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Marimuthu A, Basu H, Singh S, Saha S, Basu R, Chandwadkar P, Acharya C, Patra CN. Intercalation of V 2O 5 and Polypyrrole into a Graphene Oxide Layer: A Hybrid Multifunctional Photothermal Structure for Efficient Solar Evaporation, Water Purification, Disinfection, and Power Production. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39145408 DOI: 10.1021/acsami.4c12476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Development of a hybrid multifunctional photothermal structure with multifunctional capabilities is deliberated as an effective approach for harvesting abundant solar energy for sustainable environmental applications. Achieving enhanced solar to thermal conversion efficiency utilizing a suitably designed, environmentally compatible thermal management structure however remains a significant challenge. Herein, we report the intercalation of V2O5 and polypyrrole into a graphene oxide layer to design a hybrid photothermal assembly (PPy-V2O5-GO) and its multifunctional proficiencies. The hybrid photothermal structure demonstrated synergistic photothermal conversion, buoyant porous structure sustaining water transmission, and efficient steam release. V2O5 and polypyrrole-intercalated optimized graphene oxide structure attained an evaporation rate of 1.9 kg m-2 h-1 with a conversion efficiency of 92% under 1 sun solar radiation. At maximum, the assembly's surface temperature hit 64 ± 2 °C, suggesting its suitability as a solar water purifier. Outdoor experiments suggest the evaporator assembly's capability to accumulate a total output of 15 kg m-2 over a single day. Cell viability investigations revealed strong antimicrobial properties of PPy-V2O5-GO against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus bacteria, eliminating nearly all under 1 sun, making it a potential candidate for photothermal therapy. Furthermore, when combined with a commercial thermoelectric module, the framework displayed exceptional photothermal conversion efficiency, hinting at its potential for electrical power generation. The integration of PPy-V2O5-GO with a Bi2Te3-based thermoelectric module significantly boosted the thermoelectric generator's performance, offering an enhanced power output of 2.8 mW and a high power density of 1.24 mW/cm2, making them suitable for off-grid or remote-area application. Overall, the PPy-V2O5-GO photothermal assembly's stability, lack of leaching, effectiveness in producing pure water from seawater, antimicrobial efficacies, and recyclability make it an excellent choice for sustainable water treatment and power generation.
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Affiliation(s)
- Amarnath Marimuthu
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Hirakendu Basu
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Shweta Singh
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Sudeshna Saha
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Ranita Basu
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Technical Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Pallavi Chandwadkar
- Molecular Biology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Celin Acharya
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Molecular Biology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Chandra N Patra
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
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2
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Park JB, Wu W, Wu JY, Karkee R, Kucinski TM, Bustillo KC, Schneider MM, Strubbe DA, Ophus C, Pettes MT. Enabling Oxidation Protection and Carrier-Type Switching for Bismuth Telluride Nanoribbons via in Situ Organic Molecule Coating. NANO LETTERS 2023; 23:11395-11401. [PMID: 38079217 PMCID: PMC10755739 DOI: 10.1021/acs.nanolett.3c02000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/28/2023]
Abstract
Thermoelectric materials with high electrical conductivity and low thermal conductivity (e.g., Bi2Te3) can efficiently convert waste heat into electricity; however, in spite of favorable theoretical predictions, individual Bi2Te3 nanostructures tend to perform less efficiently than bulk Bi2Te3. We report a greater-than-order-of-magnitude enhancement in the thermoelectric properties of suspended Bi2Te3 nanoribbons, coated in situ to form a Bi2Te3/F4-TCNQ core-shell nanoribbon without oxidizing the core-shell interface. The shell serves as an oxidation barrier but also directly functions as a strong electron acceptor and p-type carrier donor, switching the majority carriers from a dominant n-type carrier concentration (∼1021 cm-3) to a dominant p-type carrier concentration (∼1020 cm-3). Compared to uncoated Bi2Te3 nanoribbons, our Bi2Te3/F4-TCNQ core-shell nanoribbon demonstrates an effective chemical potential dramatically shifted toward the valence band (by 300-640 meV), robustly increased Seebeck coefficient (∼6× at 250 K), and improved thermoelectric performance (10-20× at 250 K).
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Affiliation(s)
- Jun Beom Park
- Center
for Integrated Nanotechnologies (CINT), Materials Physics and Applications
Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Wei Wu
- Department
of Mechanical Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Jason Yingzhi Wu
- Department
of Mechanical Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Rijan Karkee
- Center
for Integrated Nanotechnologies (CINT), Materials Physics and Applications
Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
- Department
of Physics, University of California, Merced, California 95343, United States
| | - Theresa Marie Kucinski
- Center
for Integrated Nanotechnologies (CINT), Materials Physics and Applications
Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Karen C. Bustillo
- National
Center for Electron Microscopy (NCEM), Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Matthew M. Schneider
- Center
for Integrated Nanotechnologies (CINT), Materials Physics and Applications
Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
- Materials
Science in Radiation and Dynamics Extremes (MST-8), Materials Science
and Technology Division, Los Alamos National
Laboratory, Los Alamos, New Mexico 87545, United States
| | - David A. Strubbe
- Department
of Physics, University of California, Merced, California 95343, United States
| | - Colin Ophus
- National
Center for Electron Microscopy (NCEM), Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Michael Thompson Pettes
- Center
for Integrated Nanotechnologies (CINT), Materials Physics and Applications
Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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Nugraha MI, Indriyati I, Primadona I, Gedda M, Timuda GE, Iskandar F, Anthopoulos TD. Recent Progress in Colloidal Quantum Dot Thermoelectrics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2210683. [PMID: 36857683 DOI: 10.1002/adma.202210683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/12/2023] [Indexed: 06/18/2023]
Abstract
Semiconducting colloidal quantum dots (CQDs) represent an emerging class of thermoelectric materials for use in a wide range of future applications. CQDs combine solution processability at low temperatures with the potential for upscalable manufacturing via printing techniques. Moreover, due to their low dimensionality, CQDs exhibit quantum confinement and a high density of grain boundaries, which can be independently exploited to tune the Seebeck coefficient and thermal conductivity, respectively. This unique combination of attractive attributes makes CQDs very promising for application in emerging thermoelectric generator (TEG) technologies operating near room temperature. Herein, recent progress in CQDs for application in emerging thin-film thermoelectrics is reviewed. First, the fundamental concepts of thermoelectricity in nanostructured materials are outlined, followed by an overview of the popular synthetic methods used to produce CQDs with controllable sizes and shapes. Recent strides in CQD-based thermoelectrics are then discussed with emphasis on their application in thin-film TEGs. Finally, the current challenges and future perspectives for further enhancing the performance of CQD-based thermoelectric materials for future applications are discussed.
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Affiliation(s)
- Mohamad Insan Nugraha
- Physical Science and Engineering Division (PSE), KAUST Solar Center (KSC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Research Center for Advanced Materials, National Research and Innovation Agency (BRIN), South Tangerang, Banten, 15314, Indonesia
| | - Indriyati Indriyati
- Research Center for Advanced Materials, National Research and Innovation Agency (BRIN), South Tangerang, Banten, 15314, Indonesia
- Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung, 40132, Indonesia
| | - Indah Primadona
- Research Center for Advanced Materials, National Research and Innovation Agency (BRIN), South Tangerang, Banten, 15314, Indonesia
- Collaboration Research Center for Advanced Energy Materials, National Research and Innovation Agency - Institut Teknologi Bandung, Jl. Ganesha 10, Bandung, 40135, Indonesia
| | - Murali Gedda
- Physical Science and Engineering Division (PSE), KAUST Solar Center (KSC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Gerald Ensang Timuda
- Research Center for Advanced Materials, National Research and Innovation Agency (BRIN), South Tangerang, Banten, 15314, Indonesia
| | - Ferry Iskandar
- Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung, 40132, Indonesia
- Collaboration Research Center for Advanced Energy Materials, National Research and Innovation Agency - Institut Teknologi Bandung, Jl. Ganesha 10, Bandung, 40135, Indonesia
| | - Thomas D Anthopoulos
- Physical Science and Engineering Division (PSE), KAUST Solar Center (KSC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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Lou Y, Li X, Shi Z, Zhou H, Feng T, Xu B. General Syntheses of High-Performance Thermoelectric Nanostructured Solids without Post-Synthetic Ligand Stripping. NANO LETTERS 2023; 23:5317-5325. [PMID: 37212245 DOI: 10.1021/acs.nanolett.3c01438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Ligand-assisted wet chemical synthesis is a versatile methodology to produce controllable nanocrystals (NCs). The post-treatment of ligands is significant for the performance of functional devices. Herein, a method that retains ligands of colloidal-synthesized nanomaterials to produce thermoelectric nanomaterials is proposed, which differs from the conventional methods that strip ligands using multistep cumbersome processes. The ligand-retention method can control the size and dispersity of nanocrystals during the consolidation of the NCs into dense pellets, in which retained ligands are transformed into organic carbon within the inorganic matrices, establishing clear organic-inorganic interfaces. Characterizations of the nonstripped and stripped samples confirm that this strategy can affect electric transport slightly but reduce the thermal conductivity largely. As a result, the materials (e.g., SnSe, Cu2-xS, AgBiSe2, and Cu2ZnSnSe4) with ligands retained achieve higher peak zT and better mechanical properties. This method can be applied to other colloidal thermoelectric NCs and functional materials.
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Affiliation(s)
- Yue Lou
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xiaokun Li
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Zhan Shi
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Hao Zhou
- Department of Mechanical Engineering, The University of Utah, Salt Lake City 84112, Utah, USA
| | - Tianli Feng
- Department of Mechanical Engineering, The University of Utah, Salt Lake City 84112, Utah, USA
| | - Biao Xu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
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5
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Local enhancement of concentration gradient through the hydrogel-functionalized anodic aluminum oxide membranes for osmotic power generation. Macromol Res 2023. [DOI: 10.1007/s13233-023-00134-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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6
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Sousa V, Savelli G, Lebedev OI, Kovnir K, Correia JH, Vieira EMF, Alpuim P, Kolen’ko YV. High Seebeck Coefficient from Screen-Printed Colloidal PbSe Nanocrystals Thin Film. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8805. [PMID: 36556609 PMCID: PMC9781735 DOI: 10.3390/ma15248805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/02/2022] [Accepted: 12/04/2022] [Indexed: 06/17/2023]
Abstract
Thin-film thermoelectrics (TEs) with a thickness of a few microns present an attractive opportunity to power the internet of things (IoT). Here, we propose screen printing as an industry-relevant technology to fabricate TE thin films from colloidal PbSe quantum dots (QDs). Monodisperse 13 nm-sized PbSe QDs with spherical morphology were synthesized through a straightforward heating-up method. The cubic-phase PbSe QDs with homogeneous chemical composition allowed the formulation of a novel ink to fabricate 2 μm-thick thin films through robust screen printing followed by rapid annealing. A maximum Seebeck coefficient of 561 μV K-1 was obtained at 143 °C and the highest electrical conductivity of 123 S m-1 was reached at 197 °C. Power factor calculations resulted in a maximum value of 2.47 × 10-5 W m-1 K-2 at 143 °C. To the best of our knowledge, the observed Seebeck coefficient value is the highest reported for TE thin films fabricated by screen printing. Thus, this study highlights that increased Seebeck coefficients can be obtained by using QD building blocks owing to quantum confinement.
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Affiliation(s)
- Viviana Sousa
- Center of Physics of the Universities of Minho and Porto, University of Minho, 4710-057 Braga, Portugal
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
| | - Guillaume Savelli
- University Grenoble Alpes, CEA-Liten, 17 av. Des Martyrs, 38000 Grenoble, France
| | - Oleg I. Lebedev
- Laboratoire CRISMAT, UMR 6508, CNRS-ENSICAEN, 14050 Caen, France
| | - Kirill Kovnir
- Department of Chemistry, Iowa State University, Ames, IA 50011, USA
- Ames National Laboratory, U.S. Department of Energy, Ames, IA 50011, USA
| | - José H. Correia
- CMEMS-UMinho, University of Minho, 4800-058 Guimarães, Portugal
- LABBELS–Associate Laboratory, 4710-057 Braga, Portugal
| | - Eliana M. F. Vieira
- CMEMS-UMinho, University of Minho, 4800-058 Guimarães, Portugal
- LABBELS–Associate Laboratory, 4710-057 Braga, Portugal
| | - Pedro Alpuim
- Center of Physics of the Universities of Minho and Porto, University of Minho, 4710-057 Braga, Portugal
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
| | - Yury V. Kolen’ko
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
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7
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Tee SY, Ponsford D, Lay CL, Wang X, Wang X, Neo DCJ, Wu T, Thitsartarn W, Yeo JCC, Guan G, Lee T, Han M. Thermoelectric Silver-Based Chalcogenides. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2204624. [PMID: 36285805 PMCID: PMC9799025 DOI: 10.1002/advs.202204624] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/26/2022] [Indexed: 05/27/2023]
Abstract
Heat is abundantly available from various sources including solar irradiation, geothermal energy, industrial processes, automobile exhausts, and from the human body and other living beings. However, these heat sources are often overlooked despite their abundance, and their potential applications remain underdeveloped. In recent years, important progress has been made in the development of high-performance thermoelectric materials, which have been extensively studied at medium and high temperatures, but less so at near room temperature. Silver-based chalcogenides have gained much attention as near room temperature thermoelectric materials, and they are anticipated to catalyze tremendous growth in energy harvesting for advancing internet of things appliances, self-powered wearable medical systems, and self-powered wearable intelligent devices. This review encompasses the recent advancements of thermoelectric silver-based chalcogenides including binary and multinary compounds, as well as their hybrids and composites. Emphasis is placed on strategic approaches which improve the value of the figure of merit for better thermoelectric performance at near room temperature via engineering material size, shape, composition, bandgap, etc. This review also describes the potential of thermoelectric materials for applications including self-powering wearable devices created by different approaches. Lastly, the underlying challenges and perspectives on the future development of thermoelectric materials are discussed.
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Affiliation(s)
- Si Yin Tee
- Institute of Materials Research and EngineeringSingapore138634Singapore
| | - Daniel Ponsford
- Institute of Materials Research and EngineeringSingapore138634Singapore
- Department of ChemistryUniversity College LondonLondonWC1H 0AJUK
- Institute for Materials DiscoveryUniversity College LondonLondonWC1E 7JEUK
| | - Chee Leng Lay
- Institute of Materials Research and EngineeringSingapore138634Singapore
| | - Xiaobai Wang
- Institute of Materials Research and EngineeringSingapore138634Singapore
| | - Xizu Wang
- Institute of Materials Research and EngineeringSingapore138634Singapore
| | | | - Tianze Wu
- Institute of Sustainability for ChemicalsEnergy and EnvironmentSingapore627833Singapore
| | | | | | - Guijian Guan
- Institute of Molecular PlusTianjin UniversityTianjin300072China
| | - Tung‐Chun Lee
- Institute of Materials Research and EngineeringSingapore138634Singapore
- Department of ChemistryUniversity College LondonLondonWC1H 0AJUK
- Institute for Materials DiscoveryUniversity College LondonLondonWC1E 7JEUK
| | - Ming‐Yong Han
- Institute of Materials Research and EngineeringSingapore138634Singapore
- Institute of Molecular PlusTianjin UniversityTianjin300072China
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8
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Arafa IM, Shatnawi MY, Obeidallah YN. Thermoelectric Performance of Ni, Co, and Fe Nanoparticles Incorporate Into Their Metal Borates Glassy Matrices. CAN J CHEM ENG 2022. [DOI: 10.1002/cjce.24561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Isam M. Arafa
- Department of Applied Chemistry, Faculty of Science and Arts Jordan University of Science and Technology, P.O. Box 3030 Irbid Jordan
| | - Mazin Y. Shatnawi
- Department of Applied Chemistry, Faculty of Science and Arts Jordan University of Science and Technology, P.O. Box 3030 Irbid Jordan
| | - Yousef N. Obeidallah
- Department of Applied Chemistry, Faculty of Science and Arts Jordan University of Science and Technology, P.O. Box 3030 Irbid Jordan
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Shimasaki Y, Matsuno T, Guo Q, Shimojima A, Wada H, Mori T, Kuroda K. Preparation of mesoporous nitrogen-doped titania comprising large crystallites with low thermal conductivity. NANOSCALE ADVANCES 2022; 4:2509-2520. [PMID: 36134133 PMCID: PMC9417602 DOI: 10.1039/d2na00083k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 05/08/2022] [Indexed: 06/16/2023]
Abstract
Reducing the thermal conductivity (κ) of mesoporous N-doped titania (TiO2) is crucial for the development of TiO2-based materials that exhibit excellent electronic, photochemical, and thermoelectric properties. Mesopores can contribute to the reduction of κ via phonon scattering, and the scattering effect due to the randomness of crystal interfaces should be significantly reduced to clarify the role of mesopores in reducing thermal conductivity. Highly ordered mesoporous N-doped TiO2 comprising large crystallites was prepared with silica colloidal crystals as a template into which a Ti source was introduced, followed by calcination with urea. N-doped samples comprising large crystallites exhibiting random mesopores were also prepared and used for the investigation of the effects of the shape and arrangement of the mesopore on phonon scattering. The mesostructures of the two separately prepared N-doped TiO2 samples were retained after sintering at 873 K and 80 MPa to fabricate pellets. Furthermore, the effective suppression of the long mean-free-path phonon conduction by the thin pore walls at a nanometer scale thickness significantly reduced the thermal conductivities of both samples. The presence of ordered mesopores further contributed to the reduction of κ, which was probably due to the enhanced contribution of the backscattering of phonons caused by ordered pore wall surfaces.
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Affiliation(s)
- Yuta Shimasaki
- Department of Applied Chemistry, School of Advanced Science and Engineering, Waseda University 3-4-1 Okubo, Shinjuku-ku Tokyo 169-8555 Japan
| | - Takamichi Matsuno
- Department of Applied Chemistry, School of Advanced Science and Engineering, Waseda University 3-4-1 Okubo, Shinjuku-ku Tokyo 169-8555 Japan
| | - Quansheng Guo
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
| | - Atsushi Shimojima
- Department of Applied Chemistry, School of Advanced Science and Engineering, Waseda University 3-4-1 Okubo, Shinjuku-ku Tokyo 169-8555 Japan
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University 2-8-26 Nishiwaseda, Shinjuku-ku Tokyo 169-0051 Japan
| | - Hiroaki Wada
- Department of Applied Chemistry, School of Advanced Science and Engineering, Waseda University 3-4-1 Okubo, Shinjuku-ku Tokyo 169-8555 Japan
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University 2-8-26 Nishiwaseda, Shinjuku-ku Tokyo 169-0051 Japan
| | - Takao Mori
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
- Graduate School of Pure and Applied Sciences, University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8577 Japan
| | - Kazuyuki Kuroda
- Department of Applied Chemistry, School of Advanced Science and Engineering, Waseda University 3-4-1 Okubo, Shinjuku-ku Tokyo 169-8555 Japan
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University 2-8-26 Nishiwaseda, Shinjuku-ku Tokyo 169-0051 Japan
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10
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Self-Assembled Nanocomposites and Nanostructures for Environmental and Energy Applications. CRYSTALS 2022. [DOI: 10.3390/cryst12020274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Self-assembled nanocomposites are attracting considerable attention owing to their controllable architectures and self-assembly processes, as well as the increase in worldwide environmental effects and energy needs. Further understanding of the self-assembly procedure for improving environmental and energy applications would advance the design and manufacture of nanomaterials for various applications. These materials can be grouped into major categories for various application fields, including powder photocatalysts, membrane photocatalysts, and thin-film thermoelectric nanomaterials. These self-assembled nanomaterials can be used for environmental and energy applications, such as wastewater purification, hydrogen production by water splitting, energy storage, and energy harvesting. In this review, a brief introduction to the definitions and classifications of self-assembled nanocomposites is provided. We aim to provide a summary of the recent research related to self-assembled nanocomposites and nanostructures used for environmental and energy applications. Moreover, typical examples and discussions are aimed at demonstrating the advantages of self-assembled nanostructures. At the end of each section, the structural properties and the application of the nanocomposite or nanostructure are summarized. Finally, we provide perspectives for future research on the design and fabrication of self-assembled nanocomposites and nanostructures.
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11
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Li X, Zhang S, Chen W, Han H, Qiu M, Chen J, Zhang Q. Relationship Between Molecular Structure, Single crystal Packing and Self-Assembly Behavior: A Case Based on Pyrene Imide Derivatives. Chemistry 2021; 28:e202103808. [PMID: 34812551 DOI: 10.1002/chem.202103808] [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: 10/22/2021] [Indexed: 11/07/2022]
Abstract
Development of new n-type one-dimensional (1D) self-assembly nanostructure and a clear understanding of the relationship between molecular structure and self-assembly behavior are important prerequisites for further designing and optimizing organic optoelectronic nanodevice. In this article, a series of n-type organic semiconductor materials based on pyrene imide were successfully synthesized through [4+2] cycloaddition reactions and their preliminary optical and electrochemical properties were studied. The simulated HOMO-LUMO bandgaps via DFT tallied with the experimental data well. The self-assembly of these materials showed needle or fiber-like morphologies, indicating that different conjugation degree or alkyl group had significant influence on their self-assembly behaviors. Furthermore, the single-crystal packing for these molecules were analyzed and it was found out that the changes of conjugated backbone and functional group would affect certain crystal lattice parameter significantly, such as the intermolecular packing distance and crystal size etc, which would further result in different self-assembly morphology.
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Affiliation(s)
- Xiaojun Li
- School of South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Shilong Zhang
- School of South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Wangqiao Chen
- School of South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Hongjing Han
- School of South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Meizhen Qiu
- School of South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Jiawen Chen
- School of South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Qichun Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, P. R. China.,Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, 999077, P. R. China
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12
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Clarysse J, Moser A, Yarema O, Wood V, Yarema M. Size- and composition-controlled intermetallic nanocrystals via amalgamation seeded growth. SCIENCE ADVANCES 2021; 7:eabg1934. [PMID: 34321206 PMCID: PMC8318362 DOI: 10.1126/sciadv.abg1934] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 06/11/2021] [Indexed: 05/19/2023]
Abstract
Intermetallic nanocrystals are a large family of emerging materials with extensive applications in many fields. Yet, a generalized synthetic method for intermetallic nanocrystals is lacking. Here, we report the development of a colloidal synthesis method based on amalgamation of monometallic nanocrystal seeds with low-melting point metals. We use this approach to achieve crystalline and compositionally uniform intermetallic nanocrystals of Au-Ga, Ag-Ga, Cu-Ga, Ni-Ga, Pd-Ga, Pd-In, and Pd-Zn compounds. We demonstrate both compositional tunability across the phase spaces (e.g., AuGa2, AuGa, Au7Ga2, and Ga-doped Au), size tunability (e.g., 14.0-, 7.6-, and 3.8-nm AuGa2), and size uniformity (e.g., 5.4% size deviations). This approach makes it possible to systematically achieve size- and composition-controlled intermetallic nanocrystals, opening up a multitude of possibilities for these materials.
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Affiliation(s)
- Jasper Clarysse
- Institute for Electronics, Department of Information Technology and Electrical Engineering, ETH Zurich, Gloriastrasse 35, 8092 Zurich, Switzerland
| | - Annina Moser
- Institute for Electronics, Department of Information Technology and Electrical Engineering, ETH Zurich, Gloriastrasse 35, 8092 Zurich, Switzerland
| | - Olesya Yarema
- Institute for Electronics, Department of Information Technology and Electrical Engineering, ETH Zurich, Gloriastrasse 35, 8092 Zurich, Switzerland
| | - Vanessa Wood
- Institute for Electronics, Department of Information Technology and Electrical Engineering, ETH Zurich, Gloriastrasse 35, 8092 Zurich, Switzerland
| | - Maksym Yarema
- Institute for Electronics, Department of Information Technology and Electrical Engineering, ETH Zurich, Gloriastrasse 35, 8092 Zurich, Switzerland.
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13
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Kim C, Lopez DH. Effects of the Interface between Inorganic and Organic Components in a Bi 2Te 3-Polypyrrole Bulk Composite on Its Thermoelectric Performance. MATERIALS 2021; 14:ma14113080. [PMID: 34199967 PMCID: PMC8200231 DOI: 10.3390/ma14113080] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/27/2021] [Accepted: 05/31/2021] [Indexed: 11/16/2022]
Abstract
We provided a method to hybridize Bi2Te3 with polypyrrole, thus forming an inorganic/organic bulk composite (Bi2Te3–polypyrrole), in which the effects of energy band junction and phonon scattering were expected to occur at the interface of the two components. Bi2Te3–polypyrrole exhibited a considerably high Seebeck coefficient compared to pristine Bi2Te3, and thus it recorded a somewhat increased power factor despite the loss in electrical conductivity caused by the organic component, polypyrrole. Bi2Te3–polypyrrole also exhibited much lower thermal conductivity than pristine Bi2Te3 because of the phonon scattering effect at the interface. We successfully brought about the decoupling phenomenon of electrical and thermal properties by devising an inorganic/organic composite and adjusting its fabrication condition, thereby optimizing its thermoelectric performance, which is considered the predominant property for n-type binary Bi2Te3 reported so far.
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Affiliation(s)
- Cham Kim
- Division of Nanotechnology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero, Daegu 42988, Korea
- Correspondence:
| | - David Humberto Lopez
- Department of Chemical and Environmental Engineering, University of Arizona, 1133 E. James. E. Rogers Way, Tucson, AZ 85721, USA;
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14
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Londoño-Calderon A, Williams DJ, Schneider MM, Savitzky BH, Ophus C, Ma S, Zhu H, Pettes MT. Intrinsic helical twist and chirality in ultrathin tellurium nanowires. NANOSCALE 2021; 13:9606-9614. [PMID: 34002755 DOI: 10.1039/d1nr01442k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Robust atomic-to-meso-scale chirality is now observed in the one-dimensional form of tellurium. This enables a large and counter-intuitive circular-polarization dependent second harmonic generation response above 0.2 which is not present in two-dimensional tellurium. Orientation variations in 1D tellurium nanowires obtained by four-dimensional scanning transmission electron microscopy (4D-STEM) and their correlation with unconventional non-linear optical properties by second harmonic generation circular dichroism (SHG-CD) uncovers an unexpected circular-polarization dependent SHG response from 1D nanowire bundles - an order-of-magnitude higher than in single-crystal two-dimensional tellurium structures - suggesting the atomic- and meso-scale crystalline structure of the 1D material possesses an inherent chirality not present in its 2D form; and which is strong enough to manifest even in the aggregate non-linear optical (NLO) properties of aggregates.
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Affiliation(s)
- Alejandra Londoño-Calderon
- Center for Integrated Nanotechnologies, Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
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15
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Koo JM, Park CH, Yoo S, Lee GW, Yang SY, Kim JH, Yoo SI. Selective ion transport through three-dimensionally interconnected nanopores of quaternized block copolymer membranes for energy harvesting application. SOFT MATTER 2021; 17:3700-3708. [PMID: 33683277 DOI: 10.1039/d1sm00187f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A concentration gradient in an aqueous solution is a promising source of energy that can be converted into electrical energy by an ion-exchange polymer membrane. In concentration-gradient energy harvesters, ion transport through nanoporous channels is an emerging approach to enhance the energy conversion efficiency. Since massive but selective ion transport could be realized through nanochannels, the theoretical calculations predicted that nanoporous membranes can extract significantly larger energy than the conventional non-structured membranes. In this regard, scientists in the field have attempted to produce nanoporous membranes on a macroscopic scale based on 1D, 2D, and 3D materials. However, the fabrication of nanoporous membranes is often accompanied by technical difficulties, which entails high production cost, low throughput, and poor scalability. In this study, we took advantage of the self-segregating properties of block copolymers (BCPs) to address these issues. In particular, the non-solvent-induced phase separation method has been utilized to produce three-dimensionally interconnected nanopores within BCP membranes. In addition, the neutral BCP nanopores' surface was modified with positive charges to allow selective diffusion of anions in concentration-gradient cells. By mounting the porous BCP membranes between two aqueous solutions with different concentrations, we studied the BCP-membrane-mediated energy-harvesting performance.
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Affiliation(s)
- Ja-Min Koo
- Department of Polymer Engineering, Pukyong National University, Busan, 48547, Republic of Korea.
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16
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Hernandez JA, Fonseca LF, Pettes MT, Jose-Yacaman M. Thermoelectric properties of antimony selenide hexagonal nanotubes. NANOTECHNOLOGY 2021; 32:095705. [PMID: 33202386 DOI: 10.1088/1361-6528/abcb31] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Antimony selenide (Sb2Se3) is a material widely used in photodetectors and relatively new as a possible material for thermoelectric applications. Taking advantage of the new properties after nanoscale fabrication, this material shows great potential for the development of efficient low temperature thermoelectric devices. Here we study the synthesis, the crystal properties and the thermal and thermoelectric transport response of Sb2Se3 hexagonal nanotubes (HNT) in the temperature range between 120 and 370 K. HNT have a moderate electrical conductivity ∼102 S m-1 while maintaining a reasonable Seebeck coefficient ∼430 μV K-1 at 370 K. The electrical conductivity in Sb2Se3 HNT is about 5 orders of magnitude larger and its thermal conductivity one half of what is found in bulk. Moreover, the calculated figure of merit (ZT) at room temperature is the largest value reported in antimony selenide 1D structures.
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Affiliation(s)
- Jose A Hernandez
- Department of Physics-University of Puerto Rico-Rio Piedras Campus, San Juan PR 00931, United States of America
- Molecular Science Research Center-University of Puerto Rico, San Juan PR 00926, United States of America
| | - Luis F Fonseca
- Department of Physics-University of Puerto Rico-Rio Piedras Campus, San Juan PR 00931, United States of America
| | - Michael T Pettes
- Center for Integrated Nanotechnologies (CINT), Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, United States of America
| | - Miguel Jose-Yacaman
- Department of Applied Physics and Materials Science, Northern Arizona University, Flagstaff, AZ 86011, United States of America
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17
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Optical and Thermoelectric Properties of Surface-Oxidation Sensitive Layered Zirconium Dichalcogenides ZrS2−xSex (x = 0, 1, 2) Crystals Grown by Chemical Vapor Transport. CRYSTALS 2020. [DOI: 10.3390/cryst10040327] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this work, structure, optical, and thermoelectric properties of layered ZrS2−xSex single crystals with selenium composition of x = 0, 1, and 2 were examined. Single crystals of zirconium dichalcogenides layer compounds were grown by chemical vapor transport method using I2 as the transport agent. X-ray diffraction (XRD) and high-resolution transmission electron microscope (HRTEM) results indicated that ZrS2−xSex (x = 0, 1, and 2) were crystalized in hexagonal CdI2 structure with one-layer trigonal (1T) stacking type. X-ray photoelectron and energy dispersive X-ray measurements revealed oxidation sensitive behavior of the chalcogenides series. Transmittance and optical absorption showed an indirect optical gap of about 1.78 eV, 1.32 eV, and 1.12 eV for the ZrS2−xSex with x = 0, 1, and 2, respectively. From the result of thermoelectric experiment, ZrSe2 owns the highest figure-of merit (ZT) of ~0.085 among the surface-oxidized ZrS2−xSex series layer crystals at 300 K. The ZT values of the ZrS2−xSex (x = 0, 1, and 2) series also reveal increase with the increase of Se content owing to the increase of carrier concentration and mobility in the highly Se-incorporated zirconium dichalcogenides with surface states.
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18
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Biutty MN, Koo JM, Zakia M, Handayani PL, Choi UH, Yoo SI. Dielectric control of porous polydimethylsiloxane elastomers with Au nanoparticles for enhancing the output performance of triboelectric nanogenerators. RSC Adv 2020; 10:21309-21317. [PMID: 35518755 PMCID: PMC9054385 DOI: 10.1039/d0ra03522j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 05/29/2020] [Indexed: 11/21/2022] Open
Abstract
Taking advantage of the triboelectrification effect and electrostatic induction, triboelectric nanogenerators (TENGs) provide a simple and efficient path to convert environmental mechanical energy into electric energy. Since the generation of surface charges and their density on triboelectric materials are the key factors in determining TENG performance, many efforts have been undertaken to engineer the structures and chemistry of triboelectric materials. Among others, dielectric control of triboelectric materials is an emerging approach because the dielectric constant is intimately correlated with the capacitance of materials. In this regard, we prepared porous polydimethylsiloxane (PDMS) composites decorated with Au nanoparticles (NPs), which was designed to engineer the compressibility and dielectric constant of PDMS elastomer. To this end, a polydopamine layer was synthesized on the PDMS surface to facilitate the homogeneous deposition of Au NPs. Unlike untreated PDMS sponges, Au NPs were efficiently coated onto polydopamine-treated PDMS sponges to increase the dielectric constant. When the resulting porous NP-PDMS composites were assembled into TENG devices, the electrical output of the TENGs initially improved but decreased with the amount of Au NPs. This trade-off relationship has been discussed in terms of charge generation on the air surface and pores of NP-PDMS composites based on a recent experimental model. Polydopamine was utilized an adhesive interface for the uniform coating of Au nanoparticles in the pores of polydimethylsiloxane to enhance the output performance of triboelectric nanogenerators.![]()
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Affiliation(s)
| | - Ja Min Koo
- Department of Polymer Engineering
- Pukyong National University
- Busan 48547
- Korea
| | - Maulida Zakia
- Department of Polymer Engineering
- Pukyong National University
- Busan 48547
- Korea
| | | | - U Hyeok Choi
- Department of Polymer Science and Engineering
- Inha University
- Incheon 22212
- Korea
| | - Seong Il Yoo
- Department of Polymer Engineering
- Pukyong National University
- Busan 48547
- Korea
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19
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Cui Y, Zhang R, Yang L, Lv S. Self-carried AIE nanoparticles for in vitro non-invasive long-term imaging. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.10.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Abstract
Isotopes of an element have the same electron number but differ in neutron number and atomic mass. However, due to the thickness-dependent properties in MX2 (M = Mo, W; X = S, Se, Te) transition metal dichalcogenides (TMDs), the isotopic effect in atomically thin TMDs still remains unclear especially for phonon-assisted indirect excitonic transitions. Here, we report the first observation of the isotope effect on the electronic and vibrational properties of a TMD material, using naturally abundant NAWNASe2 and isotopically pure 186W80Se2 bilayer single crystals over a temperature range of 4.4-300 K. We demonstrate a higher optical band gap energy in 186W80Se2 than in NAWNASe2 (3.9 ± 0.7 meV from 4.41 to 300 K), which is surprising as isotopes are neutral impurities. Phonon energies decrease in the isotopically pure crystal due to the atomic mass dependence of harmonic oscillations, with correspondingly longer E2g and A21g phonon lifetimes than in the naturally abundant sample. The change in electronic band gap renormalization energy is postulated as being the dominant mechanism responsible for the change in optical emission spectra.
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Affiliation(s)
- Wei Wu
- Department of Mechanical Engineering , University of Connecticut , Storrs , Connecticut 06269 , United States
- Institute of Materials Science , University of Connecticut , Storrs , Connecticut 06269 , United States
| | | | - Yongqiang Wang
- Materials Science and Technology Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
- Center for Integrated Nanotechnologies (CINT), Materials Physics and Applications Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | - Michael Thompson Pettes
- Department of Mechanical Engineering , University of Connecticut , Storrs , Connecticut 06269 , United States
- Institute of Materials Science , University of Connecticut , Storrs , Connecticut 06269 , United States
- Center for Integrated Nanotechnologies (CINT), Materials Physics and Applications Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
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21
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Pressure-sensitive liquid phase epitaxy of highly-doped n-type SiGe crystals for thermoelectric applications. Sci Rep 2019; 9:4362. [PMID: 30867457 PMCID: PMC6416246 DOI: 10.1038/s41598-019-39786-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 01/31/2019] [Indexed: 11/08/2022] Open
Abstract
Based on recent works, the most desirable high-temperature thermoelectric material would be highly-doped Si1−xGex crystals or films with sufficiently high Ge concentrations so that simultaneous enhancing the power factor and wave-engineering of phonons could be possible on the ballistic thermal conductor. However, available thin film deposition methods such as metal organic chemical vapor deposition, electron-beam evaporation, or sputtering are unable to produce highly-doped SiGe single crystals or thick films of high quality. To fabricate the desired material, we here employ liquid phase epitaxy to make highly-doped (up to 2% GaP doping) SiGe crystals with minimized concentration variations on Si (111) and (100) substrates. We find that growing Si1−xGex (x = 0.05~0.25) crystals from Ga solvents at relatively high vacuum pressure (0.1 torr) displays significant deviations from previous calculated phase diagram. Moreover, doping GaP into SiGe is found to affect the solubility of the system but not the resulting Ge concentration. We thus plot a new pressure-dependent phase diagram. We further demonstrate that the new pressure-induced liquid phase epitaxy technique can yield Si1−xGex crystals of much higher Ge concentrations (x > 0.8) than those grown by the conventional method.
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22
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Farahi N, Stiewe C, Truong DYN, de Boor J, Müller E. High efficiency Mg2(Si,Sn)-based thermoelectric materials: scale-up synthesis, functional homogeneity, and thermal stability. RSC Adv 2019; 9:23021-23028. [PMID: 35514519 PMCID: PMC9067257 DOI: 10.1039/c9ra04800f] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 07/19/2019] [Indexed: 11/21/2022] Open
Abstract
Considering the need for large quantities of high efficiency thermoelectric materials for industrial applications, a scalable synthesis method for high performance magnesium silicide based materials is proposed.
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Affiliation(s)
- Nader Farahi
- Institute of Materials Research
- German Aerospace Center (DLR)
- D-51170 Köln
- Germany
| | - Christian Stiewe
- Institute of Materials Research
- German Aerospace Center (DLR)
- D-51170 Köln
- Germany
| | - D. Y. Nhi Truong
- Institute of Materials Research
- German Aerospace Center (DLR)
- D-51170 Köln
- Germany
| | - Johannes de Boor
- Institute of Materials Research
- German Aerospace Center (DLR)
- D-51170 Köln
- Germany
| | - Eckhard Müller
- Institute of Materials Research
- German Aerospace Center (DLR)
- D-51170 Köln
- Germany
- Institute of Inorganic and Analytical Chemistry
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23
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Abstract
It is demonstrated that transparent amorphous oxide semiconductors (TAOS) can be excellent thermoelectric (TE) materials, since their thermal conductivity (κ) through a randomly disordered structure is quite low, while their electrical conductivity and carrier mobility (μ) are high, compared to crystalline semiconductors through the first-principles calculations and the various measurements for the amorphous In−Zn−O (a-IZO) thin film. The calculated phonon dispersion in a-IZO shows non-linear phonon instability, which can prevent the transport of phonon. The a-IZO was estimated to have poor κ and high electrical conductivity compared to crystalline In2O3:Sn (c-ITO). These properties show that the TAOS can be an excellent thin-film transparent TE material. It is suggested that the TAOS can be employed to mitigate the heating problem in transparent display devices.
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24
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Culebras M, Choi K, Cho C. Recent Progress in Flexible Organic Thermoelectrics. MICROMACHINES 2018; 9:E638. [PMID: 30513632 PMCID: PMC6316489 DOI: 10.3390/mi9120638] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 11/23/2018] [Accepted: 11/25/2018] [Indexed: 11/20/2022]
Abstract
Environmental energy issues caused by the burning of fossil fuel such as coal, and petroleum, and the limited resources along with the increasing world population pose a world-wide challenge. Alternative energy sources including solar energy, wind energy, and biomass energy, have been suggested as practical and affordable solutions to future energy needs. Among energy conversion technologies, thermoelectric (TE) materials are considered one of the most potential candidates to play a crucial role in addressing today's global energy issues. TE materials can convert waste heat such as the sun, automotive exhaust, and industrial processes to a useful electrical voltage with no moving parts, no hazardous working chemical-fluids, low maintenance costs, and high reliability. These advantages of TE conversion provide solutions to solve the energy crisis. Here, we provide a comprehensive review of the recent progress on organic TE materials, focused on polymers and their corresponding organic composites incorporated with carbon nanofillers (including graphene and carbon nanotubes). Various strategies to enhance the TE properties, such as electrical conductivity and the Seebeck coefficient, in polymers and polymer composites will be highlighted. Then, a discussion on polymer composite based TE devices is summarized. Finally, brief conclusions and outlooks for future research efforts are presented.
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Affiliation(s)
- Mario Culebras
- Stokes Laboratories, Bernal Institute, University of Limerick, Limerick, Ireland.
| | - Kyungwho Choi
- Transportation Innovative Research Center, Korea Railroad Research Institute, Uiwang-si 16105, Korea.
| | - Chungyeon Cho
- Department of Carbon Convergence Engineering, College of Engineering, Wonkwang University, Iksan 54538, Korea.
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