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Carbon nanotubes (CNTs) are quasi-1D nanostructures that display both high thermal conductivity and intriguing low-dimensional phonon transport phenomena. In comparison to the advances made in the theoretical calculation of the lattice…

Applied Physics · Physics 2023-08-29 Qianru Jia , Yuanyuan Zhou , Xun Li , Lucas Lindsay , Li Shi

A method is introduced to isolate and measure the electrical transport properties of individual single-walled carbon nanotubes (SWNTs) aligned on an ST-cut quartz, from room temperature down to 2 K. The diameter and chirality of the…

Mesoscale and Nanoscale Physics · Physics 2014-08-26 Tohru Watanabe , El-Hadi S. Sadki , Takahide Yamaguchi , Yoshihiko Takano

We measure the conductivity spectra of thin films comprising bundled single-walled carbon nanotubes (CNTs) of different average lengths in the frequency range 0.3-1000 THz and temperature interval 10-530 K. The observed temperature-induced…

Carbon nanotube (CNT) reinforced metal matrix composites have been the focus of researchers due to their high load-bearing capacity. Among single and multi-wall carbon nanotubes (MWCNT), the latter is preferred by manufacturers and…

Materials Science · Physics 2021-02-10 Raashiq Ishraaq , Mahmudur Rashid , Shahriar Muhammad Nahid

Carbyne, a one-dimensional (1D) carbon allotrope with alternating triple and single bonds, has the highest known mechanical strength but is unstable to bending, limiting synthesis to short linear chains. Encapsulation within carbon…

We study the structural and electronic properties of isolated single-wall carbon nanotubes (SWNTs) under hydrostatic pressure using a combination of theoretical techniques: Continuum elasticity models, classical molecular dynamics…

Other Condensed Matter · Physics 2009-11-10 Rodrigo B. Capaz , Catalin D. Spataru , Paul Tangney , Marvin L. Cohen , Steven G. Louie

We have taken advantage of the native surface roughness and the iron content of AISI 316 stainless steel to direct grow multi-walled carbon nanotube (MWCNT) random networks by chemical vapor deposition (CVD) at low-temperature ($<…

Multiwalled carbon nanotubes (MWCNTs) are decorated with Pt nanoparticles by a "layer-by-layer" approach using poly (sodium 4-styrene sulfonate) (PSS) and poly (diallyl dimethylammonium chloride) (PDDA). Transmission electron microscopy…

Materials Science · Physics 2022-03-15 Samaneh Nasiri , Feng Shi , Guang Yang , Erdmann Spiecker , Qianqian Li

The mechanical stability of open single wall carbon nanotubes (SWCNT) under axial stress (compression and tension) and twist has been re-examined in a search of specific tube-length and load scaling. SWCNT with different chiralities and…

Materials Science · Physics 2007-05-23 Ana Proykova , Hristo Iliev

This investigation deals with the effect of growth temperature on the growth behavior of Fe filled multiwalled carbon nanotubes (MWCNTs). Carbon nanotube (CNT) synthesis was carried out in a thermal chemical vapor deposition (CVD) reactor…

Materials Science · Physics 2019-08-07 Joydip Sengupta , Chacko Jacob

We study high-field electrical breakdown and heat dissipation from carbon nanotube (CNT) devices on SiO2 substrates. The thermal "footprint" of a CNT caused by van der Waals interactions with the substrate is revealed through molecular…

Mesoscale and Nanoscale Physics · Physics 2010-11-13 Albert Liao , Rouholla Alizadegan , Zhun-Yong Ong , Sumit Dutta , K. Jimmy Hsia , Eric Pop

Magneto-resistive and magneto-caloric properties of polycrystalline Pr2/3Sr1/3MnO3 have been studied as a function of sintering temperature (Ts) between 1260-1450{\deg}C. Reitveld refinement of their X-ray diffraction (XRD) patterns…

Strongly Correlated Electrons · Physics 2013-07-18 Ramesh Chandra Bhatt , Shiva Kumar Singh , P. C. Srivastava , S. K. Agarwal , V. P. S. Awana

We present a systematic experimental investigation of the reactions between hydrogen plasma and single-walled carbon nanotubes (SWNTs) at various temperatures. Microscopy, infrared (IR) and Raman spectroscopy and electrical transport…

Materials Science · Physics 2007-05-23 Guangyu Zhang , Pengfei Qi , Xinran Wang , Yuerui Lu , David Mann , Xiaolin Li , Hongjie Dai

N-doped single/multi-walled carbon nanotubes (CNTs) were studied for long time from synthesis to properties. However, the stability of N in the CNT lattice still needs further developments. In this work, to obtain more stable N-doped CNTs,…

Atomic and Molecular Clusters · Physics 2023-07-19 Lei Shi , Markus Sauer , Oleg Domanov , Philip Rohringer , Paola Ayala , Thomas Pichler

Carbon-nanofillers are known for improving the desired properties of polymers. The dispersion quality of nanofillers in the matrix is vital for the fabrication of high-performance nanocomposites. An effective approach for improving…

Applied Physics · Physics 2020-12-11 Amir Navidfar , Osman Bulut , Tugba Baytak , Hikmet Iskender , Levent Trabzon

We investigated the physicochemical surface properties of different highly aligned nitrogen-doped multi-walled carbon nanotube (N-MWCNT) carpets, synthesized using toluene/pyrazine, toluene/benzylamine and acetonitrile via a…

Mesoscale and Nanoscale Physics · Physics 2019-10-18 V. Eckert , E. Haubold , S. Oswald , S. Michel , C. Bellmann , P. Potapov , D. Wolf , S. Hampel , B. Büchner , M. Mertig , A. Leonhardt

We report the observation of the intrinsic magnetic susceptibility of highly purified SWCNT samples prepared by a combination of acid treatment and density gradient ultracentrifugation (DGU). We observed that the diamagnetic susceptibility…

Mesoscale and Nanoscale Physics · Physics 2015-07-03 Yusuke Nakai , Ryo Tsukada , Yasumitsu Miyata , Takeshi Saito , Kenji Hata , Yutaka Maniwa

The effects of multiwalled carbon nanotubes (NTs) on low-temperature phase transformations in 5CB were studied by means of differential scanning calorimetry (DSC), low-temperature photoluminescence and measurements of electrical…

Soft Condensed Matter · Physics 2015-06-15 N. Lebovka , V. Melnyk , Ye. Mamunya , G. Klishevich , A. Goncharuk , N. Pivovarova

Defects in single-walled carbon nanotubes (SWCNTs) degrade their mechanical,electrical, and thermal properties, limiting their potential applications. To realize the diverse applications of SWCNTs, it is essential to enhance their…

Materials Science · Physics 2025-04-01 Man Shen , Taiki Inoue , Mengyue Wang , Yuanjia Liu , Yoshihiro Kobayashi

Spontaneous entry of water molecules inside single-wall carbon nanotubes (SWCNTs) has been confirmed by both simulations and experiments. Using molecular dynamics simulations, we have studied the thermodynamics of filling of a (6,6) carbon…

Mesoscale and Nanoscale Physics · Physics 2015-01-27 Hemant Kumar , Chandan Dasgupta , Prabal K. Maiti