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Mehew JD, Timmermans MY, Saleta Reig D, Sergeant S, Sledzinska M, Chávez-Ángel E, Gallagher E, Sotomayor Torres CM, Huyghebaert C, Tielrooij KJ. Enhanced Thermal Conductivity of Free-Standing Double-Walled Carbon Nanotube Networks. ACS APPLIED MATERIALS & INTERFACES 2023; 15:51876-51884. [PMID: 37889473 PMCID: PMC10636713 DOI: 10.1021/acsami.3c09210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/28/2023]
Abstract
Nanomaterials are driving advances in technology due to their oftentimes superior properties over bulk materials. In particular, their thermal properties become increasingly important as efficient heat dissipation is required to realize high-performance electronic devices, reduce energy consumption, and prevent thermal damage. One application where nanomaterials can play a crucial role is extreme ultraviolet (EUV) lithography, where pellicles that protect the photomask from particle contamination have to be transparent to EUV light, mechanically strong, and thermally conductive in order to withstand the heat associated with high-power EUV radiation. Free-standing carbon nanotube (CNT) films have emerged as candidates due to their high EUV transparency and ability to withstand heat. However, the thermal transport properties of these films are not well understood beyond bulk emissivity measurements. Here, we measure the thermal conductivity of free-standing CNT films using all-optical Raman thermometry at temperatures between 300 and 700 K. We find thermal conductivities up to 50 W m-1 K-1 for films composed of double-walled CNTs, which rises to 257 W m-1 K-1 when considering the CNT network alone. These values are remarkably high for randomly oriented CNT networks, roughly seven times that of single-walled CNT films. The enhanced thermal conduction is due to the additional wall, which likely gives rise to additional heat-carrying phonon modes and provides a certain resilience to defects. Our results demonstrate that free-standing double-walled CNT films efficiently dissipate heat, enhancing our understanding of these promising films and how they are suited to applications in EUV lithography.
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Affiliation(s)
- Jake Dudley Mehew
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), BIST and CSIC, Campus UAB Bellaterra, Barcelona 08193, Spain
| | | | - David Saleta Reig
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), BIST and CSIC, Campus UAB Bellaterra, Barcelona 08193, Spain
| | | | - Marianna Sledzinska
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), BIST and CSIC, Campus UAB Bellaterra, Barcelona 08193, Spain
| | - Emigdio Chávez-Ángel
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), BIST and CSIC, Campus UAB Bellaterra, Barcelona 08193, Spain
| | | | - Clivia M. Sotomayor Torres
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), BIST and CSIC, Campus UAB Bellaterra, Barcelona 08193, Spain
- ICREA, Passeig Lluís Companys 23, Barcelona 08010, Spain
| | | | - Klaas-Jan Tielrooij
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), BIST and CSIC, Campus UAB Bellaterra, Barcelona 08193, Spain
- Department
of Applied Physics, TU Eindhoven, Den Dolech 2, Eindhoven 5612 AZ, The Netherlands
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Analysis of the thermoelectrical performance of samples made of Coir Agricultural Wastes combined with MWCNT. Sci Rep 2022; 12:16935. [PMID: 36209280 PMCID: PMC9547904 DOI: 10.1038/s41598-022-20801-8] [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: 03/26/2022] [Accepted: 09/19/2022] [Indexed: 12/29/2022] Open
Abstract
A biomaterial made of coir and Multi-Walled Carbon Nanotubes (MWCNTs) is presented which exhibits a relatively high-Temperature Coefficient of Resistance (TCR) and thermal insulation properties. Bolometers usually offer acceptable thermal isolation, electrical resistance, and high TCR. Fibers from agricultural waste materials such as coir has a synergistic effect as thermal insulating material and noise reducer. Based on it, powdered coir pills were used as pilot samples, as well as 2 other samples with different dispersions of MWCNTs, sodium dodecyl benzene sulfonate (SDBS) and polyvinylpyrrolidone (PVP) solution. The 3 kinds of samples were thermo-electrically characterized to determine their bolometric performance. Thermal conductivity of k = 0.045 W/m K was obtained by solving the Fourier's law substituting the data into the equation describing heat flux on the sample around room temperature. Results show that adding different concentrations of MWCNT to powdered coir will lead to films with lower electrical resistance, therefore the thermal conductivity increases while thermal resistance decreases. Finally, the bolometric performance shows a maximum peak with a relatively high TCR of - 40.4% at a temperature of 300.3 K, this synthesized material outperforms by almost 1 order of magnitude larger than commercial materials. Results in this work also indicate that it is possible to tune bolometric parameters of this kind of samples and to use them as thermal insulators in the construction industry, when building roofs and walls.
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Okazaki D, Morichika I, Arai H, Kauppinen E, Zhang Q, Anisimov A, Varjos I, Chiashi S, Maruyama S, Ashihara S. Ultrafast saturable absorption of large-diameter single-walled carbon nanotubes for passive mode locking in the mid-infrared. OPTICS EXPRESS 2020; 28:19997-20006. [PMID: 32680068 DOI: 10.1364/oe.395962] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
We study the saturable absorption properties of single-walled carbon nanotubes (SWCNTs) with a large diameter of 2.2 nm and the corresponding exciton resonance at a wavelength of 2.4 µm. At resonant excitation, a large modulation depth of approximately 30 % and a small saturation fluence of a few tens of µJ/cm2 are evaluated. The temporal response is characterized by an instantaneous rise and a subpicosecond recovery. We also utilize the SWCNTs to realize sub-50 fs, self-start mode locking in a Cr:ZnS laser, revealing that the film thickness is an important parameter that affects the possible pulse energy and duration. The results prove that semiconductor SWCNTs with tailored diameters exceeding 2 nm are useful for passive mode locking in the mid-infrared range.
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Wang P, Zheng Y, Inoue T, Xiang R, Shawky A, Watanabe M, Anisimov A, Kauppinen EI, Chiashi S, Maruyama S. Enhanced In-Plane Thermal Conductance of Thin Films Composed of Coaxially Combined Single-Walled Carbon Nanotubes and Boron Nitride Nanotubes. ACS NANO 2020; 14:4298-4305. [PMID: 32271541 DOI: 10.1021/acsnano.9b09754] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Carbon nanotubes (CNTs) and boron nitride nanotubes (BNNTs) are one-dimensional materials with high thermal conductivity and similar crystal structures. Additionally, BNNTs feature higher thermal stability in air than CNTs. In this work, a single-walled carbon nanotube (SWCNT) film was used as a template to synthesize a BNNT coating by the chemical vapor deposition (CVD) method to form a coaxial heterostructure. Then, a contact-free steady-state infrared (IR) method was adopted to measure the in-plane sheet thermal conductance of the as-synthesized film. The heterostructured SWCNT-BNNT film demonstrates an enhanced sheet thermal conductance compared with the bare SWCNT film. The increase in sheet thermal conductance shows a reverse relationship with SWCNT film transparency. An enhancement of over 80% (from ∼3.6 to ∼6.4 μW·K-1·sq-1) is attained when the BNNT coating is applied to an SWCNT film with a transparency of 87%. This increase is achieved by BNNTs serving as an additional thermal conducting path. The relationship between the thermal conductance increase and transparency of the SWCNT film is studied by a structured modeling of the SWCNT film. We also discuss the effect of annealing on the thermal conductance of SWCNTs before BNNT growth. Along with the preservation of high electrical conductance, the enhanced thermal conductance of the heterostructured SWCNT-BNNT films makes them a promising building block for thermal and optoelectronic applications.
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Affiliation(s)
- Pengyingkai Wang
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yongjia Zheng
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Taiki Inoue
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Rong Xiang
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ahmed Shawky
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Nanomaterials and Nanotechnology Department, Advanced Materials Division, Central Metallurgical R&D Institute (CMRDI), P.O. Box 87 Helwan, Cairo 11421, Egypt
| | - Makoto Watanabe
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | | | - Esko I Kauppinen
- Department of Applied Physics, Aalto University School of Science, 15100, Aalto FI-00076, Finland
| | - Shohei Chiashi
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shigeo Maruyama
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Energy NanoEngineering Laboratory, National Institute of Advanced Industrial Science and Technology (AIST), 1-2-1 Namiki, Tsukuba 305-8654, Japan
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Huang W, Tokunaga E, Nakashima Y, Fujigaya T. Thermoelectric properties of sorted semiconducting single-walled carbon nanotube sheets. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2019; 20:97-104. [PMID: 31001367 PMCID: PMC6454402 DOI: 10.1080/14686996.2019.1567107] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 12/21/2018] [Accepted: 12/22/2018] [Indexed: 06/09/2023]
Abstract
Single-walled carbon nanotubes (SWNTs), especially their semiconducting type, are promising thermoelectric (TE) materials due to their high Seebeck coefficient. In this study, the in-plane Seebeck coefficient (S), electrical conductivity (σ), and thermal conductivity (κ) of sorted semiconducting SWNT (s-SWNT) free-standing sheets with different s-SWNT purities are measured to determine the figure of merit ZT. We find that the ZT value of the sheets increases with increasing s-SWNT purity, mainly due to an increase in Seebeck coefficient while the thermal conductivity remaining constant, which experimentally proved the superiority of the high purity s-SWNT as TE materials for the first time. In addition, from the comparison between sorted and unsorted SWNT sheets, it is recognized that the difference of ZT between unsorted SWNT and high-purity s-SWNT sheet is not remarkable, which suggests the control of carrier density is necessary to further clarify the superiority of SWNT sorting for TE applications.
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Affiliation(s)
- Wenxin Huang
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka, Japan
| | - Eriko Tokunaga
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka, Japan
| | - Yuki Nakashima
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka, Japan
| | - Tsuyohiko Fujigaya
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka, Japan
- The World Premier International Research Center Initiative, International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka, Japan
- Japan Science and Technology Agency (JST-PRESTO), Kawaguchi, Japan
- Center for Molecular Systems (CMS), Kyushu University, Fukuoka, Japan
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