Article
Chemistry, Multidisciplinary
Lai Wei, Hongfeng Huang, Chunmei Gao, Danqing Liu, Lei Wang
Summary: Novel butterfly-shaped small-molecule organic semiconductors have been synthesized and complexed with single-walled carbon nanotubes as p-type thermoelectric materials, showing significantly improved thermoelectric performances compared to planar analogues. The enhanced performances are attributed to the curved molecular structures increasing interactions and activation energy between molecules and SWCNTs. This composite opens up a new avenue for the design of thermoelectric materials and devices.
MATERIALS HORIZONS
(2021)
Article
Chemistry, Multidisciplinary
Lingbo Liu, Ling Lei, Keni Zeng, Kangbing Wu, Nianjun Yang
Summary: Red phosphorus (RP) nanoparticles with tuned surface chemistry were synthesized using a phosphorus-amine approach. In situ spectroscopic techniques were used to monitor the cleavage of P-O-P bond and the formation of P-O-C bond during the transition. RP nanoparticles grown on single-walled carbon nanotube (SWCNT) showed efficient sensing of p-phenylenediamine (PPD) in hair dyes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Sixing Yin, Wentao Lu, Xin Wu, Qunyi Luo, Erqiang Wang, Cun-Yue Guo
Summary: Fabricating flexible high-performance PANI/SWCNT TE composites by dynamic 3-phase interfacial electropolymerization of aniline and physical mixing with SWCNTs, the addition of DMSO and varying loadings of SWCNTs show significant enhancements in TE performance. The composites exhibit the highest power factor of 236.4 +/- 5.9 μWm(-1)K-2 at room temperature, demonstrating the effectiveness of introducing DMSO into the electrolyte for fabricating high-performance TE composites.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Rinu Elizabeth Roy, R. S. Rajeev
Summary: PVDF-FSWCNT composites were prepared under different process conditions and with optimized functionalization of the nanotubes. The results showed that FSWCNAT-4, functionalized for 4 hours, can create a polar gamma phase in PVDF, leading to improved properties. The processing conditions also affect the appearance and transparency of the composite films, making them suitable for different applications.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Materials Science, Composites
Xiuxiu Nie, Xinxin Li, Yueting Huang, Jiatao Wu, Fan Yang, Fei Zhong, Hong Xin, Chunmei Gao, Lei Wang
Summary: The study demonstrated that the introduction of E7 eutectic nematic mixture can significantly improve the thermoelectric performance of SWCNT composite materials, including increasing the Seebeck coefficient and power factor. Furthermore, after doped with triethylamine, SWCNT/E7 composites can convert from p-type to n-type.
COMPOSITES COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Zhijun Chen, Yutao Cui, Lirong Liang, Hanfu Wang, Wei Xu, Qichun Zhang, Guangming Chen
Summary: This study prepares a flexible composite film by covalently bonding single-walled carbon nanotubes (SWCNTs) with porous metal-organic frameworks (MOFs), demonstrating good flexibility and p-type thermoelectric characteristics. Furthermore, a flexible thermoelectric device connected by multiple films in series generates high open-circuit voltage and maximum power.
MATERIALS TODAY NANO
(2022)
Article
Chemistry, Multidisciplinary
Bora Yoon, Seon-Jin Choi, Timothy M. Swager, Gary F. Walsh
Summary: A chemiresistive cyclohexanone sensor based on single-walled carbon nanotubes functionalized with thiourea derivatives was developed on a flexible substrate, showing selective detection of cyclohexanone with minor responses to interfering volatile organic compounds. The sensor exhibited promising chemiresistive responses to cyclohexanone exposure, potentially suitable for wearable sensor applications.
Article
Biochemistry & Molecular Biology
Aigul Shamsieva, Alexander Evseev, Irina Piyanzina, Oleg Nedopekin, Dmitrii Tayurskii
Summary: The use of carbon nanotubes is a promising direction in materials science for improving the mechanical properties of polymers. The addition of single-walled carbon nanotubes to a polymer can significantly enhance its mechanical, electrical, optical, and structural properties. However, there is a limit to the improvement, and exceeding a certain content of nanotubes can lead to a decrease in mechanical properties.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Mathematics, Interdisciplinary Applications
Zhen Wang, Weipeng Hu
Summary: This paper investigates the resonance behavior of carbon nanotube sensors under various perturbations, exploring the dynamic stability and complex behavior of nonlinear systems in nanotube devices. Theoretical analysis and numerical simulations are used to verify the research results.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Chemistry, Multidisciplinary
Shamil Galyaltdinov, Ivan Lounev, Timur Khamidullin, Seyyed Alireza Hashemi, Albert Nasibulin, Ayrat M. Dimiev
Summary: In this study, polymer composites with record-high dielectric permittivity in both low-frequency range and X-band were successfully prepared by using Tuball carbon nanotubes as fillers and a simple preparation procedure. The specific structural features of Tuball nanotubes were attributed to the significantly high permittivity values.
Article
Nanoscience & Nanotechnology
Jueshuo Fan, Xiaodong Wang, Fusheng Liu, Zhijun Chen, Guangming Chen
Summary: The study prepared thermoelectric composites using a covalent-bond grafting method between tin selenide and single-walled carbon nanotubes, achieving an optimized power factor and assembling a flexible thermoelectric generator, opening a new avenue for the design of high-performance thermoelectric composites and flexible TEGs.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Chenmaya Xia, Daqi Zhang, Henan Li, Sheng Li, Haoming Liu, Li Ding, Xiyan Liu, Min Lyu, Ruoming Li, Juan Yang, Yan Li
Summary: SWNTs can be used to construct reusable SERS substrates with single molecule sensitivity and preservation of intrinsic properties, utilizing polyhedral gold nanocrystals to create effective hot spots. Using SWNTs to build SERS substrates may become a powerful strategy in various single molecule studies.
Article
Chemistry, Physical
Jiang Li, Alayna Brieann Huckleby, Mei Zhang
Summary: The studies focus on conductive polymers, with partially conjugated structures showing enhanced power factor and improved TE performance after thermal treatment. Controlling PAN content and temperature during thermal treatments can significantly increase the power factor of the composite materials. Conclusively, partially conjugated polymers play a crucial role in enhancing TE performance and are promising candidates for efficient organic TE materials.
JOURNAL OF MATERIOMICS
(2021)
Article
Materials Science, Composites
Jiatao Wu, Shichao Wang, Xiaojun Yin, Fan Yang, Yongshi Wen, Guibin Cao, Yufeng Wu, Hong Xin, Chunmei Gao, Lei Wang
Summary: This study designed and synthesized two-dimensional conjugated polymers based on benzodithiophene (BDT) backbone, decorated with linear tetraethylene glycol and macrocyclic crown ether as different side chain structures, and systematically studied their effect on the thermoelectric performance of SWCNTs. The results showed that the macrocyclic polar side chains can significantly improve the thermoelectric performance of the composites.
COMPOSITES COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Marianna V. V. Kharlamova, Christian Kramberger
Summary: This paper explores the growth mechanism, structure, growth processes, growth kinetics, and optical, vibronic and electronic properties of metallocene-filled single-walled carbon nanotubes (SWCNTs). The procedures used to fill the nanotubes are described. The doping effects on metallicity-mixed and sorted SWCNTs filled with metallocenes are investigated through various spectroscopy techniques. The modification of the electronic properties of filled SWCNTs and the applications of metallocene-filled SWCNTs in various fields are discussed.
Article
Materials Science, Multidisciplinary
Takaaki Morimoto, Yicheng Yang, Yusuke Ochiai, Nobuko Fukuda, Yoshimichi Ohki
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2020)
Article
Chemistry, Multidisciplinary
Kouji Suemori, Yuichi Watanabe, Nobuko Fukuda, Sei Uemura
Article
Engineering, Electrical & Electronic
Yasuyuki Kusaka, Nobuko Fukuda
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2020)
Article
Engineering, Chemical
Yasuyuki Kusaka, Tadaharu Kawamura, Masatoshi Nakagawa, Kazuki Okamoto, Keizo Tanaka, Nobuko Fukuda
Summary: A method for creating high-aspect ratio conductive traces by combining hot-embossing and gravure doctoring techniques has been developed. Voids between microparticles help volatile solvents escape smoothly, minimizing thickness reduction during thermal sintering. The fabricated trace shows extremely low resistance, making it suitable for applications such as flexible transparent heaters.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Physics, Applied
Ivan Turkevych, Said Kazaoui, Naoki Shirakawa, Nobuko Fukuda
Summary: In this study, indoor photovoltaic cells based on AgBiI4 rudorffites were fabricated and characterized, showing promising photoconversion efficiency and power output for energy harvesting in environmental nanosensors. The cells can be combined with supercapacitors for reliable intermittent data transmission in low-power wireless systems.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2021)
Article
Physics, Applied
Ivan Turkevych, Nobuko Fukuda
Summary: In this study, a simple method for the formation of Pt nanopillars sandwiched between W metal layers and nanoporous anodic alumina membranes was demonstrated. By selectively dissolving WO3 and electrolessly depositing Pt, the formation of Pt nanopillars was achieved under conditions that are not affected by complex biological fluid components.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2022)
Article
Physics, Applied
Yuichi Watanabe, Kouji Suemori, Kazunori Kuribara, Nobuko Fukuda, Ken-ichi Nomura, Sei Uemura
Summary: The researchers proposed a simple circuit structure for a printable physically unclonable function (PUF) to enhance the security level of electronic devices. By adjusting the manufacturing conditions, the average conduction probability of the PUF elements could be controlled. However, the printing variations made the actual appearance pattern of the conduction elements completely random. Statistical evaluation showed that the randomly generated conduction pattern had enough potential to be used as a PUF security system.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2022)
Article
Physics, Applied
Ivan Turkevych, Said Kazaoui, Kouji Suemori, Alexey B. Tarasov, Eugene A. Goodilin, Naoki Shirakawa, Nobuko Fukuda
Summary: This research demonstrates that the polyiodide-assisted conversion of Pb nanolayers into MAPbI(3) can result in the formation of crystalline MAPbI(3) thin films on large flexible substrates at room temperature, without any byproducts or unreacted components.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Kouji Suemori, Taiki Nobeshima, Sei Uemura, Nobuko Fukuda
Summary: Polymer-based thermoelectric devices fabricated by solvent-free printing technique exhibit improved performance compared to conventional solution processes, with significantly higher electric power output. This novel approach opens up possibilities for various applications of polymer-based TEDs, such as wearable power sources converting body heat into electricity.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Materials Science, Multidisciplinary
Taichi Kikkawa, Daisuke Kumaki, Shizuo Tokito, Nobuko Fukuda, Yasuyuki Kusaka
Summary: The use of printing technology for electronic devices has gained attention for its cost-effectiveness, with temperature detection being a central concern. However, issues such as non-uniform thickness and structural consistency in the ink patterns applied on substrates remain challenges that need further development for low-cost printed thermistors.
FLEXIBLE AND PRINTED ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Nobuko Fukuda, Naoyuki Ishida
Summary: Cotton textiles with plasmonic functions were obtained by immobilizing gold nanoparticles on cotton fibers, allowing for heating through irradiation of visible light.
Article
Materials Science, Multidisciplinary
Yasuyuki Kusaka, Khiev Kimnannara, Masayoshi Koutake, Shinya Kano, Hiromitsu Furukawa, Nobuko Fukuda
Summary: This study presents nanoparticle-based, high-resolution patternable ionogels for printed solid-state ionic devices. By incorporating an ionic liquid into a spherical silica nanoparticle suspension, a quasi-solid ionogel layer compatible with reverse-offset printing with a spatial resolution of approximately 5 μm was achieved. The optimized ink formulations allowed for successful patterning with a saturation up to 102%.
FLEXIBLE AND PRINTED ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Kouji Suemori, Yuichiro Komatsu, Yusuke Komazaki, Sei Uemura, Nobuko Fukuda
Summary: In this study, a power generator that converts daily air temperature cycles into electricity is demonstrated. The generator combines a thermoelectric device with a mixture of encapsulated alkanes that undergo continuous phase transitions induced by ambient temperature cycles. The operating temperature range of the generator can be extended by choosing appropriate alkane capsules. With an operating temperature range of -0.2-37.2 degrees C, the generator can generate electricity from daily temperature variations in temperate and subtropical countries. The electric powers obtained indoors and outdoors are 180 and 300 mu W, respectively. This development paves the way for semi-permanent power sources in various environments.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Multidisciplinary Sciences
Anri Watanabe, Masayuki Omiya, Makoto Sato, Hiromitsu Furukawa, Nobuko Fukuda, Hiroshi Minagawa
Summary: In this study, near-infrared spectroscopy (NIRS) was used to detect the aging and condition of protective coating materials on concrete structures, aiming to extend their service lifetime. The results showed that NIRS could detect the degradation of coating materials before their permeability was affected. Additionally, the portable nature of the NIR spectrometer allowed for inspection of high-rise areas and hard-to-reach areas, making NIRS a simple, safe, and inexpensive method for surface coating material inspection.
Article
Chemistry, Physical
Yasuyuki Kusaka, Atsushi Takei, Masayoshi Koutake, Tomonori Fukasawa, Toru Ishigami, Nobuko Fukuda
