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Mukherjee S, Voneshen DJ, Duff A, Goddard P, Powell AV, Vaqueiro P. Beyond Rattling: Tetrahedrites as Incipient Ionic Conductors. Adv Mater 2023; 35:e2306088. [PMID: 37581205 DOI: 10.1002/adma.202306088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/04/2023] [Indexed: 08/16/2023]
Abstract
Materials with ultralow thermal conductivity are crucial to many technological applications, including thermoelectric energy harvesting, thermal barrier coatings, and optoelectronics. Liquid-like mobile ions are effective at disrupting phonon propagation, hence suppressing thermal conduction. However, high ionic mobility leads to the degradation of liquid-like thermoelectric materials under operating conditions due to ion migration and metal deposition at the cathode, hindering their practical application. Here, a new type of behavior, incipient ionic conduction, which leads to ultralow thermal conductivity, while overcoming the issues of degradation inherent in liquid-like materials, is identified. Using neutron spectroscopy and molecular dynamics (MD) simulations, it is demonstrated that in tetrahedrite, an established thermoelectric material with a remarkably low thermal conductivity, copper ions, although mobile above 200 K, are predominantly confined to cages within the crystal structure. Hence the undesirable migration of cations to the cathode can be avoided. These findings unveil a new approach for the design of materials with ultralow thermal conductivity, by exploring systems in which incipient ionic conduction may be present.
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Affiliation(s)
- Shriparna Mukherjee
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6DX, UK
| | - David J Voneshen
- ISIS Pulsed Neutron and Muon Source, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
- Department of Physics, Royal Holloway University of London, Egham, TW20 0EX, UK
| | - Andrew Duff
- Scientific Computing Department, STFC Daresbury Laboratory, Warrington, WA4 4AD, UK
| | - Pooja Goddard
- Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UK
| | - Anthony V Powell
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6DX, UK
| | - Paz Vaqueiro
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6DX, UK
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Yamada T, Yoshiya M, Kanno M, Takatsu H, Ikeda T, Nagai H, Yamane H, Kageyama H. Correlated Rattling of Sodium-Chains Suppressing Thermal Conduction in Thermoelectric Stannides. Adv Mater 2023; 35:e2207646. [PMID: 36527352 DOI: 10.1002/adma.202207646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/18/2022] [Indexed: 06/17/2023]
Abstract
Tin-based intermetallics with tunnel frameworks containing zigzag Na chains that excite correlated rattling impinging on the framework phonons are attractive as thermoelectric materials owing to their low lattice thermal conductivity. The correlated rattling of Na atoms in the zigzag chains and the origin of the low thermal conductivity is uncovered via experimental and computational analyses. The Na atoms behave as oscillators along the tunnel, resulting in substantial interactions between Na atoms in the chain and between the chain and framework. In these intermetallic compounds, a shorter inter-rattler distance results in lower thermal conductivity, suggesting that phonon scattering by the correlated rattling Na-chains is enhanced. These results provide new insights into the behavior of thermoelectric materials with low thermal conductivity and suggest strategies for the development of such materials that utilize the correlated rattling.
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Affiliation(s)
- Takahiro Yamada
- Institute of Multidisciplinary Research for Advanced Material, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, 332-0012, Japan
| | - Masato Yoshiya
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Masahiro Kanno
- Institute of Multidisciplinary Research for Advanced Material, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
- Department of Metallurgy, Materials Science and Materials Processing, Graduate School of Engineering, Tohoku University, 6-6-04 Aramaki Aza Aoba, Aoba-ku, Sendai, 980-8579, Japan
| | - Hiroshi Takatsu
- Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Takuji Ikeda
- Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST Tohoku), 4-2-1 Nigatake, Miyagino-ku, Sendai, 983-8551, Japan
| | - Hideaki Nagai
- Research Institute for Energy Conservation, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Hisanori Yamane
- Institute of Multidisciplinary Research for Advanced Material, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Hiroshi Kageyama
- Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
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Straus DB, Guo S, Abeykoon AM, Cava RJ. Understanding the Instability of the Halide Perovskite CsPbI 3 through Temperature-Dependent Structural Analysis. Adv Mater 2020; 32:e2001069. [PMID: 32633043 DOI: 10.1002/adma.202001069] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 05/31/2020] [Indexed: 06/11/2023]
Abstract
Despite the tremendous interest in halide perovskite solar cells, the structural reasons that cause the all-inorganic perovskite CsPbI3 to be unstable at room temperature remain mysterious, especially since many tolerance-factor-based approaches predict CsPbI3 should be stable as a perovskite. Here single-crystal X-ray diffraction and X-ray pair distribution function (PDF) measurements characterize bulk perovskite CsPbI3 from 100 to 295 K to elucidate its thermodynamic instability. While Cs occupies a single site from 100 to 150 K, it splits between two sites from 175 to 295 K with the second site having a lower effective coordination number, which, along with other structural parameters, suggests that Cs rattles in its coordination polyhedron. PDF measurements reveal that on the length scale of the unit cell, the PbI octahedra concurrently become greatly distorted, with one of the IPbI angles approaching 82° compared to the ideal 90°. The rattling of Cs, low number of CsI contacts, and high degree of octahedral distortion cause the instability of perovskite-phase CsPbI3. These results reveal the limitations of tolerance factors in predicting perovskite stability and provide detailed structural information that suggests methods to engineer stable CsPbI3 -based solar cells.
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Affiliation(s)
- Daniel B Straus
- Department of Chemistry, Princeton University, Princeton, NJ, 08544, USA
| | - Shu Guo
- Department of Chemistry, Princeton University, Princeton, NJ, 08544, USA
| | - Am Milinda Abeykoon
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Robert J Cava
- Department of Chemistry, Princeton University, Princeton, NJ, 08544, USA
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Juneja R, Singh AK. Rattling-Induced Ultralow Thermal Conductivity Leading to Exceptional Thermoelectric Performance in AgIn 5S 8. ACS Appl Mater Interfaces 2019; 11:33894-33900. [PMID: 31454220 DOI: 10.1021/acsami.9b10006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Rattling has emerged as one of the most significant phenomenon for notably reducing the thermal conductivity in complex crystal systems. In this work, using first-principles density functional theory, we found that rattlers can be hosted in simpler crystal systems such as AgIn5S8 and CuIn5S8. Rattlers Ag and Cu exhibit weak and anisotropic bonding with the neighboring In and S and reside in a very shallow anharmonic potential well. The phonon spectra of these compounds have multiple avoided crossing of optical and acoustic modes, which are a signature of rattling motion. This leads to ultralow thermal conductivity, which is inversely proportional to mass and frequency span of rattling modes. Even though Ag atoms contribute to the valence band states, the rattler modes of Ag do not scatter carriers significantly, leaving the electronic transport virtually unaffected. Moreover, AgIn5S8 possesses a combination of heavy and light valence bands resulting in a very high power factor. A combination of favorable thermal and electronic transport results in a very high figure of merit of 2.2 in p-doped AgIn5S8 at 1000 K. The proposed idea of having rattlers in simpler systems can be extended to a wider class of materials, which would accelerate the development of thermoelectric modules for waste energy harvesting.
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Affiliation(s)
- Rinkle Juneja
- Materials Research Centre , Indian Institute of Science , Bangalore 560012 , India
| | - Abhishek K Singh
- Materials Research Centre , Indian Institute of Science , Bangalore 560012 , India
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Ghassemi N, Lu X, Tian Y, Conant E, Yan Y, Zhou X, Ross JH. Structure Change and Rattling Dynamics in Cu 12Sb 4S 13 Tetrahedrite: an NMR Study. ACS Appl Mater Interfaces 2018; 10:36010-36017. [PMID: 30251531 DOI: 10.1021/acsami.8b13646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We present a 63Cu and 65Cu NMR study of Cu12Sb4S13, the basis for tetrahedrite thermoelectric materials. In addition to electronic changes observed at the Tc = 88 K metal-insulator transition, we find that locally there are significant structural changes occurring as the temperature extends above Tc, which we associate with Cu atom displacements away from symmetry positions. Spin-lattice relaxation rates (1/ T1) are dominated by a quadrupolar process indicating anharmonic vibrational dynamics both above and below Tc. We used a quasiharmonic approximation for localized anharmonic oscillators to analyze the impact of Cu rattling. The results demonstrate that Cu-atom rattling dynamics extends unimpeded in the distorted structural configuration below Tc and provide a direct measure of the anharmonic potential well.
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Affiliation(s)
| | - Xu Lu
- Department of Applied Physics , Chongqing University , Chongqing 401331 , China
| | | | | | - Yanci Yan
- Department of Applied Physics , Chongqing University , Chongqing 401331 , China
| | - Xiaoyuan Zhou
- Department of Applied Physics , Chongqing University , Chongqing 401331 , China
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Suekuni K, Lee CH, Tanaka HI, Nishibori E, Nakamura A, Kasai H, Mori H, Usui H, Ochi M, Hasegawa T, Nakamura M, Ohira-Kawamura S, Kikuchi T, Kaneko K, Nishiate H, Hashikuni K, Kosaka Y, Kuroki K, Takabatake T. Retreat from Stress: Rattling in a Planar Coordination. Adv Mater 2018; 30:e1706230. [PMID: 29388262 DOI: 10.1002/adma.201706230] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/06/2017] [Indexed: 06/07/2023]
Abstract
Thermoelectric devices convert heat flow to charge flow, providing electricity. Materials for highly efficient devices must satisfy conflicting requirements of high electrical conductivity and low thermal conductivity. Thermal conductivity in caged compounds is known to be suppressed by a large vibration of guest atoms, so-called rattling, which effectively scatters phonons. Here, the crystal structure and phonon dynamics of tetrahedrites (Cu,Zn)12 (Sb,As)4 S13 are studied. The results reveal that the Cu atoms in a planar coordination are rattling. In contrast to caged compounds, chemical pressure enlarges the amplitude of the rattling vibration in the tetrahedrites so that the rattling atom is squeezed out of the planar coordination. Furthermore, the rattling vibration shakes neighbors through lone pairs of the metalloids, Sb and As, which is responsible for the low thermal conductivity of tetrahedrites. These findings provide a new strategy for the development of highly efficient thermoelectric materials with planar coordination.
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Affiliation(s)
- Koichiro Suekuni
- Department of Applied Science for Electronics and Materials, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka, 816-8580, Japan
| | - Chul Ho Lee
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, 305-8568, Japan
| | - Hiromi I Tanaka
- Department of Quantum Matter, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, 739-8530, Japan
| | - Eiji Nishibori
- Division of Physics, Faculty of Pure and Applied Sciences, Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| | - Atsushi Nakamura
- Graduate School of Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| | - Hidetaka Kasai
- Division of Physics, Faculty of Pure and Applied Sciences, Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| | - Hitoshi Mori
- Department of Physics, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Hidetomo Usui
- Department of Physics, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Masayuki Ochi
- Department of Physics, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Takumi Hasegawa
- Graduate School of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima, 739-8521, Japan
| | - Mitsutaka Nakamura
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan
| | | | - Tatsuya Kikuchi
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan
| | - Koji Kaneko
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan
- Materials Sciences Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan
| | - Hirotaka Nishiate
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, 305-8568, Japan
| | - Katsuaki Hashikuni
- Department of Quantum Matter, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, 739-8530, Japan
| | - Yasufumi Kosaka
- Department of Quantum Matter, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, 739-8530, Japan
| | - Kazuhiko Kuroki
- Department of Physics, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Toshiro Takabatake
- Department of Quantum Matter, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, 739-8530, Japan
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Yamada T, Yamane H, Nagai H. A thermoelectric zintl phase Na2+x Ga2+x Sn4-x with disordered Na atoms in helical tunnels. Adv Mater 2015; 27:4708-4713. [PMID: 26175276 DOI: 10.1002/adma.201501970] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 06/15/2015] [Indexed: 06/04/2023]
Abstract
A polycrystalline sample of Na2+x Ga2+x Sn4-x with x = 0.19 has low thermal conductivities of 0.56 and 0.58 W m(-1) K(-1) due to static and dynamic positional disorder of Na atoms in the crystal structure and dimensionless figures of merit (ZT values) values of 0.98 and 1.28 at 295 and 340 K, respectively. The performance is comparable to those of commercial Bi2 Te3 -based materials.
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Affiliation(s)
- Takahiro Yamada
- Institute of Multidisciplinary Research for Advanced Material, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Hisanori Yamane
- Institute of Multidisciplinary Research for Advanced Material, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Hideaki Nagai
- National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, 305-8565, Japan
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