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Tian W, Cheng C, Wang C, Li W. Research Progress on Thermal Conductivity of Graphdiyne Nanoribbons and its Defects: A Review. RECENT PATENTS ON NANOTECHNOLOGY 2020; 14:294-306. [PMID: 32525786 DOI: 10.2174/1872210514666200611094435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/11/2020] [Accepted: 03/07/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Graphdiyne has a unique pi-conjugated structure, perfect pore distribution and adjustable electronic properties of sp2, sp hybrid planar framework. Due to the presence of acetylenic bonds, it has more excellent properties compared to grapheme, such as a unique structure-dependent Dirac cone, abundant carbon bonds and a large bandgap. As one of the important raw materials for nanodevices, it is extremely important to study the thermal properties of graphdiyne nanoribbon. OBJECTIVE This paper mainly introduces and discusses recent academic research and patents on the preparation methods and thermal conductivity of graphdiyne nanoribbons. Besides, the applications in engineering and vacancy defects in the preparation process of graphdiyne are described. METHODS Firstly, taking thermal conductivity as an index, the thermal conductivity of graphdiyne with various vacancy defects is discussed from the aspects of length, defect location and defect type. In addition, the graphdiyne nanoribbons were laterally compared with the thermal conductivity of the graphene nanoribbons. RESULTS The thermal conductivity of graphdiyne with defects increases with the length and width, which is lower than the intrinsic graphdiyne. The thermal conductivity of the acetylene chain lacking one carbon atom is higher than the one lacking the benzene ring. Typically, the thermal conductivity is larger in armchair than that of zigzag in the same size. Moreover the thermal conductivity of nanoribbons with double vacancy defects is lower than those nanoribbons with single vacancy defects, which can also decrease with the increase of temperature and the number of acetylene chains. The thermal conductivity is not sensitive to shear strain. CONCLUSION Due to the unique structure and electronic characteristics, graphdiyne has provoked an extensive research interest in the field of nanoscience. Graphdiyne is considered as one of the most promising materials of next-generation electronic devices.
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Affiliation(s)
- Wenchao Tian
- School of Electro-Mechanical Engineering, Xidian University, No. 2, TaiBai South Road, Xi'an, Shaanxi, 710071, China
| | - Chunmin Cheng
- School of Electro-Mechanical Engineering, Xidian University, No. 2, TaiBai South Road, Xi'an, Shaanxi, 710071, China
| | - Chuqiao Wang
- School of Electro-Mechanical Engineering, Xidian University, No. 2, TaiBai South Road, Xi'an, Shaanxi, 710071, China
| | - Wenhua Li
- School of Electro-Mechanical Engineering, Xidian University, No. 2, TaiBai South Road, Xi'an, Shaanxi, 710071, China
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Yeo J, Jung GS, Martín-Martínez FJ, Beem J, Qin Z, Buehler MJ. Multiscale Design of Graphyne-Based Materials for High-Performance Separation Membranes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1805665. [PMID: 30645772 PMCID: PMC7252433 DOI: 10.1002/adma.201805665] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/18/2018] [Indexed: 06/09/2023]
Abstract
By varying the number of acetylenic linkages connecting aromatic rings, a new family of atomically thin graph-n-yne materials can be designed and synthesized. Generating immense scientific interest due to its structural diversity and excellent physical properties, graph-n-yne has opened new avenues toward numerous promising engineering applications, especially for separation membranes with precise pore sizes. Having these tunable pore sizes in combination with their excellent mechanical strength to withstand high pressures, free-standing graph-n-yne is theoretically posited to be an outstanding membrane material for separating or purifying mixtures of either gases or liquids, rivaling or even dramatically exceeding the capabilities of current, state-of-art separation membranes. Computational modeling and simulations play an integral role in the bottom-up design and characterization of these graph-n-yne materials. Thus, here, the state of the art in modeling α-, β-, γ-, δ-, and 6,6,12-graphyne nanosheets for synthesizing graph-2-yne materials and 3D architectures thereof is discussed. Different synthesis methods are described and a broad overview of computational characterizations of graph-n-yne's electrical, chemical, and thermal properties is provided. Furthermore, a series of in-depth computational studies that delve into the specifics of graph-n-yne's mechanical strength and porosity, which confer superior performance for separation and desalination membranes, are reviewed.
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Affiliation(s)
- Jingjie Yeo
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, USA
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Institute of High Performance Computing, Agency for Science, Technology and Research (A*STAR), Singapore 138632
| | - Gang Seob Jung
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Francisco J. Martín-Martínez
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jennifer Beem
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Zhao Qin
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Markus J. Buehler
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Xue Z, Zhu M, Dong Y, Feng T, Chen Z, Feng Y, Shan Z, Xu J, Meng S. An integrated targeting drug delivery system based on the hybridization of graphdiyne and MOFs for visualized cancer therapy. NANOSCALE 2019; 11:11709-11718. [PMID: 31180099 DOI: 10.1039/c9nr02017a] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Multimodal therapies have been regarded as promising strategies for cancer treatment as compared to conventional drug delivery systems that have various drawbacks in either low loading content, uncontrolled release, non-targeting or biotoxicity. We have developed a multifunctional three-dimensional tumor-targeting drug delivery system, Fe3O4@UIO-66-NH2/graphdiyne (FUGY), based on the hybridization of a novel two-dimensional material, graphdiyne (GDY), with a metal organic framework (MOFs) structure, Fe3O4@UIO-66-NH2 (FU). The FU MOF structure has superior ability for magnetic targeting, and was constructed by an in situ growth method in which it was surface-installed with GDY via amide bonds, as a carrier of anticancer drugs. The anticancer drug doxorubicin (DOX) was loaded onto FUGY and served as both an anticancer drug to treat the tumor and a fluorescence probe to ascertain the location of FUGY. The results show that FUGY exhibits a high drug loading content of 43.8% and an effective drug release around the tumor cells at pH 5.0. In particular, fluorescence imaging demonstrates that FUGY can deliver more anticancer drugs to tumor tissue than conventional drug delivery systems. Furthermore, FUGY exhibits superior therapeutic efficiencies with negligible side effects as compared to the direct administration of free DOX, both in vitro and in vivo. The obtained FUGY drug delivery system possesses ideal biocompatibility, sustained drug release, effective chemotherapeutic efficacy, and specific targeting abilities. Such a multimodal therapeutic system can facilitate new possibilities for multifunctional drug delivery systems.
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Affiliation(s)
- Zhongbo Xue
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300050, P.R. China.
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Wan Y, Xiong S, Ouyang B, Niu Z, Ni Y, Zhao Y, Zhang X. Thermal Transport Engineering in Graphdiyne and Graphdiyne Nanoribbons. ACS OMEGA 2019; 4:4147-4152. [PMID: 31459623 PMCID: PMC6648435 DOI: 10.1021/acsomega.9b00074] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 02/14/2019] [Indexed: 06/10/2023]
Abstract
Understanding the details of thermal transport in graphdiyne and its nanostructures would help to broaden their applications. On the basis of the molecular dynamics simulations and spectrally decomposed heat current analysis, we show that the high-frequency phonons in graphdiyne can be strongly hindered in nanoribbons because of the boundary scattering. The isotropic transport in graphdiyne can be switched to anisotropic along the armchair and zigzag directions. Adding side chains onto the nanoribbon edges further reduces the thermal conductivity (TC) along both armchair and zigzag directions thanks to the reduction of heat current carried by low-frequency modes, a mechanism that arises from the phonon resonances. The uniaxial tensile strain plays a different role in the TC of graphdiyne, armchair nanoribbons, and zigzag nanoribbons. Tensile strain causes the thermal conductivities of graphdiyne, and armchair nanoribbons increase first and then get reduced, whereas for zigzag nanoribbons, the TC decreases with strain first and reaches to a plateau. The different low-frequency phonon response on strain is the main reason for the different TC behavior. For graphdiyne and armchair nanoribbons, the low-frequency heat current is enhanced gradually first and then get reduced with the increase of strain, while that of zigzag nanoribbons decreases with strain and then increases slightly. The current studies could help us understand the phonon transport in graphdiyne and its nanoribbons, which is useful for their TC engineering.
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Affiliation(s)
- Yingchun Wan
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Road, Suzhou, 215123 Jiangsu, P.
R. China
| | - Shiyun Xiong
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Road, Suzhou, 215123 Jiangsu, P.
R. China
| | - Bin Ouyang
- Department
of Materials Science and Engineering, University
of California Berkeley, Berkeley, California 94720, United States
| | - Zhihui Niu
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Road, Suzhou, 215123 Jiangsu, P.
R. China
| | - Yuxiang Ni
- School
of Physical Science and Technology, Key Laboratory of Advanced Technologies
of Materials, Ministry of Education of China, Southwest Jiaotong University, 610031 Chengdu, P.R. China
| | - Yu Zhao
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Road, Suzhou, 215123 Jiangsu, P.
R. China
| | - Xiaohong Zhang
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Road, Suzhou, 215123 Jiangsu, P.
R. China
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Kang J, Wei Z, Li J. Graphyne and Its Family: Recent Theoretical Advances. ACS APPLIED MATERIALS & INTERFACES 2019; 11:2692-2706. [PMID: 29663794 DOI: 10.1021/acsami.8b03338] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Graphyne and its family are new carbon allotropes in 2D form with both sp and sp2 hybridization. Recently, the graphyne with different structures have attracted great attentions from both experimental and theoretical communities, especially because the first successful synthesis of graphdiyne, which is a typical member of the graphyne family. In this review, recent theoretical progresses in the research of the graphyne family are summarized. More specifically, we systematically introduce the structural, mechanical, band, electronic transport, and thermal properties of graphyne and its family, as well as their possible applications, such as gas separation, water desalination and purification, anode material for ion battery, H2 storage, and catalysis application. Several related theoretical methods are also reviewed. The coexistence of sp and sp2 hybridization and the unique atom arrangement of the graphyne family members bring many novel properties and make them promising materials for many potential applications.
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Affiliation(s)
- Jun Kang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & College of Materials Science and Optoelectronic Technology , University of Chinese Academy of Sciences , Beijing 100083 , China
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Zhongming Wei
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & College of Materials Science and Optoelectronic Technology , University of Chinese Academy of Sciences , Beijing 100083 , China
| | - Jingbo Li
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & College of Materials Science and Optoelectronic Technology , University of Chinese Academy of Sciences , Beijing 100083 , China
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6
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Crystal Orbital Study on one-dimensional β-graphyne and its BN-substituted derivatives. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2018.06.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Huang C, Li Y, Wang N, Xue Y, Zuo Z, Liu H, Li Y. Progress in Research into 2D Graphdiyne-Based Materials. Chem Rev 2018; 118:7744-7803. [DOI: 10.1021/acs.chemrev.8b00288] [Citation(s) in RCA: 546] [Impact Index Per Article: 91.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Changshui Huang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P.R. China
| | - Yongjun Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Ning Wang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P.R. China
| | - Yurui Xue
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Zicheng Zuo
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Huibiao Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Yuliang Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
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Cui X, Ouyang T, Li J, He C, Tang C, Zhong J. Enhancing the thermoelectric performance of gamma-graphyne nanoribbons by introducing edge disorder. Phys Chem Chem Phys 2018; 20:7173-7179. [DOI: 10.1039/c7cp08154e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Edge disorder could dramatically improve the thermoelectric performance of gamma-graphyne nanoribbons.
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Affiliation(s)
- Xiao Cui
- Hunan Key Laboratory for Micro – Nano Energy Materials & Device and School of Physics and Optoelectronics
- Xiangtan University
- Xiangtan 411105
- China
| | - Tao Ouyang
- Hunan Key Laboratory for Micro – Nano Energy Materials & Device and School of Physics and Optoelectronics
- Xiangtan University
- Xiangtan 411105
- China
| | - Jin Li
- Hunan Key Laboratory for Micro – Nano Energy Materials & Device and School of Physics and Optoelectronics
- Xiangtan University
- Xiangtan 411105
- China
| | - Chaoyu He
- Hunan Key Laboratory for Micro – Nano Energy Materials & Device and School of Physics and Optoelectronics
- Xiangtan University
- Xiangtan 411105
- China
| | - Chao Tang
- Hunan Key Laboratory for Micro – Nano Energy Materials & Device and School of Physics and Optoelectronics
- Xiangtan University
- Xiangtan 411105
- China
| | - Jianxin Zhong
- Hunan Key Laboratory for Micro – Nano Energy Materials & Device and School of Physics and Optoelectronics
- Xiangtan University
- Xiangtan 411105
- China
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Yang X, Dai Z, Zhao Y, Meng S. Phonon thermal transport in a class of graphene allotropes from first principles. Phys Chem Chem Phys 2018; 20:15980-15985. [DOI: 10.1039/c8cp00987b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Utilizing first principle calculations combined with the phonon Boltzman transport equation (PBTE), we systematically investigate the phonon thermal transport properties of α, β and γ graphyne, a class of graphene allotropes.
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Affiliation(s)
- Xiuxian Yang
- School of Opto-electronic Information Science and Technology
- Yantai University
- Yantai 264005
- People's Republic of China
| | - Zhenhong Dai
- School of Opto-electronic Information Science and Technology
- Yantai University
- Yantai 264005
- People's Republic of China
| | - Yinchang Zhao
- School of Opto-electronic Information Science and Technology
- Yantai University
- Yantai 264005
- People's Republic of China
| | - Sheng Meng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
- Collaborative Innovation Center of Quantum Matter
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Zhang Z, Xie Y, Peng Q, Chen Y. Phonon transport in single-layer boron nanoribbons. NANOTECHNOLOGY 2016; 27:445703. [PMID: 27669055 DOI: 10.1088/0957-4484/27/44/445703] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Inspired by the successful synthesis of three two-dimensional (2D) allotropes, the boron sheet has recently been one of the hottest 2D materials around. However, to date, phonon transport properties of these new materials are still unknown. By using the non-equilibrium Green's function (NEGF) combined with the first principles method, we study ballistic phonon transport in three types of boron sheets; two of them correspond to the structures reported in the experiments, while the third one is a stable structure that has not been synthesized yet. At room temperature, the highest thermal conductance of the boron nanoribbons is comparable with that of graphene, while the lowest thermal conductance is less than half of graphene's. Compared with graphene, the three boron sheets exhibit diverse anisotropic transport characteristics. With an analysis of phonon dispersion, bonding charge density, and simplified models of atomic chains, the mechanisms of the diverse phonon properties are discussed. Moreover, we find that many hybrid patterns based on the boron allotropes can be constructed naturally without doping, adsorption, and defects. This provides abundant nanostructures for thermal management and thermoelectric applications.
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Affiliation(s)
- Zhongwei Zhang
- Department of Physics, Xiangtan University, Xiangtan 411105, Hunan, People's Republic of China
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Ziabari A, Zebarjadi M, Vashaee D, Shakouri A. Nanoscale solid-state cooling: a review. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2016; 79:095901. [PMID: 27519021 DOI: 10.1088/0034-4885/79/9/095901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The recent developments in nanoscale solid-state cooling are reviewed. This includes both theoretical and experimental studies of different physical concepts, as well as nanostructured material design and device configurations. We primarily focus on thermoelectric, thermionic and thermo-magnetic coolers. Particular emphasis is given to the concepts based on metal-semiconductor superlattices, graded materials, non-equilibrium thermoelectric devices, Thomson coolers, and photon assisted Peltier coolers as promising methods for efficient solid-state cooling. Thermomagnetic effects such as magneto-Peltier and Nernst-Ettingshausen cooling are briefly described and recent advances and future trends in these areas are reviewed. The ongoing progress in solid-state cooling concepts such as spin-calorimetrics, electrocalorics, non-equilibrium/nonlinear Peltier devices, superconducting junctions and two-dimensional materials are also elucidated and practical achievements are reviewed. We explain the thermoreflectance thermal imaging microscopy and the transient Harman method as two unique techniques developed for characterization of thermoelectric microrefrigerators. The future prospects for solid-state cooling are briefly summarized.
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Affiliation(s)
- Amirkoushyar Ziabari
- Birck Nanotechnology Center and Electrical and Computer Engineering, Purdue University, West Lafayette, IN, USA
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Zhou S, Guo Y, Zhao J. Enhanced thermoelectric properties of graphene oxide patterned by nanoroads. Phys Chem Chem Phys 2016; 18:10607-15. [PMID: 27035740 DOI: 10.1039/c6cp01012a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The thermoelectric properties of two-dimensional (2D) materials are of great interest for both fundamental science and device applications. Graphene oxide (GO), whose physical properties are highly tailorable by chemical and structural modifications, is a potential 2D thermoelectric material. In this report, we pattern nanoroads on GO sheets with epoxide functionalization, and investigate their ballistic thermoelectric transport properties based on density functional theory and the nonequilibrium Green's function method. These graphene oxide nanoroads (GONRDs) are all semiconductors with their band gaps tunable by the road width, edge orientation, and the structure of the GO matrix. These nanostructures show appreciable electrical conductance at certain doping levels and enhanced thermopower of 127-287 μV K(-1), yielding a power factor 4-22 times of the graphene value; meanwhile, the lattice thermal conductance is remarkably reduced to 15-22% of the graphene value; consequently, attaining the figure of merit of 0.05-0.75. Our theoretical results are not only helpful for understanding the thermoelectric properties of graphene and its derivatives, but also would guide the theoretical design and experimental fabrication of graphene-based thermoelectric devices of high performance.
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Affiliation(s)
- Si Zhou
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China.
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Zhang Z, Xie Y, Peng Q, Chen Y. A theoretical prediction of super high-performance thermoelectric materials based on MoS2/WS2 hybrid nanoribbons. Sci Rep 2016; 6:21639. [PMID: 26884123 PMCID: PMC4756374 DOI: 10.1038/srep21639] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 01/22/2016] [Indexed: 11/13/2022] Open
Abstract
Modern society is hungry for electrical power. To improve the efficiency of energy harvesting from heat, extensive efforts seek high-performance thermoelectric materials that possess large differences between electronic and thermal conductance. Here we report a super high-performance material of consisting of MoS2/WS2 hybrid nanoribbons discovered from a theoretical investigation using nonequilibrium Green’s function methods combined with first-principles calculations and molecular dynamics simulations. The hybrid nanoribbons show higher efficiency of energy conversion than the MoS2 and WS2 nanoribbons due to the fact that the MoS2/WS2 interface reduces lattice thermal conductivity more than the electron transport. By tuning the number of the MoS2/WS2 interfaces, a figure of merit ZT as high as 5.5 is achieved at a temperature of 600 K. Our results imply that the MoS2/WS2 hybrid nanoribbons have promising applications in thermal energy harvesting.
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Affiliation(s)
- Zhongwei Zhang
- School of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, Hunan, P.R. China
| | - Yuee Xie
- School of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, Hunan, P.R. China
| | - Qing Peng
- Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Yuanping Chen
- School of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, Hunan, P.R. China
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Tan X, Shao H, Hu T, Liu G, Jiang J, Jiang H. High thermoelectric performance in two-dimensional graphyne sheets predicted by first-principles calculations. Phys Chem Chem Phys 2015; 17:22872-81. [DOI: 10.1039/c5cp03466c] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The thermoelectric properties of two-dimensional graphyne sheets are investigated by using first-principles calculations and the Boltzmann transport equation method.
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Affiliation(s)
- Xiaojian Tan
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - Hezhu Shao
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - Tianqi Hu
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - Guoqiang Liu
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - Jun Jiang
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - Haochuan Jiang
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
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Abstract
Molecular dynamics simulations are employed to investigate the thermal conductivity of oxidized gamma-graphyne with the different oxygen coverage and at different tensile strain.
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Affiliation(s)
- Y. Y. Zhang
- School of Computing
- Engineering and Mathematics
- University of Western Sydney
- Penrith
- Australia
| | - Q. X. Pei
- Institute of High Performance Computing
- A*STAR
- Singapore 138632
- Singapore
| | - M. Hu
- Institute of Mineral Engineering
- Division of Materials Science and Engineering
- Faculty of Georesources and Materials Engineering
- RWTH Aachen University
- 52064 Aachen
| | - Z. Zong
- School of Naval Architecture
- Dalian University of Technology
- China 112064
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