1
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Mocatti S, Marini G, Calandra M. Light-Induced Nonthermal Phase Transition to the Topological Crystalline Insulator State in SnSe. J Phys Chem Lett 2023; 14:9329-9334. [PMID: 37819838 PMCID: PMC10591509 DOI: 10.1021/acs.jpclett.3c02450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 10/05/2023] [Indexed: 10/13/2023]
Abstract
Femtosecond pulses have been used to reveal hidden broken symmetry states and induce transitions to metastable states. However, these states are mostly transient and disappear after laser removal. Photoinduced phase transitions toward crystalline metastable states with a change of topological order are rare and difficult to predict and realize experimentally. Here, by using constrained density functional perturbation theory and accounting for light-induced quantum anharmonicity, we show that ultrafast lasers can permanently transform the topologically trivial orthorhombic structure of SnSe into the topological crystalline insulating rocksalt phase via a first-order nonthermal phase transition. We describe the reaction path and evaluate the critical fluence and possible decay channels after photoexcitation. Our simulations of the photoexcited structural and vibrational properties are in excellent agreement with recent pump-probe data in the intermediate fluence regime below the transition with an error on the curvature of the quantum free energy of the photoexcited state that is smaller than 2%.
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Affiliation(s)
- Stefano Mocatti
- Department of Physics, University
of Trento, Via Sommarive 14, 38123 Povo, Italy
| | - Giovanni Marini
- Department of Physics, University
of Trento, Via Sommarive 14, 38123 Povo, Italy
| | - Matteo Calandra
- Department of Physics, University
of Trento, Via Sommarive 14, 38123 Povo, Italy
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2
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Li X, Yang J, Sun H, Huang L, Li H, Shi J. Controlled Synthesis and Accurate Doping of Wafer-Scale 2D Semiconducting Transition Metal Dichalcogenides. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2305115. [PMID: 37406665 DOI: 10.1002/adma.202305115] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/24/2023] [Accepted: 07/04/2023] [Indexed: 07/07/2023]
Abstract
2D semiconducting transition metal dichalcogenide (TMDCs) possess atomically thin thickness, a dangling-bond-free surface, flexible band structure, and silicon-compatible feature, making them one of the most promising channels for constructing state-of-the-art field-effect transistors in the post-Moore's era. However, the existing 2D semiconducting TMDCs fall short of meeting the industry criteria for practical applications in electronics due to their small domain size and the lack of an effective approach to modulate intrinsic physical properties. Therefore, it is crucial to prepare and dope 2D semiconducting TMDCs single crystals with wafer size. In this review, the up-to-date progress regarding the wafer-scale growth of 2D semiconducting TMDC polycrystalline and single-crystal films is systematically summarized. The domain orientation control of 2D TMDCs and the seamless stitching of unidirectionally aligned 2D islands by means of substrate design are proposed. In addition, the accurate and uniform doping of 2D semiconducting TMDCs and the effect on electronic device performances are also discussed. Finally, the dominating challenges pertaining to the enhancement of the electronic device performances of TMDCs are emphasized, and further development directions are put forward. This review provides a systematic and in-depth summary of high-performance device applications of 2D semiconducting TMDCs.
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Affiliation(s)
- Xiaohui Li
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, P. R. China
| | - Junbo Yang
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, P. R. China
| | - Hang Sun
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, P. R. China
| | - Ling Huang
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, P. R. China
| | - Hui Li
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, P. R. China
| | - Jianping Shi
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, P. R. China
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3
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Yu J, Cen D, Chen Y, Zhao H, Xu M, Wu S, Wang S, Jin Q, Shen T. Epsilon-poly-l-lysine conjugated erythromycin for enhanced antibiotic therapy. RSC Adv 2023; 13:18651-18657. [PMID: 37346938 PMCID: PMC10280332 DOI: 10.1039/d3ra03168c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 06/15/2023] [Indexed: 06/23/2023] Open
Abstract
Antibiotic resistance is a big threat to public health. How to improve the therapeutic efficacy of conventional antibiotics is an effective way to address this issue. In order to enhance the antibacterial activity of conventional antibiotic erythromycin (EM), EM is conjugated to positively charged ε-poly-l-lysine (EPL) to obtain EPL modified EM (EPL-EM). The grafting ratio of EM can be calculated from the 1H NMR spectrum. EPL-EM is stable in physiological environment, while EM can be readily released from EPL-EM upon incubating with esterase which can be secreted by most bacteria. Because of the presence of cationic EPL, EPL-EM showed much stronger antibacterial activity than free EM, with much lower minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). Moreover, compared to free EM, the development of drug resistance can be slowed down if EPL-EM is used, which can be ascribed to the reduction of EM dosage. Meanwhile, EPL-EM cannot induce hemolysis and cytotoxicity, which indicates that EPL-EM exhibits excellent biocompatibility. The design of EPL-EM with enhanced antibacterial activity and excellent biocompatibility provides an innovative way to combat antibiotic resistance.
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Affiliation(s)
- Jie Yu
- Center for Rehabilitation Medicine, Department of Ophthalmology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College Hangzhou 310014 China
| | - Danwei Cen
- Faculty of Pharmacy, Zhejiang Pharmaceutical University Ningbo 315100 China
| | - Yongcheng Chen
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University Hangzhou 310058 China
| | - Hailan Zhao
- Center for Rehabilitation Medicine, Department of Ophthalmology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College Hangzhou 310014 China
| | - Mengyue Xu
- Center for Rehabilitation Medicine, Department of Ophthalmology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College Hangzhou 310014 China
| | - Sulan Wu
- Center for Rehabilitation Medicine, Department of Ophthalmology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College Hangzhou 310014 China
| | - Shuo Wang
- Faculty of Pharmacy, Zhejiang Pharmaceutical University Ningbo 315100 China
| | - Qiao Jin
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University Hangzhou 310058 China
| | - Ting Shen
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases Hangzhou 310009 China
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4
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Zakay N, Schlesinger A, Argaman U, Nguyen L, Maman N, Koren B, Ozeri M, Makov G, Golan Y, Azulay D. Electrical and Optical Properties of γ-SnSe: A New Ultra-narrow Band Gap Material. ACS APPLIED MATERIALS & INTERFACES 2023; 15:15668-15675. [PMID: 36920349 PMCID: PMC10064319 DOI: 10.1021/acsami.2c22134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
We describe the unusual properties of γ-SnSe, a new orthorhombic binary phase in the tin monoselenide system. This phase exhibits an ultranarrow band gap under standard pressure and temperature conditions, leading to high conductivity under ambient conditions. Density functional calculations identified the similarity and difference between the new γ-SnSe phase and the conventional α-SnSe based on the electron localization function. Very good agreement was obtained for the band gap width between the band structure calculations and the experiment, and insight provided for the mechanism of reduction in the band gap. The unique properties of this material may render it useful for applications such as thermal imaging devices and solar cells.
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Affiliation(s)
- Noy Zakay
- Department
of Materials Engineering, Ben-Gurion University
of the Negev, Beer-Sheva 8410501, Israel
- Ilse
Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | | | - Uri Argaman
- Department
of Materials Engineering, Ben-Gurion University
of the Negev, Beer-Sheva 8410501, Israel
| | - Long Nguyen
- Department
of Materials Engineering, Ben-Gurion University
of the Negev, Beer-Sheva 8410501, Israel
| | - Nitzan Maman
- Ilse
Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Bar Koren
- Department
of Materials Engineering, Ben-Gurion University
of the Negev, Beer-Sheva 8410501, Israel
- Ilse
Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Meital Ozeri
- Racah
Institute of Physics, The Hebrew University, Jerusalem 9190401, Israel
| | - Guy Makov
- Department
of Materials Engineering, Ben-Gurion University
of the Negev, Beer-Sheva 8410501, Israel
- Ilse
Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Yuval Golan
- Department
of Materials Engineering, Ben-Gurion University
of the Negev, Beer-Sheva 8410501, Israel
- Ilse
Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Doron Azulay
- Azrieli
College of Engineering, Jerusalem 9103501, Israel
- Racah
Institute of Physics, The Hebrew University, Jerusalem 9190401, Israel
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5
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Xue W, Li S, He H, Zhi S, Li X, Bai F, Chen C, Mao J, Wang Y, Zhang Q. Insight into the intrinsic microstructures of polycrystalline SnSe based compounds. NANOTECHNOLOGY 2023; 34:245704. [PMID: 36974672 DOI: 10.1088/1361-6528/acc40b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
SnSe based compounds have attracted much attention due to the ultra-low lattice thermal conductivity and excellent thermoelectric properties. The origin of the low thermal conductivity has been ascribed to the strong phonon anharmonicity. Generally, the microstructures are also effective in scattering the phonons and further reducing the lattice thermal conductivity. In this work, the microstructures of undoped SnSe and Bi-doped Sn0.97SeBi0.03have been investigated by transmission electron microscopy. A characteristic microstructure of lath-like grains has been observed in SnSe based compounds from perpendicular to the pressure direction. In addition, there exist a large quantity of low-angle grain boundaries and a high concentration of edge dislocations and stacking faults in the grains. All these microstructures result in lattice mismatch and distortion and can act as the phonon scattering centers, which broaden the understanding of the low thermal conductivity of SnSe based compounds.
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Affiliation(s)
- Wenhua Xue
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Shan Li
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
| | - Huolun He
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
| | - Shizhen Zhi
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
| | - Xiaofang Li
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
| | - Fengxian Bai
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
| | - Chen Chen
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
| | - Jun Mao
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
| | - Yumei Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Qian Zhang
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
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6
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Gong Y, Zhang S, Hou Y, Li S, Wang C, Xiong W, Zhang Q, Miao X, Liu J, Cao Y, Li D, Chen G, Tang G. Enhanced Density of States Facilitates High Thermoelectric Performance in Solution-Grown Ge- and In-Codoped SnSe Nanoplates. ACS NANO 2023; 17:801-810. [PMID: 36580686 DOI: 10.1021/acsnano.2c11095] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
SnSe single crystals have gained great interest due to their excellent thermoelectric performance. However, polycrystalline SnSe is greatly desired due to facile processing, machinability, and scale-up application. Here, we report an outstanding high average ZT of 0.88 as well as a high peak ZT of 1.92 in solution-processed SnSe nanoplates. Nanosized boundaries formed by nanoplates and lattice strain created by lattice dislocations and stacking faults effectively scatter heat-carrying phonons, resulting in an ultralow lattice thermal conductivity of 0.19 W m-1 K-1 at 873 K. Ultraviolet photoelectron spectroscopy reveals that Ge and In incorporation produces an enhanced density of states in the electronic structure of SnSe, resulting in a large Seebeck coefficient. Ge and In codoping not only optimizes the Seebeck coefficient but also substantially increases the carrier concentration and electrical conductivity, helping to maintain a high power factor over a wide temperature range. Benefiting from an enhanced power factor and markedly reduced lattice thermal conductivity, high average ZT and peak ZT are achieved in Ge- and In-codoped SnSe nanoplates. This work achieves an ultrahigh average ZT of 0.88 in polycrystalline SnSe by adopting nontoxic element doping, potentially expanding its usefulness for various thermoelectric generator applications.
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Affiliation(s)
- Yaru Gong
- MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China
| | - Shihua Zhang
- MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China
| | - Yunxiang Hou
- MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China
| | - Shuang Li
- MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China
| | - Chong Wang
- MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China
| | - Wenjie Xiong
- MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China
| | - Qingtang Zhang
- MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China
| | - Xuefei Miao
- MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China
| | - Jizi Liu
- MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China
| | - Yang Cao
- MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China
| | - Di Li
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei230031, People's Republic of China
| | - Guang Chen
- MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China
| | - Guodong Tang
- MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China
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7
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Trivedi V, Tiadi M, Murty BS, Satapathy DK, Battabyal M, Gopalan R. Giant Thermoelectric Efficiency of Single-Filled Skutterudite Nanocomposites: Role of Interface Carrier Filtering. ACS APPLIED MATERIALS & INTERFACES 2022; 14:51084-51095. [PMID: 36314554 DOI: 10.1021/acsami.2c13747] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The advantage of secondary-phase induced carrier filtering on the thermoelectric properties has paved the way for developing cost-effective, highly efficient thermoelectric materials. Here, we report a very high thermoelectric figure-of-merit of skutterudite nanocomposites achieved by tailoring interface carrier filtering. The single-filled skutterudite nanocomposites are prepared by dispersing rare-earth oxides nanoparticles (Yb2O3, Sm2O3, La2O3) in the skutterudite (Dy0.4Co3.2Ni0.8Sb12) matrix. The nanoparticles/skutterudite interfaces act as efficient carrier filters, thereby significantly enhancing the Seebeck coefficient without compromising the electrical conductivity. As a result, the highest power factor of ∼6.5 W/mK2 is achieved in the skutterudite nanocomposites. The nonuniform strain distribution near the nanoparticles due to the local lattice misfit and concentration fluctuations affect the heat carriers and thereby reduce the lattice thermal conductivity. Moreover, the three-dimensional atom probe analysis reveals the formation of Ni-rich grain boundaries in the skutterudite matrix, which also facilitates the reduction of lattice thermal conductivity. Both the factors, i.e., the reduction in lattice thermal conductivity and the enhancement of the power factor, lead to an enormous increase in ZT up to ∼1.84 at 723 K and an average ZT of about 1.56 in the temperature range from 523 to 723 K, the highest among the single-filled skutterudites reported so far.
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Affiliation(s)
- Vikrant Trivedi
- International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), IIT M Research Park, Chennai-600113, India
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai-600036, India
| | - Minati Tiadi
- International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), IIT M Research Park, Chennai-600113, India
- Soft Materials Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai-600036, India
| | | | - Dillip K Satapathy
- Soft Materials Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai-600036, India
| | - Manjusha Battabyal
- International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), IIT M Research Park, Chennai-600113, India
| | - Raghavan Gopalan
- International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), IIT M Research Park, Chennai-600113, India
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8
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Chandra S, Bhat U, Dutta P, Bhardwaj A, Datta R, Biswas K. Modular Nanostructures Facilitate Low Thermal Conductivity and Ultra-High Thermoelectric Performance in n-Type SnSe. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2203725. [PMID: 36028167 DOI: 10.1002/adma.202203725] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/22/2022] [Indexed: 06/15/2023]
Abstract
Single crystals of SnSe have gained considerable attention in thermoelectrics due to their unprecedented thermoelectric performance. However, polycrystalline SnSe is more favorable for practical applications due to its facile chemical synthesis procedure, processability, and scalability. Though the thermoelectric figure of merit (zT) of p-type bulk SnSe polycrystals has reached >2.5, zT of n-type counterpart is still lower and lies around ≈1.5. Herein, record high zT of 2.0 in n-type polycrystalline SnSe0.92 + x mol% MoCl5 (x = 0-3) samples is reported, when measured parallel to the spark plasma sintering pressing direction due to the simultaneous optimization of n-type carrier concentration and enhanced phonon scattering by incorporating modular nano-heterostructures in SnSe matrix. Modular nanostructures of layered intergrowth [(SnSe)1.05 ]m (MoSe2 )n like compounds embedded in SnSe matrix scatters the phonons significantly leading to an ultra-low lattice thermal conductivity (κlat ) of ≈0.26 W m-1 K-1 at 798 K in SnSe0.92 + 3 mol% MoCl5 . The 2D layered modular intergrowth compound resembles the nano-heterostructure and their periodicity of 1.2-2.6 nm in the SnSe matrix matches the phonon mean free path of SnSe, thereby blocking the heat carrying phonons, which result in low κlat and ultra-high thermoelectric performance in n-type SnSe.
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Affiliation(s)
- Sushmita Chandra
- New Chemistry Unit, International Centre for Materials Science and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
| | - Usha Bhat
- Chemistry and Physics of Materials Unit, International Centre for Materials Science and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
| | - Prabir Dutta
- New Chemistry Unit, International Centre for Materials Science and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
| | - Aditya Bhardwaj
- New Chemistry Unit, International Centre for Materials Science and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
| | - Ranjan Datta
- Chemistry and Physics of Materials Unit, International Centre for Materials Science and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
| | - Kanishka Biswas
- New Chemistry Unit, International Centre for Materials Science and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
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9
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Chang C, Liu Y, Ho Lee S, Chiara Spadaro M, Koskela KM, Kleinhanns T, Costanzo T, Arbiol J, Brutchey RL, Ibáñez M. Surface Functionalization of Surfactant-Free Particles: A Strategy to Tailor the Properties of Nanocomposites for Enhanced Thermoelectric Performance. Angew Chem Int Ed Engl 2022; 61:e202207002. [PMID: 35799379 PMCID: PMC9542085 DOI: 10.1002/anie.202207002] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Indexed: 11/06/2022]
Abstract
The broad implementation of thermoelectricity requires high-performance and low-cost materials. One possibility is employing surfactant-free solution synthesis to produce nanopowders. We propose the strategy of functionalizing "naked" particles' surface by inorganic molecules to control the nanostructure and, consequently, thermoelectric performance. In particular, we use bismuth thiolates to functionalize surfactant-free SnTe particles' surfaces. Upon thermal processing, bismuth thiolates decomposition renders SnTe-Bi2 S3 nanocomposites with synergistic functions: 1) carrier concentration optimization by Bi doping; 2) Seebeck coefficient enhancement and bipolar effect suppression by energy filtering; and 3) lattice thermal conductivity reduction by small grain domains, grain boundaries and nanostructuration. Overall, the SnTe-Bi2 S3 nanocomposites exhibit peak z T up to 1.3 at 873 K and an average z T of ≈0.6 at 300-873 K, which is among the highest reported for solution-processed SnTe.
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Affiliation(s)
- Cheng Chang
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
| | - Yu Liu
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
| | - Seung Ho Lee
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
| | - Maria Chiara Spadaro
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
| | - Kristopher M Koskela
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA
| | - Tobias Kleinhanns
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
| | - Tommaso Costanzo
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and BIST, 08193, Barcelona, Catalonia, Spain.,ICREA, Pg. Lluís Companys 23, 08010, Barcelona, Catalonia, Spain
| | - Richard L Brutchey
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA
| | - Maria Ibáñez
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
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10
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Chang C, Liu Y, Ho Lee S, Chiara Spadaro M, Koskela KM, Kleinhanns T, Costanzo T, Arbiol J, Brutchey RL, Ibáñez M. Surface Functionalization of Surfactant-Free Particles: A Strategy to Tailor the Properties of Nanocomposites for Enhanced Thermoelectric Performance. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 134:e202207002. [PMID: 38505739 PMCID: PMC10947131 DOI: 10.1002/ange.202207002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Indexed: 11/07/2022]
Abstract
The broad implementation of thermoelectricity requires high-performance and low-cost materials. One possibility is employing surfactant-free solution synthesis to produce nanopowders. We propose the strategy of functionalizing "naked" particles' surface by inorganic molecules to control the nanostructure and, consequently, thermoelectric performance. In particular, we use bismuth thiolates to functionalize surfactant-free SnTe particles' surfaces. Upon thermal processing, bismuth thiolates decomposition renders SnTe-Bi2S3 nanocomposites with synergistic functions: 1) carrier concentration optimization by Bi doping; 2) Seebeck coefficient enhancement and bipolar effect suppression by energy filtering; and 3) lattice thermal conductivity reduction by small grain domains, grain boundaries and nanostructuration. Overall, the SnTe-Bi2S3 nanocomposites exhibit peak z T up to 1.3 at 873 K and an average z T of ≈0.6 at 300-873 K, which is among the highest reported for solution-processed SnTe.
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Affiliation(s)
- Cheng Chang
- Institute of Science and Technology AustriaAm Campus 13400KlosterneuburgAustria
| | - Yu Liu
- Institute of Science and Technology AustriaAm Campus 13400KlosterneuburgAustria
| | - Seung Ho Lee
- Institute of Science and Technology AustriaAm Campus 13400KlosterneuburgAustria
| | | | | | - Tobias Kleinhanns
- Institute of Science and Technology AustriaAm Campus 13400KlosterneuburgAustria
| | - Tommaso Costanzo
- Institute of Science and Technology AustriaAm Campus 13400KlosterneuburgAustria
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)CSIC, and BIST08193Barcelona, CataloniaSpain
- ICREAPg. Lluís Companys 2308010Barcelona, CataloniaSpain
| | - Richard L. Brutchey
- Department of ChemistryUniversity of Southern CaliforniaLos AngelesCA 90089USA
| | - Maria Ibáñez
- Institute of Science and Technology AustriaAm Campus 13400KlosterneuburgAustria
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