College of Physical Science and Technology, Bohai University, Jinzhou, China
| | - Pierric Lemoine
- Institut Jean Lamour, UMR 7198 CNRS - Université de Lorraine, Nancy, France
| | - Bernard Raveau
- CRISMAT, CNRS, Normandie Univ, ENSICAEN, UNICAEN, Caen, France
| | | | - Yue Chen
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China.
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2
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Jana S, Yadav S, Swati, Niranjan MK, Prakash J. Ba 14Si 4Sb 8Te 32(Te 3): hypervalent Te in a new structure type with low thermal conductivity. Dalton Trans 2023; 52:15426-15439. [PMID: 37376920 DOI: 10.1039/d3dt01532g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Heavier pnictogen (Sb, Bi) containing chalcogenides are well known for their complex structures and semiconducting properties for numerous applications, particularly thermoelectric materials. Here, we report the syntheses of single crystals and polycrystalline phases of a new complex quaternary polytelluride, Ba14Si4Sb8Te32(Te3), via a high-temperature reaction of elements. A single-crystal X-ray diffraction study showed that it crystallizes in an unprecedented structure type with monoclinic symmetry (space group: P21/c). The crystal structure of Ba14Si4Sb8Te32(Te3) consists of one-dimensional ∞1[Si4Sb8Te32(Te3)]28- stripes, which are separated by the Ba2+ cations. Its complex structure features linear polytelluride units of Te34- having intermediate Te⋯Te interactions. A polycrystalline Ba14Si4Sb8Te32(Te3) sample shows a direct narrow bandgap of 0.8(2) eV, which indicates its semiconducting nature. The electrical resistivity of a sintered pellet of the polycrystalline sample exponentially decreases from ∼39.3 Ωcm to ∼0.57 Ωcm on heating it from 323 K to 773 K, confirming the sample's semiconducting nature. The sign of Seebeck coefficient values is positive in the 323 K to 773 K range confirming the p-type nature of the sintered sample. Interestingly, the sample attains an extremely low thermal conductivity of ∼0.32 Wm-1K-1 at 773 K, which could be attributed to the lattice anharmonicity caused by the lone pair effect of Sb3+ species in its complex pseudo-one-dimensional crystal structure. The electronic band structure of the title phase and the strength of chemical bonding of pertinent atomic pairs have been evaluated theoretically using the DFT method.
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Affiliation(s)
- Subhendu Jana
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India.
| | - Sweta Yadav
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India.
| | - Swati
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India.
| | - Manish K Niranjan
- Department of Physics, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India
| | - Jai Prakash
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502284, India.
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3
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Extremely low thermal conductivity in BaSb2Se4: Synthesis, characterization, and DFT studies. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Lin A, Ming C, Sun YY. Dilute Element Compounds: A Route to Enriching Inorganic Functional Materials. J Phys Chem Lett 2021; 12:8194-8202. [PMID: 34415168 DOI: 10.1021/acs.jpclett.1c02490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The development of functional materials calls for ever-enriching the inorganic material database. Doping is an effective way of achieving this purpose. Herein, we propose the concept of dilute element compounds (DECs), which contain a small amount of a dopant element distributed in a host crystal structure in an ordered manner. Different from dilute alloys or solid solutions, the DECs could be more resistant to segregation and are ideal for dispersing functional elements for applications such as single-atom catalysts. It is also expected that the DECs will serve as a route to discovering new inorganic functional materials by controlling phase transitions and tuning intrinsic properties of the host materials with applications including, but not limited to, thermoelectrics and solid-state electrolytes for secondary batteries. As an initial work, we quantify the diluteness of DECs and find the limits of diluteness in existing DECs. We further provide a classification scheme for the DECs to guide future discoveries.
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Affiliation(s)
- Aming Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chen Ming
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China
| | - Yi-Yang Sun
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
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5
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Collins CM, Daniels LM, Gibson Q, Gaultois MW, Moran M, Feetham R, Pitcher MJ, Dyer MS, Delacotte C, Zanella M, Murray CA, Glodan G, Pérez O, Pelloquin D, Manning TD, Alaria J, Darling GR, Claridge JB, Rosseinsky MJ. Discovery of a Low Thermal Conductivity Oxide Guided by Probe Structure Prediction and Machine Learning. Angew Chem Int Ed Engl 2021; 60:16457-16465. [PMID: 33951284 PMCID: PMC8362121 DOI: 10.1002/anie.202102073] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Indexed: 12/04/2022]
Abstract
We report the aperiodic titanate Ba10 Y6 Ti4 O27 with a room-temperature thermal conductivity that equals the lowest reported for an oxide. The structure is characterised by discontinuous occupancy modulation of each of the sites and can be considered as a quasicrystal. The resulting localisation of lattice vibrations suppresses phonon transport of heat. This new lead material for low-thermal-conductivity oxides is metastable and located within a quaternary phase field that has been previously explored. Its isolation thus requires a precisely defined synthetic protocol. The necessary narrowing of the search space for experimental investigation was achieved by evaluation of titanate crystal chemistry, prediction of unexplored structural motifs that would favour synthetically accessible new compositions, and assessment of their properties with machine-learning models.
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Affiliation(s)
| | - Luke M. Daniels
- Department of ChemistryUniversity of LiverpoolCrown StreetLiverpoolL69 7ZDUK
| | - Quinn Gibson
- Department of ChemistryUniversity of LiverpoolCrown StreetLiverpoolL69 7ZDUK
| | - Michael W. Gaultois
- Department of ChemistryUniversity of LiverpoolCrown StreetLiverpoolL69 7ZDUK
- Leverhulme Research Centre for Functional Materials DesignThe Materials Innovation FactoryUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
| | - Michael Moran
- Department of ChemistryUniversity of LiverpoolCrown StreetLiverpoolL69 7ZDUK
- Leverhulme Research Centre for Functional Materials DesignThe Materials Innovation FactoryUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
| | - Richard Feetham
- Department of ChemistryUniversity of LiverpoolCrown StreetLiverpoolL69 7ZDUK
| | - Michael J. Pitcher
- Department of ChemistryUniversity of LiverpoolCrown StreetLiverpoolL69 7ZDUK
| | - Matthew S. Dyer
- Department of ChemistryUniversity of LiverpoolCrown StreetLiverpoolL69 7ZDUK
| | - Charlene Delacotte
- Department of ChemistryUniversity of LiverpoolCrown StreetLiverpoolL69 7ZDUK
| | - Marco Zanella
- Department of ChemistryUniversity of LiverpoolCrown StreetLiverpoolL69 7ZDUK
| | - Claire A. Murray
- Diamond Light SourceHarwell Science and Innovation CampusOxfordshireOX11 0DEUK
| | - Gyorgyi Glodan
- University of ManchesterDalton Cumbrian FacilityWestlakes Science ParkMoor RowCA24 3HAUK
| | - Olivier Pérez
- Laboratoire CRISMATENSICAEN6 boulevard du Maréchal Juin14050Caen Cedex 4France
| | - Denis Pelloquin
- Laboratoire CRISMATENSICAEN6 boulevard du Maréchal Juin14050Caen Cedex 4France
| | - Troy D. Manning
- Department of ChemistryUniversity of LiverpoolCrown StreetLiverpoolL69 7ZDUK
| | - Jonathan Alaria
- Department of PhysicsUniversity of LiverpoolOxford StreetLiverpoolL69 7ZEUK
| | - George R. Darling
- Department of ChemistryUniversity of LiverpoolCrown StreetLiverpoolL69 7ZDUK
| | - John B. Claridge
- Department of ChemistryUniversity of LiverpoolCrown StreetLiverpoolL69 7ZDUK
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6
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Collins CM, Daniels LM, Gibson Q, Gaultois MW, Moran M, Feetham R, Pitcher MJ, Dyer MS, Delacotte C, Zanella M, Murray CA, Glodan G, Pérez O, Pelloquin D, Manning TD, Alaria J, Darling GR, Claridge JB, Rosseinsky MJ. Discovery of a Low Thermal Conductivity Oxide Guided by Probe Structure Prediction and Machine Learning. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Luke M. Daniels
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - Quinn Gibson
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - Michael W. Gaultois
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
- Leverhulme Research Centre for Functional Materials Design The Materials Innovation Factory University of Liverpool 51 Oxford Street Liverpool L7 3NY UK
| | - Michael Moran
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
- Leverhulme Research Centre for Functional Materials Design The Materials Innovation Factory University of Liverpool 51 Oxford Street Liverpool L7 3NY UK
| | - Richard Feetham
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - Michael J. Pitcher
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - Matthew S. Dyer
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - Charlene Delacotte
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - Marco Zanella
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - Claire A. Murray
- Diamond Light Source Harwell Science and Innovation Campus Oxfordshire OX11 0DE UK
| | - Gyorgyi Glodan
- University of Manchester Dalton Cumbrian Facility Westlakes Science Park Moor Row CA24 3HA UK
| | - Olivier Pérez
- Laboratoire CRISMAT ENSICAEN 6 boulevard du Maréchal Juin 14050 Caen Cedex 4 France
| | - Denis Pelloquin
- Laboratoire CRISMAT ENSICAEN 6 boulevard du Maréchal Juin 14050 Caen Cedex 4 France
| | - Troy D. Manning
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - Jonathan Alaria
- Department of Physics University of Liverpool Oxford Street Liverpool L69 7ZE UK
| | - George R. Darling
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - John B. Claridge
- Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK
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7
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Guo Q, Zhang W, Liu Z, Fu X, Le Tonquesse S, Sato N, Son HW, Shimamura K, Berthebaud D, Mori T. Thermoelectric Performance of Cr Doped and Cr-Fe Double-Doped Higher Manganese Silicides with Adjusted Carrier Concentration and Significant Electron-Phonon Interaction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:8574-8583. [PMID: 33560843 DOI: 10.1021/acsami.0c21484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Polycrystalline higher manganese silicides Mn1-xCrxSi1.74 (x = 0, 0.10, 0.20) with Cr single doping and Mn1-2yCryFeySi1.74 (y = 0.10, 0.20) with Cr-Fe double doping have been prepared by arc melting and spark plasma sintering. Hall effect results and thermoelectric transport properties measurements demonstrate that Cr doping effectively increases the carrier concentration, thereby giving rise to enhanced electrical conductivity and power factor. Coupled with an enlarged effective mass and a reduction in the lattice thermal conductivity, a maximum zT is realized in Mn0.90Cr0.10Si1.74. It is also proved that the carrier concentration and carrier scattering mechanism could be altered through further doping on the Mn site by Fe, which leads to a lower electrical conductivity and higher Seebeck coefficient. Factors related to the suppression of the lattice thermal conductivity, like mass and strain field fluctuation scattering and electron-phonon scattering, are also analyzed. This work reveals the effects of Cr single doping and Cr-Fe dual-element doping on the carrier concentration, carrier scattering mechanism, and lattice thermal conductivity of higher manganese silicides.
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Affiliation(s)
- Quansheng Guo
- WPI Center for Materials Nanoarchitechtonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba 305-0044, Japan
- CNRS-Saint Gobain-NIMS, UMI 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba 305-0044, Japan
| | - Wenhao Zhang
- WPI Center for Materials Nanoarchitechtonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba 305-0044, Japan
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennoudai 1-1-1, Tsukuba 305-8671, Japan
| | - Zihang Liu
- WPI Center for Materials Nanoarchitechtonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba 305-0044, Japan
| | - Xiuwei Fu
- Optical Single Crystals Group, Research Center for Functional Materials, NIMS, Namiki 1-1, Tsukuba 305-0044, Japan
| | - Sylvain Le Tonquesse
- CNRS-Saint Gobain-NIMS, UMI 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba 305-0044, Japan
| | - Naoki Sato
- WPI Center for Materials Nanoarchitechtonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba 305-0044, Japan
| | - Hyoung-Won Son
- WPI Center for Materials Nanoarchitechtonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba 305-0044, Japan
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennoudai 1-1-1, Tsukuba 305-8671, Japan
| | - Kiyoshi Shimamura
- Optical Single Crystals Group, Research Center for Functional Materials, NIMS, Namiki 1-1, Tsukuba 305-0044, Japan
- Graduate School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan
| | - David Berthebaud
- CNRS-Saint Gobain-NIMS, UMI 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba 305-0044, Japan
| | - Takao Mori
- WPI Center for Materials Nanoarchitechtonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba 305-0044, Japan
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennoudai 1-1-1, Tsukuba 305-8671, Japan
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8
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Chen H, Liu PF, Lin H, Wu XT. A new type of novel salt-inclusion chalcogenide with ultralow thermal conductivity. Chem Commun (Camb) 2020; 56:15149-15152. [PMID: 33210666 DOI: 10.1039/d0cc06306a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The design and development of novel chalcogenides with ultralow thermal conductivity is extremely important but very challenging for promoting the efficiencies of thermoelectric (TE) materials. Herein, a new type of salt-inclusion chalcogenide (SIC), [Rb6Cl][RE23Mn7Se44] (RE = Ho-Yb), was discovered via a modified flux method. They possessed [RESe6] and [MSe6] (M = RE/Mn) octahedra as basic building units, which interlinked to form a three-dimensional quasi-NaCl-type [RE23Mn7Se44]5- host framework, where the [Rb6Cl]5+ guest ions resided. Interestingly, these isomorphic compounds showed ultralow thermal conductivities (0.28-0.37 W m-1 K-1) at 673 K, which are reported for the first time in SICs. This work not only enriches SIC chemistry but also broadens the application of SICs in the TE field.
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Affiliation(s)
- Hong Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
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9
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Fukushi K, Yamaguchi J, Shibasaki Y, Fujimori A. Tracking and Recovery of Metal Desorption from Organized Films of Polyguanamine Derivatives having Cyclic Moieties. ChemistrySelect 2020. [DOI: 10.1002/slct.202003172] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Keito Fukushi
- Graduate School of Science and Engineering Saitama University, 255 Shimo-okubo, Sakura-ku Saitama 338-8570 Japan
| | - Junto Yamaguchi
- Faculty of Engineering Saitama University, 255 Shimo-okubo, Sakura-ku Saitama 338-8570 Japan
| | - Yuji Shibasaki
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering Iwate University, 4–3-5 Ueda, Morioka Iwate 020-8551 Japan
| | - Atsuhiro Fujimori
- Graduate School of Science and Engineering Saitama University, 255 Shimo-okubo, Sakura-ku Saitama 338-8570 Japan
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Imamaliyeva SZ, Mekhdiyeva IF, Babanly DM, Zlomanov VP, Tagiyev DB, Babanly MB. Solid-Phase Equilibria in the Tl2Te–Tl2Te3–TlErTe2 System and the Thermodynamic Properties of the Tl9ErTe6 and TlErTe2 Compounds. RUSS J INORG CHEM+ 2020. [DOI: 10.1134/s0036023620110066] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Zhou C, Yu Y, Lee YL, Ge B, Lu W, Cojocaru-Mirédin O, Im J, Cho SP, Wuttig M, Shi Z, Chung I. Exceptionally High Average Power Factor and Thermoelectric Figure of Merit in n-type PbSe by the Dual Incorporation of Cu and Te. J Am Chem Soc 2020; 142:15172-15186. [PMID: 32786777 DOI: 10.1021/jacs.0c07712] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Thermoelectric materials with high average power factor and thermoelectric figure of merit (ZT) has been a sought-after goal. Here, we report new n-type thermoelectric system CuxPbSe0.99Te0.01 (x = 0.0025, 0.004, and 0.005) exhibiting record-high average ZT ∼ 1.3 over 400-773 K ever reported for n-type polycrystalline materials including the state-of-the-art PbTe. We concurrently alloy Te to the PbSe lattice and introduce excess Cu to its interstitial voids. Their resulting strong attraction facilitates charge transfer from Cu atoms to the crystal matrix significantly. It follows the increased carrier concentration without damaging its mobility and the consequently improved electrical conductivity. This interaction also increases effective mass of electron in the conduction band according to DFT calculations, thereby raising the magnitude of Seebeck coefficient without diminishing electrical conductivity. Resultantly, Cu0.005PbSe0.99Te0.01 attains an exceptionally high average power factor of ∼27 μW cm-1 K-2 from 400 to 773 K with a maximum of ∼30 μW cm-1 K-2 at 300 K, the highest among all n- and p-type PbSe-based materials. Its ∼23 μW cm-1 K-2 at 773 K is even higher than ∼21 μW cm-1 K-2 of the state-of-the-art n-type PbTe. Interstitial Cu atoms induce the formation of coherent nanostructures. They are highly mobile, displacing Pb atoms from the ideal octahedral center and severely distorting the local microstructure. This significantly depresses lattice thermal conductivity to ∼0.2 Wm-1 K-1 at 773 K below the theoretical lower bound. The multiple effects of the dual incorporation of Cu and Te synergistically boosts a ZT of Cu0.005PbSe0.99Te0.01 to ∼1.7 at 773 K.
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Affiliation(s)
| | - Yuan Yu
- Institute of Physics (IA), RWTH Aachen University, 52056 Aachen, Germany
| | - Yea-Lee Lee
- Chemical Data-Driven Research Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Bangzhi Ge
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | | | | | - Jino Im
- Chemical Data-Driven Research Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | | | - Matthias Wuttig
- Institute of Physics (IA), RWTH Aachen University, 52056 Aachen, Germany.,JARA-FIT Institute Green-IT, RWTH Aachen University and Forschungszentrum Jülich, 52056 Aachen, Germany
| | - Zhongqi Shi
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - In Chung
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
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12
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Ren T, Han Z, Ying P, Li X, Li X, Lin X, Sarker D, Cui J. Manipulating Localized Vibrations of Interstitial Te for Ultra-High Thermoelectric Efficiency in p-Type Cu-In-Te Systems. ACS APPLIED MATERIALS & INTERFACES 2019; 11:32192-32199. [PMID: 31442031 DOI: 10.1021/acsami.9b12256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Thermoelectric materials are of imperative need on account of the worldwide energy crisis. However, their efficiency is limited by the interplay of high electrical and lower thermal conductivities, that is, the figure of merit (ZT). Owing to their unique crystal structures, Cu-In-Te-based chalcogenides are suitable for both and thus have attracted much attention recently as potential thermoelectrics. Here we explore a newly developed Cu-In-Te derivative compound Cu3.52In4.16Te8. With a proper adjustment of Cu2Te doping, this material shows an ultralow lattice thermal conductivity (κL) (0.3 WK-1m-1) and, consequently, a figure of merit (ZT) as high as 1.65(±0.15) at 815 K: the highest value reported for p-type Cu-In-Te to date. The reduction in κL is directly related to the alteration of local symmetry around the interstitial Te, resulting in an effectively optimized phonon transport through localized "rattling" of the same. Although the Hall carrier concentration reduces upon Cu2Te addition due to the unpinning of the Fermi level (EFermi) toward the conduction band minimum, the power factor remains stable. The knowledge depicted here not only demonstrates the potential of Cu3.52In4.16Te8-based alloys as a promising TE, but also provides guidelines for developing further high-performance thermoelectric materials by enhancing the electronic conductivity.
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Affiliation(s)
- Ting Ren
- School of Materials and Chemical Engineering , Ningbo University of Technology , Ningbo 315211 , China
- School of Materials Science and Engineering , China University of Mining and Technology , Xuzhou 221116 , China
| | - Zhongkang Han
- Division of Interfacial Water and Key laboratory of Interfacial Physics and Technology , Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai , 201800 , China
| | - Pengzhan Ying
- School of Materials Science and Engineering , China University of Mining and Technology , Xuzhou 221116 , China
| | - Xie Li
- School of Materials and Chemical Engineering , Ningbo University of Technology , Ningbo 315211 , China
| | - Xiaoyan Li
- Division of Interfacial Water and Key laboratory of Interfacial Physics and Technology , Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai , 201800 , China
| | - Xinyi Lin
- Department of Mechanical Engineering and Materials Science , Duke University , Durham , North Carolina 27708 , United States
| | - Debalaya Sarker
- Theory Department , Fritz-Haber Institute of the Max Planck Society , Faradayweg 4-6 , Berlin 14195 , Germany
| | - Jiaolin Cui
- School of Materials and Chemical Engineering , Ningbo University of Technology , Ningbo 315211 , China
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13
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Cha J, Zhou C, Cho SP, Park SH, Chung I. Ultrahigh Power Factor and Electron Mobility in n-Type Bi 2Te 3- x%Cu Stabilized under Excess Te Condition. ACS APPLIED MATERIALS & INTERFACES 2019; 11:30999-31008. [PMID: 31385496 DOI: 10.1021/acsami.9b10394] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The thermoelectric (TE) community has mainly focused on improving the figure of merit (ZT) of materials. However, the output power of TE devices directly depends on the power factor (PF) rather than ZT. Effective strategies of enhancing PF have been elusive for Bi2Te3-based compounds, which are efficient thermoelectrics operating near ambient temperature. Here, we report ultrahigh carrier mobility of ∼467 cm2 V-1 s-1 and power factor of ∼45 μW cm-1 K-2 in a new n-type Bi2Te3 system with nominal composition CuxBi2Te3.17 (x = 0.02, 0.04, and 0.06). It is obtained by reacting Bi2Te3 with surplus Cu and Te and subsequently pressing powder products by spark plasma sintering (SPS). The SPS discharges excess Te but stabilizes the high extent of Cu in the structure, giving unique SPS CuxBi2Te3.17 samples. The analyzed composition is close to "CuxBi2Te3". Their charge transport properties are highly unusual. Hall carrier concentration and mobility simultaneously increase with the higher mole fraction of Cu contrary to the typical carrier scattering mechanism. As a consequence, the electrical conductivity is considerably enhanced with Cu incorporation. The Seebeck coefficient is nearly unchanged by the increasing Cu content in contrast to the general understanding of inverse relationship between electrical conductivity and Seebeck coefficient. These effects synergistically lead to a record high power factor among all polycrystalline n-type Bi2Te3-based materials.
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Affiliation(s)
- Joonil Cha
- Center for Nanoparticle Research , Institute for Basic Science (IBS) , Seoul 08826 , Republic of Korea
| | - Chongjian Zhou
- Center for Nanoparticle Research , Institute for Basic Science (IBS) , Seoul 08826 , Republic of Korea
| | | | - Sang Hyun Park
- Korea Institute of Energy Research , Daejeon 34129 , Republic of Korea
| | - In Chung
- Center for Nanoparticle Research , Institute for Basic Science (IBS) , Seoul 08826 , Republic of Korea
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Imamaliyeva SZ, Mekhdiyeva IF, Gasymov VA, Babanly MB. Tl–Bi–Er–Te System in the Composition Region Tl2Te–Tl9BiTe6–Tl9ErTe6. RUSS J INORG CHEM+ 2019. [DOI: 10.1134/s0036023619070192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Jana S, Ishtiyak M, Mesbah A, Lebègue S, Prakash J, Malliakas CD, Ibers JA. Synthesis and Characterization of Ba2Ag2Se2(Se2). Inorg Chem 2019; 58:7837-7844. [DOI: 10.1021/acs.inorgchem.9b00506] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Subhendu Jana
- Department of Chemistry, Indian Institute of Technology (IIT) Hyderabad, Kandi, Sangareddy, 502285 Telangana, India
| | - Mohd Ishtiyak
- Department of Chemistry, Indian Institute of Technology (IIT) Hyderabad, Kandi, Sangareddy, 502285 Telangana, India
| | - Adel Mesbah
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
- ICSM, UMR 5257, CEA CNRS, ENSCM, Université de Montpellier, Site de Marcoule-Bât. 426, BP 17171, 30207 Bagnols-sur-Cèze, France
| | - Sébastien Lebègue
- Laboratoire de Physique et Chimie Théoriques (LPCT, UMR CNRS 7019), Institut Jean Barriol, Université de Lorraine, BP 239, Boulevard des Aiguillettes, Vandoeuvre-lès-Nancy 54506, France
| | - Jai Prakash
- Department of Chemistry, Indian Institute of Technology (IIT) Hyderabad, Kandi, Sangareddy, 502285 Telangana, India
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Christos D. Malliakas
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - James A. Ibers
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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17
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High-Performance n-Type PbSe–Cu2Se Thermoelectrics through Conduction Band Engineering and Phonon Softening. J Am Chem Soc 2018; 140:15535-15545. [DOI: 10.1021/jacs.8b10448] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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