1
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Zhang J, Liu Y, Gao Q, Xu K, Xu Z, Hao W, Hu Z, Zhuang J, Du Y. Epitaxial Growth of Monolayer SnP 3 with High Mobility and Chiral Boundary Junctions. J Phys Chem Lett 2024:6927-6934. [PMID: 38935845 DOI: 10.1021/acs.jpclett.4c01195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Two-dimensional materials with layered structures, appropriate band gaps, and high carrier mobility have attracted tremendous interest for their potential applications. Here we report the growth of monolayer SnP3 on Au(111) surfaces by molecular beam epitaxy. The kinetic processes for the growth and the crystalline properties are studied by scanning tunneling microscopy. The weak interaction between SnP3 and its Au(111) substrate is signified by the random crystal orientation distributions of SnP3 nanosheets. The electronic structures exhibit a band gap of ∼0.25 eV and high charge carrier mobility comparable to that of black phosphorus engineered by compressive strain. Additionally, domain boundary junctions with opposite chirality are observed, resulting from the strained film in the epitaxial growth process. Our work provides a method to fabricate high-quality monolayer SnP3 and suggests that the monolayer SnP3 is a promising candidate for applications in nanoelectronics and optoelectronics.
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Affiliation(s)
- Jingwei Zhang
- School of Physics, Beihang University, Haidian District, Beijing 100191, China
| | - Yani Liu
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Qian Gao
- School of Physics, Nankai University, Tianjin 300071, China
| | - Kang Xu
- College of Physics and Electronic Information, Dezhou University, Dezhou 253023, China
| | - Zhongfei Xu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Weichang Hao
- School of Physics, Beihang University, Haidian District, Beijing 100191, China
| | - Zhenpeng Hu
- School of Physics, Nankai University, Tianjin 300071, China
| | - Jincheng Zhuang
- School of Physics, Beihang University, Haidian District, Beijing 100191, China
| | - Yi Du
- School of Physics, Beihang University, Haidian District, Beijing 100191, China
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2
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Chen X, Wang G, Li B, Wang N. Strain-Driven High Thermal Conductivity in Hexagonal Boron Phosphide Monolayer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 38299976 DOI: 10.1021/acs.langmuir.3c03472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Two-dimensional graphenelike material, hexagonal boron phosphide (h-BP), is a promising candidate for electronic and optoelectronic devices because of its suitable band gap and high carrier mobility. Especially from the ultrahigh lattice thermal conductivity (κl), it exhibits great potential to solve the challenges of future thermal management applications. Here, the excellent lattice thermal transport properties of the h-BP monolayer are systematically analyzed at the atomic level based on the first-principles method. The results show that the ultrahigh κl value of the h-BP monolayer is attributed to its high phonon group velocity and long phonon lifetime and the strong phonon hydrodynamic effect. We further explore the influence of the tensile strain on the thermal transport properties of the h-BP monolayer. As the strain increases from 0 to 8%, the κl value shows a trend of first increasing and then decreasing due to the coeffect of strain-driven changes for phonon harmonicity and anharmonicity. Under a strain of 6%, the κl value of the h-BP monolayer is as high as 795 W/mK at 300 K, which is about 2.22 times larger than that of 357 W/mK without strain. Such a significant increase in the κl value is mainly due to the increased phonon group velocity and decreased Grüneisen parameter caused by strain. This work is helpful to understand the critical role of tensile strain in lattice thermal transport of two-dimensional graphenelike materials. It is conducive to promoting the thermal management application of the h-BP monolayer.
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Affiliation(s)
- Xihao Chen
- School of Materials Science and Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Guangzhao Wang
- Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology of Chongqing, School of Electronic Information Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Bingke Li
- Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang 473004, China
| | - Ning Wang
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
- Chongqing Key Laboratory of Precision Optics, Chongqing Institute of East China Normal University, Chongqing 401120, China
- School of Science, Key Laboratory of High Performance Scientific Computation, Xihua University, Chengdu 610039, China
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3
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Ji Y, Chen X, Sun Z, Shen C, Wang N. The intrinsically low lattice thermal conductivity of monolayer T-Au 6X 2 (X = S, Se and Te). Phys Chem Chem Phys 2023; 25:31781-31790. [PMID: 37965932 DOI: 10.1039/d3cp03580h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Thermal conductivity (κ, which consists of electronic thermal conductivity κe and lattice thermal conductivity κl), as an essential parameter in thermal management applications, is a critical physical quantity to measure the heat transfer performance of materials. To seek low-κ materials for heat-related applications, such as thermoelectric materials and thermal barrier coatings. In this study, based on a complex cluster design, we report a new class of two-dimensional (2D) transition metal dichalcogenides (TMDs): T-Au6X2 (X = S, Se, and Te) with record ultralow κl values. At room temperature, the κl values of T-Au6S2, T-Au6Se2, and T-Au6Te2 are 0.25 (0.23), 0.30 (0.21), and 0.12 (0.10) W m-1 K-1 along the x-axis (y-axis) direction, respectively, exhibiting good thermal insulation. The ultralow κl originates from strong phonon softening and suppression, especially for the phonon with frequency 0-1 THz. In addition, T-Au6Te2 holds the lowest group velocity and phonon relaxation time among the three T-Au6X2 monolayers. Our study provides an alternative approach for achieving ultralow κl through complex cluster replacement. Meanwhile, this new class of TMDs is expected to shine in thermal insulation and thermoelectricity due to their ultralow κl values.
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Affiliation(s)
- Yupin Ji
- School of Science, Key Laboratory of High-Performance Scientific Computation, Xihua University, Chengdu, 610039, China.
| | - Xihao Chen
- School of Materials Science and Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Zhehao Sun
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Chen Shen
- Institute of Materials Science, Technical University of Darmstadt, Darmstadt, 64287, Germany.
| | - Ning Wang
- School of Science, Key Laboratory of High-Performance Scientific Computation, Xihua University, Chengdu, 610039, China.
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4
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Lan P, Miao N, Gan Y, Peng L, Han S, Zhou J, Sun Z. High-Throughput Computational Design of 2D Ternary Chalcogenides for Sustainable Energy. J Phys Chem Lett 2023; 14:10489-10498. [PMID: 37967465 DOI: 10.1021/acs.jpclett.3c02486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
Two-dimensional materials are considered to be promising for next-generation electronic and energy devices. However, the limited availability of 2D materials hinders their applications. Herein, we employed high-throughput computation to discover new 2D materials by cleaving the bulk and to investigate their electronic, thermoelectric, and optoelectronic properties. Using our database containing 810 structures of chalcogenides ABX3 (A or B = Al, Ga, In, Si, Ge, Sn, P, As, Sb, and Bi; X = S, Se, and Te), we identified 204 new 2D compounds promising for experimental preparation according to the exfoliation energy. Notably, 96 of them are more easily exfoliated than graphene, 52 compounds show higher Seebeck coefficients than Bi2Te3 at 300 K, and 20 compounds have power factors beyond 2 × 10-3 Wm-1 K-2 at 900 K. Also, 6 new compounds exhibit high theoretical photovoltaic efficiency exceeding 30%. Our findings expand the 2D materials family and provide new 2D compounds for sustainable thermoelectric and optoelectronic energy applications.
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Affiliation(s)
- Penghua Lan
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Naihua Miao
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Yu Gan
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Liyu Peng
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Siyu Han
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Jian Zhou
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Zhimei Sun
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
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5
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Lin JH, Zhang T, Zhang T. Super-high carrier mobilities and excellent thermoelectric performances of Tri-Tri group-VA monolayers. Phys Chem Chem Phys 2023; 25:30934-30948. [PMID: 37937400 DOI: 10.1039/d3cp03345g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
High-performance thermoelectric materials in theoretical and experimental research are mostly composed of expensive, scarce, heavy elements and rarely of single light elements, which severely limit their application and development. Based on density functional and semiclassical Boltzmann transport theory, we determine that a stable phosphorene allotrope, named Tri-Tri phosphorene, has super-high electron mobility (23845.29 cm2 V-1 s-1) much higher than those of most two-dimension materials. Moreover, its optimized maximum ZT can reach up to 3.43 at room temperature (4.83 at 500 K and 5.92 at 700 K), exhibiting highly favorable prospects in practical thermoelectric systems. Motivated by the excellent properties of Tri-Tri phosphorene, we further demonstrate the structural stability of Tri-Tri arsenene and Tri-Tri antimonene and predict that the two Tri-Tri structures also have high Seebeck coefficients and electron mobilities. Their lattice thermal conductivities are dramatically decreased compared with Tri-Tri phosphorene. Thus, their predicted thermoelectric performances are also excellent, with maximum ZT values of 4.12 (Tri-Tri arsenene) and 3.54 (Tri-Tri antimonene) at room temperature. The low layer moduli of the three Tri-Tri structures indicate that they have high mechanical flexibility and suitability for current device assemblies. All these desirable properties make Tri-Tri group-VA materials promising for future applications in thermoelectric devices.
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Affiliation(s)
- Jia-He Lin
- School of Science, Jimei University, Xiamen 361021, China
| | - Tie Zhang
- School of Physics and Electronic Engineering, Sichuan Normal University, Chengdu 610066, China.
| | - Tian Zhang
- School of Physics and Electronic Engineering, Sichuan Normal University, Chengdu 610066, China.
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6
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Zhang K, Yang R, Sun Z, Chen X, Huang S, Wang N. Layer-dependent excellent thermoelectric materials: from monolayer to trilayer tellurium based on DFT calculation. Front Chem 2023; 11:1295589. [PMID: 37901161 PMCID: PMC10602905 DOI: 10.3389/fchem.2023.1295589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 09/27/2023] [Indexed: 10/31/2023] Open
Abstract
Monoelemental two-dimensional (2D) materials, which are superior to binary and ternary 2D materials, currently attract remarkable interest due to their fascinating properties. Though the thermal and thermoelectric (TE) transport properties of tellurium have been studied in recent years, there is little research about the thermal and TE properties of multilayer tellurium with interlayer interaction force. Herein, the layer modulation of the phonon transport and TE performance of monolayer, bilayer, and trilayer tellurium is investigated by first-principles calcuations. First, it was found that thermal conductivity as a function of layer numbers possesses a robust, unusually non-monotonic behavior. Moreover, the anisotropy of the thermal transport properties of tellurium is weakened with the increase in the number of layers. By phonon-level systematic analysis, we found that the variation of phonon transport under the layer of increment was determined by increasing the phonon velocity in specific phonon modes. Then, the TE transport properties showed that the maximum figure of merit (ZT) reaches 6.3 (p-type) along the armchair direction at 700 K for the monolayer and 6.6 (p-type) along the zigzag direction at 700 K for the bilayer, suggesting that the TE properties of the monolayer are highly anisotropic. This study reveals that monolayer and bilayer tellurium have tremendous opportunities as candidates in TE applications. Moreover, further increasing the layer number to 3 hinders the improvement of TE performance for 2D tellurium.
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Affiliation(s)
- Kexin Zhang
- Air Traffic Control and Navigation College, Air Force Engineering University, Xi’an, China
| | - Rennong Yang
- Air Traffic Control and Navigation College, Air Force Engineering University, Xi’an, China
| | - Zhehao Sun
- Research School of Chemistry, Australian National University, Canberra, ACT, Australia
| | - Xihao Chen
- School of Materials Science and Engineering, Chongqing University of Arts and Sciences, Chongqing, China
| | - Sizhao Huang
- School of Science, Harbin University of Science and Technology, Harbin, China
| | - Ning Wang
- Key Laboratory of High-Performance Scientific Computation, School of Science, Xihua University, Chengdu, China
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, China
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7
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Qin X, Cui H, Zhou Q. Physisorption Behaviors of Organochlorine Pesticides on the InP 3 Monolayer from Theoretical Insight. ACS OMEGA 2023; 8:32168-32175. [PMID: 37692222 PMCID: PMC10483652 DOI: 10.1021/acsomega.3c04665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 08/08/2023] [Indexed: 09/12/2023]
Abstract
Dichlorodiphenyltrichloroethane (DDT), hexachlorocyclohexane (BHC), aldrin, and chlordimeform are ubiquitous organochlorine pesticide (OCP) residues in the environment, which pose a great threat to human health and ecosystems due to their high toxicity and easy accumulation. Based on the density functional theory (DFT) calculations, a two-dimensional InP3 monolayer was selected as a sensing material to study the sensitivity detection and adsorption behaviors toward BHC, aldrin, chlordimeform, and DDT. The calculation results show that four pesticide molecules are adsorbed on the InP3 surface by physical interaction. The identified response values (69.1, -43.1%) for DDT and chlordimeform reveal the potential of the InP3 monolayer as a sensing material for the detection of these two pesticides, accompanied by the achievement of cyclic utilization by heating to 498 K. The most satisfactory result is the adsorption of BHC, owing to the admirable sensing response (62.7%) and short recovery time (1.8 s) at room temperature, which makes InP3 a promising pesticide sensor for BHC. However, the InP3 surface is unsuitable for aldrin sensing due to poor response (-1.9%). Our work gives theoretical insight into the good sensitivity and recycling of the InP3 monolayer as a new pesticide sensor to detect DDT, BHC, and chlordimeform, which further broadens the application prospect of the InP3 nanosheet into the sensitive detection of organochlorine pesticides in the ecological environment.
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Affiliation(s)
- Xin Qin
- Hunan
Key Laboratory of the Research and Development of Novel Pharmaceutical
Preparations, The Hunan Provincial University Key Laboratory of the
Fundamental and Clinical Research on Functional Nucleic Acid, Changsha Medical University, Changsha 410219, P.R. China
| | - Hao Cui
- College
of Artificial Intelligence, Southwest University, Chongqing 400715, P.R. China
| | - Qiulan Zhou
- Hunan
Key Laboratory of the Research and Development of Novel Pharmaceutical
Preparations, The Hunan Provincial University Key Laboratory of the
Fundamental and Clinical Research on Functional Nucleic Acid, Changsha Medical University, Changsha 410219, P.R. China
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8
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Huang SZ, Fang CG, Guo JX, Wang BY, Yang HD, Feng QY, Li B, Xiang X, Zu XT, Deng HX. Boosting thermoelectric performance of HfSe 2 monolayer by selectivity chemical adsorption. J Colloid Interface Sci 2023; 639:14-23. [PMID: 36804787 DOI: 10.1016/j.jcis.2023.02.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/29/2023] [Accepted: 02/10/2023] [Indexed: 02/13/2023]
Abstract
In this work, a strategy to boosting thermoelectric (TE) performance of 2D materials is explored. We find that, appropriate chemical adsorption of atoms can effectively increase the TE performance of HfSe2 monolayer. Our results show that the adsorption of Ni atom on HfSe2 monolayer (Ni-HfSe2) can improve the optimal power factor PF and ZT at 300 K, increased by more than ∼67% and ∼340%, respectively. The PF and ZT of Ni-HfSe2 at 300 K can reach 85.06 mW m-1 K-2 and 3.09, respectively. The detailed study reveal that the adsorption of Ni atom can induce additional conductional channels of electrons, enhance the coupling of acoustic-optical phonons and the phonon anharmonicity, resulting in an obvious increment of electrical conductivity (increased by more than ∼89%) in n-type doped system and an ultralow phonon thermal conductivity (1.17 W/mK at 300 K). The high electrical conductivity and ultralow phonon thermal conductivity results in the significant increments of PF and ZT. Our study also shows that, Ni-HfSe2 is a thermal, dynamic and mechanical stable structure, which can be employed in TE application. Our research indicates that selectivity chemical adsorption is a promising way to increase TE performance of 2D materials.
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Affiliation(s)
- Si-Zhao Huang
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Cheng-Ge Fang
- China Academy of Launch Vehicle Technology, Beijing 10076, China
| | - Jia-Xing Guo
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Bi-Yi Wang
- Science and Technology on Electro-Optical Information Security Control Laboratory, Tianjin 300308, China
| | - Hong-Dong Yang
- Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Qing-Yi Feng
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Bo Li
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Xia Xiang
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Xiao-Tao Zu
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Hong-Xiang Deng
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China.
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9
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Li B, Zhang C, Sun Z, Han T, Zhang X, Du J, Wang J, Xiao X, Wang N. The potential thermoelectric material Tl 3XSe 4 (X = V, Ta, Nb): a first-principles study. Phys Chem Chem Phys 2022; 24:24447-24456. [PMID: 36190779 DOI: 10.1039/d2cp00358a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Searching for materials with a high thermoelectric figure of merit (ZT) has always been the goal of scientific researchers in the energy field. Here, we combine first-principles calculations to obtain the thermoelectric characteristics of Tl3XSe4 (X = V, Nb, or Ta). First, we compared the phonon thermal transport characteristics of Tl3XSe4 by solving the Boltzmann transport equation and calculated the thermal conductivity. After that, we obtained the thermoelectric properties of Tl3XSe4 through the relaxation time approximation theory. The results show that Tl3XSe4 has a high Seebeck coefficient, high electrical conductivity, high power factor (PF) and low thermal conductivity contributed by both phonons and electrons. At the same time, the ZT value of Tl3XSe4 shows that it is a potential thermoelectric material with excellent performance. This work demonstrates the thermoelectric transport characteristics of Tl3XSe4 to explore its potential applications in many other fields of thermoelectricity and energy.
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Affiliation(s)
- Bingke Li
- Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang 473004, P. R. China
| | - Chenghua Zhang
- School of Basic Medical Sciences, North Sichuan Medical College, Nanchong 637007, P. R. China
| | - Zhehao Sun
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Tao Han
- Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, College of Chemistry and Life Science, Chengdu Normal University, Chengdu 611130, P. R. China
| | - Xiang Zhang
- Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang 473004, P. R. China
| | - Jia Du
- Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang 473004, P. R. China
| | - Jiexue Wang
- Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, College of Chemistry and Life Science, Chengdu Normal University, Chengdu 611130, P. R. China
| | - Xiuchan Xiao
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 611130, P. R. China.
| | - Ning Wang
- School of Science, Key Laboratory of High Performance Scientific Computation, Xihua University, Chengdu 610039, China.
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Jiang J, Lu S, Ouyang Y, Chen J. How Hydrodynamic Phonon Transport Determines the Convergence of Thermal Conductivity in Two-Dimensional Materials. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2854. [PMID: 36014717 PMCID: PMC9415093 DOI: 10.3390/nano12162854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/13/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
The phonon Boltzmann transport equation combined with first-principles calculation has achieved great success in exploring the lattice thermal conductivity (κ) of various materials. However, the convergence of the predicted κ is a critical issue, leading to quite scattered results recorded in the literature, even for the same material. In this paper, we explore the origin for the convergence of thermal conductivity in two-dimensional (2D) materials. Two kinds of typical 2D materials, graphene and silicene, are studied, and the bulk silicon is also compared as a control system for a three-dimensional material. The effect of the cutoff radius (rc) in the third-order interatomic force constants on κ is studied for these three materials. It is found that that κ of these three materials exhibits diverse convergence behaviors with respect to rc, which coincides very well with the strength of hydrodynamic phonon transport. By further analyzing the phonon lifetime and scattering rates, we reveal that the dominance of the normal scattering process gives rise to the hydrodynamic phonon transport in both graphene and silicene, which results in long-range interaction and a large lifetime of low-frequency flexural acoustic phonons, while the same phenomenon is absent in bulk silicon. Our study highlights the importance of long-range interaction associated with hydrodynamic phonon transport in determining the thermal conductivity of 2D materials.
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11
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Theoretical Prediction of the Monolayer Hf 2Br 4 as Promising Thermoelectric Material. MATERIALS 2022; 15:ma15124120. [PMID: 35744181 PMCID: PMC9227607 DOI: 10.3390/ma15124120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/02/2022] [Accepted: 06/07/2022] [Indexed: 11/16/2022]
Abstract
The stability, electronic structure, electric transport, thermal transport and thermoelectric properties of the monolayer Hf2Br4 are predicted by using first principle calculations combined with Boltzmann transport theory. The dynamic stability of the monolayer Hf2Br4 is verified by phonon band dispersion, and the thermal stability is revealed by ab initio molecular dynamics simulations. The electronic structure calculation indicates that the monolayer Hf2Br4 is an indirect band gap semiconductor with a band gap of 1.31 eV. The lattice thermal conductivity of the monolayer Hf2Br4 is investigated and analyzed on phonon mode level. The calculation results of the electric transport explore the excellent electric transport properties of the monolayer Hf2Br4. The thermoelectric transport properties as a function of carrier concentration at three different temperatures are calculated. The study indicates that the monolayer Hf2Br4 can be an alternative, stable two-dimensional material with potential application in the thermoelectric field.
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12
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Fan Q, Yang J, Qi H, Yu L, Qin G, Sun Z, Shen C, Wang N. Anisotropic thermal and electrical transport properties induced high thermoelectric performance in an Ir 2Cl 2O 2 monolayer. Phys Chem Chem Phys 2022; 24:11268-11277. [PMID: 35481990 DOI: 10.1039/d1cp04971b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In recent years, the energy crisis and global warming have been urgent problems that need to be solved. As is known, thermoelectric (TE) materials can transfer heat energy to electrical energy without air pollution. High-throughput calculations as a novel approach are adopted by screening promising TE materials. In this paper, we use first-principles calculations combined with the semiclassical Boltzmann transport theory to estimate the TE performance of monolayer Ir2Cl2O2 according to the prediction that Ir2Cl2O2 has potential as a good TE material via high-throughput calculations. The low thermal conductivities of 1.73 and 4.68 W mK-1 of Ir2Cl2O2 along the x- and y-axes are calculated, respectively, which exhibits the strong anisotropy caused by the difference in group velocities of low-frequency phonon modes. Then, the electronic transport properties are explored, and the figure of merit ZT is eventually obtained. The maximum ZT value reaches 2.85 (0.40) along the x-axis (y-axis) at 700 K, revealing that the TE properties of the Ir2Cl2O2 monolayer are highly anisotropic. This work reveals that the anisotropic layer Ir2Cl2O2 exhibits high TE performance, which confirms that it is feasible to screen excellent TE materials via high-throughput calculations.
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Affiliation(s)
- Qiang Fan
- School of Electronic and Material Engineering, Leshan Normal University, Leshan 614004, Sichuan, P. R. China
| | - Jianhui Yang
- School of Mathematics and Physics, Leshan Normal University, Leshan 614004, Sichuan, P. R. China
| | - Hangbo Qi
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
| | - Linfeng Yu
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Guangzhao Qin
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Zhehao Sun
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Chen Shen
- Institute of Materials Science, Technical University of Darmstadt, Darmstadt 64287, Germany
| | - Ning Wang
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
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13
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Wang M, Han D. Thermal Properties of 2D Dirac Materials MN 4 (M = Be and Mg): A First-Principles Study. ACS OMEGA 2022; 7:10812-10819. [PMID: 35382343 PMCID: PMC8973105 DOI: 10.1021/acsomega.2c00785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/02/2022] [Indexed: 06/14/2023]
Abstract
Recently, a novel two-dimensional (2D) Dirac material BeN4 monolayer has been fabricated experimentally through high-pressure synthesis. In this work, we investigate the thermal properties of a new class of 2D materials with a chemical formula of MN4 (M = Be and Mg) using first-principles calculations. First, the cohesive energy and phonon dispersion curve confirm the dynamical stability of BeN4 and MgN4 monolayers. Besides, BeN4 and MgN4 monolayers have the anisotropic lattice thermal conductivities of 842.75 (615.97) W m-1 K-1 and 52.66 (21.76) W m-1 K-1 along the armchair (zigzag) direction, respectively. The main contribution of the lattice thermal conductivities of BeN4 and MgN4 monolayers are from the low frequency phonon branches. Moreover, the average phonon heat capacity, phonon group velocity, and phonon lifetime of BeN4 monolayer are 3.54 × 105 J K-1 m-3, 3.61 km s-1, and 13.64 ps, which are larger than those of MgN4 monolayer (3.42 × 105 J K-1 m-3, 3.27 km s-1, and 1.70 ps), indicating the larger lattice thermal conductivities of BeN4 monolayer. Furthermore, the mode weighted accumulative Grüneisen parameters (MWGPs) of BeN4 and MgN4 monolayers are 2.84 and 5.62, which proves that MgN4 monolayer has stronger phonon scattering. This investigation will enhance an understanding of thermal properties of MN4 monolayers and drive the applications of MN4 monolayers in nanoelectronic devices.
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Affiliation(s)
- Man Wang
- Institute
of Thermal Science and Technology, Shandong
University, Jinan, 250061, China
| | - Dan Han
- College
of Electrical, Energy and Power Engineering, Yangzhou University, Yangzhou, 225127, China
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14
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Xie QY, Ma JJ, Liu QY, Liu PF, Zhang P, Zhang KW, Wang BT. Low thermal conductivity and high performance anisotropic thermoelectric properties of XSe (X = Cu, Ag, Au) monolayers. Phys Chem Chem Phys 2022; 24:7303-7310. [PMID: 35262117 DOI: 10.1039/d1cp05708a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Combining density functional theory (DFT) and semi-classic Boltzmann transport theory, we report the thermoelectric (TE) performance of a family of two-dimensional (2D) group IB-selenides XSe (X = Cu, Ag, Au). The results show that these monolayers exhibit small and anisotropic phonon velocities (0.98-3.84 km s-1), large Grüneisen parameters (up to 100), and drastic phonon scattering between the optical and acoustic phonons. These intrinsic properties originate from strong phonon anharmonicity and suppress the heat transport capacity, resulting in low lattice thermal conductivities (12.54 and 1.22 W m-1 K-1) along the x- and y-directions for a CuSe monolayer. Among our studied monolayers, the 2D CuSe monolayer possesses the most remarkable TE performance with ultrahigh ZT (3.26) for n-type doping along the y-direction at 300 K. CuSe monolayer can achieve higher thermoelectric conversion efficiency at a lower synthetic preparation cost than the expensive AgSe and AuSe monolayers, and our work provides a theoretical basis for paving the way for further experimental studies.
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Affiliation(s)
- Qing-Yu Xie
- School of Physics and Optoelectronics, Xiangtan University, Hunan 411105, China. .,Institute of High Energy Physics, Chinese Academy of Science (CAS), Beijing 100049, China.
| | - Jiang-Jiang Ma
- Institute of High Energy Physics, Chinese Academy of Science (CAS), Beijing 100049, China. .,Spallation Neutron Source Science Center (SNSSC), Dongguan 523803, China
| | - Qing-Yi Liu
- School of Physics and Optoelectronics, Xiangtan University, Hunan 411105, China. .,Institute of High Energy Physics, Chinese Academy of Science (CAS), Beijing 100049, China.
| | - Peng-Fei Liu
- Institute of High Energy Physics, Chinese Academy of Science (CAS), Beijing 100049, China. .,Spallation Neutron Source Science Center (SNSSC), Dongguan 523803, China
| | - Pei Zhang
- School of Physics and Optoelectronics, Xiangtan University, Hunan 411105, China.
| | - Kai-Wang Zhang
- School of Physics and Optoelectronics, Xiangtan University, Hunan 411105, China.
| | - Bao-Tian Wang
- Institute of High Energy Physics, Chinese Academy of Science (CAS), Beijing 100049, China. .,Spallation Neutron Source Science Center (SNSSC), Dongguan 523803, China.,Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
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15
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Singh J, Jakhar M, Kumar A. Stability, optoelectronic and thermal properties of two-dimensional Janus α-Te 2S. NANOTECHNOLOGY 2022; 33:215405. [PMID: 35158350 DOI: 10.1088/1361-6528/ac54e1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 02/14/2022] [Indexed: 06/14/2023]
Abstract
Motivated by recent progress in the two-dimensional (2D) materials of group VI elements and their experimental fabrication, we have investigated the stability, optoelectronic and thermal properties of Janusα-Te2S monolayer using first-principles calculations. The phonon dispersion and MD simulations confirm its dynamical and thermal stability. The moderate band gap (∼1.5 eV), ultrahigh carrier mobility (∼103cm2V-1s-1), small exciton binding energy (0.26 eV), broad optical absorption range and charge carrier separation ability due to potential difference (ΔV = 1.07 eV) on two surfaces of Janusα-Te2S monolayer makes it a promising candidate for solar energy conversion. We propose various type-II heterostructures consisting of Janusα-Te2S and other transition metal dichalcogenides for solar cell applications. The calculated power conversion efficiencies of the proposed heterostructures, i.e.α-Te2S/T-PdS2,α-Te2S/BP andα-Te2S/H-MoS2are ∼21%, ∼19% and 18%, respectively. Also, the ultralow value of lattice thermal conductivity (1.16 W m-1K-1) of Janusα-Te2S makes it a promising material for the fabrication of next-generation thermal energy conversion devices.
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Affiliation(s)
- Jaspreet Singh
- Department of Physics, Central University of Punjab, VPO Ghudda, Bathinda, 151401, India
| | - Mukesh Jakhar
- Department of Physics, Central University of Punjab, VPO Ghudda, Bathinda, 151401, India
| | - Ashok Kumar
- Department of Physics, Central University of Punjab, VPO Ghudda, Bathinda, 151401, India
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16
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Wu CW, Zhou WX, Xie G, Chen XK, Wu D, Fan ZQ. Enhancement of thermoelectric performance in graphenylene nanoribbons by suppressing phonon thermal conductance: the role of phonon local resonance. NANOTECHNOLOGY 2022; 33:215402. [PMID: 35130521 DOI: 10.1088/1361-6528/ac5288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
Based on the method of non-equilibrium Green's function, we investigate the thermal transport and thermoelectric properties of graphenylene nanoribbons (GRNRs) with different width and chirality. The results show that the thermoelectric (TE) performance of GRNRs significantly increases with decreasing ribbon width, which stems from the reduction of thermal conductance. In addition, by changing the ribbon width and chirality, the figure of merit (ZT) can be controllably manipulated and maximized up to 0.45 at room temperature. Moreover, it is found that theZTvalue of GRNRs with branched structure can reach 1.8 at 300 K and 3.4 at 800 K owing to the phonon local resonance. Our findings here are of great importance for thermoelectric applications of GRNRs.
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Affiliation(s)
- Cheng-Wei Wu
- School of Materials Science and Engineering & Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion, Hunan University of Science and Technology, Xiangtan 411201, People's Republic of China
| | - Wu-Xing Zhou
- School of Materials Science and Engineering & Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion, Hunan University of Science and Technology, Xiangtan 411201, People's Republic of China
| | - Guofeng Xie
- School of Materials Science and Engineering & Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion, Hunan University of Science and Technology, Xiangtan 411201, People's Republic of China
| | - Xue-Kun Chen
- School of Mathematics and Physics, University of South China, Hengyang 421001, People's Republic of China
| | - Dan Wu
- Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, School of Physics and Electronic Science, Changsha University of Science and Technology, Changsha 410114, People's Republic of China
| | - Zhi-Qiang Fan
- Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, School of Physics and Electronic Science, Changsha University of Science and Technology, Changsha 410114, People's Republic of China
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17
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Chen YT, Gong PL, Ren YT, Hu L, Zhang H, Wang JL, Huang L, Shi XQ. Interlayer Quasi-Bonding Interactions in 2D Layered Materials: A Classification According to the Occupancy of Involved Energy Bands. J Phys Chem Lett 2021; 12:11998-12004. [PMID: 34890200 DOI: 10.1021/acs.jpclett.1c03332] [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
Recent studies have revealed that the interlayer interaction in two-dimensional (2D) layered materials is not simply of van der Waals character but could coexist with quasi-bonding character. Herein, we classify the interlayer quasi-bonding interactions into two main categories (I: homo-occupancy interaction; II: hetero-occupancy interaction) according to the occupancy of the involved energy bands near the Fermi level. We then investigate the quasi-bonding-interaction-induced band structure evolution of several representative 2D materials based on density functional theory calculations. Further calculations confirm that this classification is applicable to generic 2D layered materials and provide a unified understanding of the total strength of interlayer interaction, which is a synergetic effect of the van der Waals attraction and the quasi-bonding interaction. The latter is stabilizing in main category II and destabilizing in main category I. Thus, the total interlayer interaction strength is relatively stronger in category II and weaker in category I.
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Affiliation(s)
- Yuan-Tao Chen
- Key Laboratory of Optic-Electronic Information and Materials of Hebei Province, Institute of Life Science and Green Development, College of Physics Science and Technology, Hebei University, Baoding 071002, P.R. China
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, P.R. China
| | - Peng-Lai Gong
- Key Laboratory of Optic-Electronic Information and Materials of Hebei Province, Institute of Life Science and Green Development, College of Physics Science and Technology, Hebei University, Baoding 071002, P.R. China
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, P.R. China
| | - Yin-Ti Ren
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, P.R. China
| | - Liang Hu
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, P.R. China
| | - Hu Zhang
- Key Laboratory of Optic-Electronic Information and Materials of Hebei Province, Institute of Life Science and Green Development, College of Physics Science and Technology, Hebei University, Baoding 071002, P.R. China
| | - Jiang-Long Wang
- Key Laboratory of Optic-Electronic Information and Materials of Hebei Province, Institute of Life Science and Green Development, College of Physics Science and Technology, Hebei University, Baoding 071002, P.R. China
| | - Li Huang
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, P.R. China
- Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Shenzhen 518055, P.R. China
| | - Xing-Qiang Shi
- Key Laboratory of Optic-Electronic Information and Materials of Hebei Province, Institute of Life Science and Green Development, College of Physics Science and Technology, Hebei University, Baoding 071002, P.R. China
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18
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Ni Y, Zhang D, Liu X, Wang H, Chen Y, Xia Y, Wang H. Novel two-dimensional beta-XTe (X = Ge, Sn, Pb) as promising room-temperature thermoelectrics. J Chem Phys 2021; 155:204701. [PMID: 34852486 DOI: 10.1063/5.0065578] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In this paper, we designed novel low-symmetry two-dimensional (2D) structures based on conventional XTe (X = Ge, Sn, Pb) thermoelectrics with large average atomic mass. The first-principles calculations combined with Boltzmann transport theory show that the beta-XTe exhibit good stability, high electron carrier mobility, and ultralow ΚL. The subsequent analyses show that the ultralow ΚL stems from the coexistence of resonant bonding, weak bonding, and lone-pair electrons in beta-XTe, which leads to large anharmonicities. On the other hand, the lowest energy conduction band of beta-GeTe and beta-SnTe show the convergence of the low-lying Ʃ band, which is the source of the high-power factor in the two systems. The calculated maximum ZT of beta-XTe (X = Ge, Sn, Pb) are 3.08, 1.60, and 0.57 at 300 K, respectively, which is significantly greater than that of the previously reported high-symmetry 2D alpha-XTe and the commercial thermoelectrics. We hope that this work can provide important guidance for the development of thermoelectric materials.
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Affiliation(s)
- Yuxiang Ni
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
| | - Dingbo Zhang
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
| | - Xin Liu
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
| | - Hui Wang
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
| | - Yuanzheng Chen
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
| | - Yudong Xia
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
| | - Hongyan Wang
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
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19
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Bi S, Sun Z, Yuan K, Chang Z, Zhang X, Gao Y, Tang D. Potential thermoelectric materials: first-principles prediction of low lattice thermal conductivity of two-dimensional (2D) orthogonal ScX 2 (X = C and N) compounds. Phys Chem Chem Phys 2021; 23:23718-23729. [PMID: 34642727 DOI: 10.1039/d1cp03404a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermoelectric materials with excellent performance can efficiently and directly convert waste heat into electrical energy. In today's era, finding thermoelectric materials with excellent performance and adjusting the thermoelectric parameters are essential for the sustainable development of energy in the context of the energy crisis and global warming. Through first-principles calculations, we notice that two-dimensional (2D) orthogonal ScX2 (X = C and N) compounds show great potential in the field of thermoelectricity. Different from most materials containing C or N atoms, which are generally accompanied by high lattice thermal conductivity (TC), the 2D o-ScX2 exhibited a rather low and anisotropic lattice TC. The κ3L (the lattice thermal conductivity including the effect of three-phonon scattering and isotope scattering) of o-ScC2 along the X and Y directions are 2.79 W m-1 K-1 and 1.55 W m-1 K-1, and those of o-ScN2 are 1.57 W m-1 K-1 and 0.56 W m-1 K-1. By calculating the fourth-order interatomic force constants (IFCs), we obtain the κ3+4L with the additional four-phonon scattering effect. Our results clearly show that four-phonon scattering plays an important role in the TC of the two materials, the κ3+4L of o-ScC2 is only half of its κ3L. Furthermore, it can be noticed that the low lattice TCs of o-ScX2 (X = C and N) are the result of many factors, e.g., heavy atom doping, the strong anharmonicity caused by the vibration of Sc atoms in the out-of-plane direction and C(N) atoms in the in-plane direction, important four-phonon scattering and strongly polarized covalent bonds between X atoms and Sc atoms. Moreover, it is interesting to find that the thermal transport properties of o-ScX2 are led by a different phonon mechanism, e.g., the different TCs of o-ScC2 and o-ScN2 are determined by the anharmonic characteristic, and the harmonic characteristic plays a more important role in the anisotropy of o-ScX2 (X = C and N). In general, our research can be expected to provide important guidance for the application of o-ScX2 (X = C and N) in the thermoelectric field.
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Affiliation(s)
- Shipeng Bi
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China.
| | - Zhehao Sun
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China. .,Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Kunpeng Yuan
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China.
| | - Zheng Chang
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China.
| | - Xiaoliang Zhang
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China.
| | - Yufei Gao
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China.
| | - Dawei Tang
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China.
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20
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Excellent Room-Temperature Thermoelectricity of 2D GeP 3: Mexican-Hat-Shaped Band Dispersion and Ultralow Lattice Thermal Conductivity. Molecules 2021; 26:molecules26216376. [PMID: 34770785 PMCID: PMC8587316 DOI: 10.3390/molecules26216376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/15/2021] [Accepted: 10/19/2021] [Indexed: 11/16/2022] Open
Abstract
Although some atomically thin 2D semiconductors have been found to possess good thermoelectric performance due to the quantum confinement effect, most of their behaviors occur at a higher temperature. Searching for promising thermoelectric materials at room temperature is meaningful and challenging. Inspired by the finding of moderate band gap and high carrier mobility in monolayer GeP3, we investigated the thermoelectric properties by using semi-classical Boltzmann transport theory and first-principles calculations. The results show that the room-temperature lattice thermal conductivity of monolayer GeP3 is only 0.43 Wm−1K−1 because of the low group velocity and the strong anharmonic phonon scattering resulting from the disordered phonon vibrations with out-of-plane and in-plane directions. Simultaneously, the Mexican-hat-shaped dispersion and the orbital degeneracy of the valence bands result in a large p-type power factor. Combining this superior power factor with the ultralow lattice thermal conductivity, a high p-type thermoelectric figure of merit of 3.33 is achieved with a moderate carrier concentration at 300 K. The present work highlights the potential applications of 2D GeP3 as an excellent room-temperature thermoelectric material.
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21
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Zhang F, Qiu J, Guo H, Wu L, Zhu B, Zheng K, Li H, Wang Z, Chen X, Yu J. Theoretical investigations of novel Janus Pb 2SSe monolayer as a potential multifunctional material for piezoelectric, photovoltaic, and thermoelectric applications. NANOSCALE 2021; 13:15611-15623. [PMID: 34596184 DOI: 10.1039/d1nr03440e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Two-dimensional Janus nanomaterials, due to their unique electronic, optical, and piezoelectric characteristics resulting from the antisymmetric structures, exhibit great prospects in multifunctional energy application to alleviate the energy crisis. Monolayer Janus Pb2SSe, with a black phosphorus-like structure and an indirect band gap of 1.59 eV as well as high carrier mobility (526-2105 cm2 V-1 s-1), displays outstanding potentials in the energy conversion between nanomechanical energy, solar energy, waste heat, and electricity, which has been comprehensively studied utilizing DFT-based simulations. The research results reveal that monolayer Pb2SSe not only possesses giant in-plane piezoelectricity of d11 = 75.1 pm V-1 but also superhigh out-of-plane piezoelectric coefficients (d31 = 0.5 pm V-1 and d33 = 15.7 pm V-1). Meanwhile, by constructing Pb2SSe bilayers, the out-of-plane piezoelectric coefficients can be significantly enhanced (d31 = 19.2 pm V-1 and d33 = 194.7 pm V-1). In addition, owing to the small conduction band offset, suitable donor band gap and excellent light absorption capability in the Pb2SSe/SnSe (Pb2SSe/GeSe) heterostructure, the power conversion efficiencies were calculated to be up to 20.02% (Pb2SSe/SnSe) and 19.28% (Pb2SSe/GeSe), making it a promising candidate for solar energy collection. Furthermore, from the thermoelectric electron and phonon transport calculations, it can be found that the Pb2SSe monolayer is an n-type thermoelectric material with ultrahigh ZT = 2.19 (1.52) at room temperature, which can be traced back to its ultralow κL = 0.78 (0.99) W m-1 K-1, and superhigh PF = 10.18 (8.25) mW m-1 K-2 along the x(y) direction at the optimal doping concentration at 300 K. The abovementioned versatile characteristics in the Janus Pb2SSe monolayer, along with its comprehensive stabilities (energy, dynamic, thermal, and mechanical stabilities), highlight its potential in clean energy harvesting.
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Affiliation(s)
- Fusheng Zhang
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Jian Qiu
- Faculty of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China
| | - Haojie Guo
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Lingmei Wu
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Bao Zhu
- Faculty of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China
| | - Kai Zheng
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Hui Li
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Zeping Wang
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Xianping Chen
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Jiabing Yu
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
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22
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Wu YY, Wei Q, Zou J, Yang H. Ultra-low thermal conductivity and high thermoelectric performance of monolayer BiP 3: a first principles study. Phys Chem Chem Phys 2021; 23:19834-19840. [PMID: 34525134 DOI: 10.1039/d1cp01383a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The thermoelectric properties of monolayer triphosphide BiP3 are studied via first principles calculations and Boltzmann transport equation. First, the Seebeck coefficient, electrical conductivity and electron thermal conductivity at different temperatures are calculated using the Boltzmann transport equation with relaxation time approximation. It has been observed that BiP3 has a large power factor (265 × 10-4 W K-2 m-1, 700 K). Then, by analyzing the second-order interatomic force constant (IFCS), the atomic structure and phonon dispersion were studied, and the thermal conductivity of monolayer BiP3 was predicted in the temperature range of 300-800 K, and it was found that it had a very low thermal conductivity (2.13 W m-1 K-1) at room temperature. The thermal conductivity is mainly contributed by the branches of acoustics along in-plane transverse (TA). Finally, the maximum ZT value of monolayer BiP3 is 3.06 at 700 K, when the electron doping concentration is 2.35 × 1011 cm-2, which indicates that it is a promising thermoelectric material.
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Affiliation(s)
- Yi-Yuan Wu
- Engineering Research Center of Nuclear Technology Application, Ministry of Education, East China University of Technology, Nanchang 330013, China.,State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, China
| | - Qianglin Wei
- Engineering Research Center of Nuclear Technology Application, Ministry of Education, East China University of Technology, Nanchang 330013, China.,State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, China
| | - Jijun Zou
- Engineering Research Center of Nuclear Technology Application, Ministry of Education, East China University of Technology, Nanchang 330013, China.,State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, China
| | - Hengyu Yang
- School of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China.
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23
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Wei H, Guo J, Yuan X, Ren J. Spin Polarization Properties of Two Dimensional GaP 3 Induced by 3d Transition-Metal Doping. MICROMACHINES 2021; 12:mi12070743. [PMID: 34202878 PMCID: PMC8307802 DOI: 10.3390/mi12070743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 11/16/2022]
Abstract
The electronic structure and spin polarization properties of monolayer GaP3 induced by transition metal (TM) doping were investigated through a first-principles calculation based on density functional theory. The calculation results show that all the doped systems perform spin polarization properties, and the Fe–doped system shows the greatest spin polarization property with the biggest magnetic moment. Based on the analysis from the projected density of states, it was found that the new spin electronic states originated from the p–d orbital couplings between TM atoms and GaP3 lead to spin polarization. The spin polarization results were verified by calculating the spin density distributions and the charge transfer. It is effective to introduce the spin polarization in monolayer GaP3 by doping TM atoms, and our work provides theoretical calculation supports for the applications of triphosphide in spintronics.
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Affiliation(s)
| | | | - Xiaobo Yuan
- Correspondence: (X.Y.); (J.R.); Tel.: +86-531-8618-1557 (J.R.)
| | - Junfeng Ren
- Correspondence: (X.Y.); (J.R.); Tel.: +86-531-8618-1557 (J.R.)
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24
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Duan S, Cui Y, Yi W, Chen X, Yang B, Liu X. Superior Conversion Efficiency Achieved in GeP 3/h-BN Heterostructures as Novel Flexible and Ultralight Thermoelectrics. ACS APPLIED MATERIALS & INTERFACES 2021; 13:18800-18808. [PMID: 33848137 DOI: 10.1021/acsami.1c01860] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
GeP3 materials are attracting broad research interest due to their typical puckered layer structure, high carrier mobility, and chemical stability. This peculiarity expedites the independent control of anisotropic electrical and thermal conductance, which is thus expected to possess great thermoelectric potential. Nevertheless, the metal characteristics of GeP3 in the bulk and thick films are adverse to real application because of the low Seebeck coefficient. Thus, it is highly desirable to explore effective solutions to broaden the band gap and also maintain its excellent electrical conductance. Herein, we designed the interlaced GeP3/hexagonal boron nitride (h-BN) bulk heterostructure using various component thicknesses. By using ab initio calculations based on the Boltzmann transport theory, we found that capping h-BN layer can obviously increase the band gap of the GeP3 layer by 0.24 eV, and more interestingly, the anisotropic electronic structure in the GeP3/h-BN heterostructure was accordingly modulated toward a favorable direction for high thermoelectricity. An ultrahigh ZT value of around 5 was predicted at 300 K in p-type GeP3/h-BN, attributed to the adjusted multivalley band structure. Overall, our work provided an effective route to design novel high-performance thermoelectrics through the appropriate construction of heterostructures.
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Affiliation(s)
- Shuai Duan
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Yangfan Cui
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Wencai Yi
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Xin Chen
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Bingchao Yang
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Xiaobing Liu
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
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Han D, Yang X, Du M, Xin G, Zhang J, Wang X, Cheng L. Improved thermoelectric properties of WS 2-WSe 2 phononic crystals: insights from first-principles calculations. NANOSCALE 2021; 13:7176-7192. [PMID: 33889870 DOI: 10.1039/d0nr09169c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recently, two-dimensional transition metal dichalcogenide (TMDC) monolayers have attracted much attention owing to their excellent physical properties. In the present study, we systematically investigate the thermoelectric properties of different WS2-WSe2 phononic crystals by utilizing first-principles calculations. First, the thermal properties of all phononic crystals with superlattices (SL1 and SL2) and their individual components (WS2 and WSe2) are evaluated, in which the lattice thermal conductivities (kph) of WS2 and WSe2 monolayers present isotropic behaviors, while the values of SL1 and SL2 monolayers reveal weak anisotropic behaviors. It can be observed that the kph values of WS2 and WSe2 monolayers are larger than those of SL1 and SL2 monolayers, which can be attributed to the decreasing phonon group velocity and phonon lifetime. Moreover, we calculate the electronic band structures of all monolayers, indicating that all monolayers are semiconductors. Afterwards, the electrical conductivities, the Seebeck coefficients, the power factors, the electronic thermal conductivities, and the ZT values at different temperatures are evaluated. The ZTmax values of WS2, WSe2, SL1, and SL2 monolayers with p-type doping are 0.43, 0.37, 0.95, and 0.66 at 1000 K. It can be proved that the SL1 monolayer possesses the largest ZT, which is at least two times higher than those of the WS2 and WSe2 monolayer. Finally, we build two kinds of phononic crystals with periodic holes (PCH1 and PCH2) and evaluate the thermoelectric properties. It can be observed that the PCH2 structure shows the best thermoelectric performance. The ZTmax values of the PCH2 structure can reach 2.53 and 4.54 with p-type doping along the x and y directions, which are 2.66 and 6.75 times higher than those of the SL1 monolayer. This work provides a new strategy to obtain higher thermoelectric performance and demonstrates the potential applications of phononic crystals in TMDC-based nanoelectronic devices.
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Affiliation(s)
- Dan Han
- Institute of Thermal Science and Technology, Shandong University, Jinan 250061, Shandong Province, China.
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Lu B, Zheng X, Li Z. Two-Dimensional Lateral Heterostructures of Triphosphides: AlP 3-GaP 3 as a Promising Photocatalyst for Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2020; 12:53731-53738. [PMID: 33205943 DOI: 10.1021/acsami.0c13700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Photocatalytic water splitting to produce hydrogen is a potential means of achieving scalable and economically feasible solar hydrogen production. Two-dimensional (2D) triphosphides are 2D materials with potential applications in photovoltaics and optoelectronics. Here, we theoretically investigated 56 systems in total, including seven monolayer XP3 (X = Al, Ga, Ge, As, In, Sn, and Sb) and their combined vertical and lateral heterostructures. We found that the lateral heterostructure AlP3-GaP3 should be a promising photocatalyst for water splitting, through a quadruple screening process combining free energy calculations. It is fascinating that AlP3-GaP3 ingeniously combines all the desired features for photocatalytic water-splitting reactions, including a nearly direct band gap (1.43 eV), perfect band edge position, high STH efficiency (16.89%), broad light absorption region of sunlight, ultrahigh carrier mobility (20,000 cm2 V-1 s-1), low exciton binding energy (0.33 eV), and excellent stability in a water environment. Moreover, through Gibbs free energy calculations, the active sites and possible reaction pathways of the overall water-splitting reaction by AlP3-GaP3 were also confirmed. Our work offers a strategy for the design and fabrication of novel lateral heterostructures for a high-performance photocatalyst in water-splitting reactions.
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Affiliation(s)
- Baichuan Lu
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Xiaoyan Zheng
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Zesheng Li
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
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