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Single-walled carbon nanotubes (SWCNTs) in their pristine form have high thermal conductivity whose further improvement has attracted a lot of interest. Some theoretical studies have suggested that the thermal conductivity of a $(10,10)$…

Materials Science · Physics 2020-02-11 Haikuan Dong , Zheyong Fan , Ping Qian , Tapio Ala-Nissila , Yanjing Su

For single particle electron cryo-microscopy (cryoEM), contrast loss due to beam-induced charging and specimen movement is a serious problem, as the thin films of vitreous ice spanning the holes of a holey carbon film are particularly…

Biological Physics · Physics 2011-10-07 Daniel Rhinow , Nils-Eike Weber , Andrey Turchanin , Armin Gölzhäuser , Werner Kühlbrandt

Semiconducting single-walled carbon-nanotubes (SWCNTs) are an interesting material for strong-light matter coupling due to their stable excitons, narrow emission in the near infrared and high charge carrier mobilities. Furthermore, they…

Materials Science · Physics 2021-03-17 Jan M. Lüttgens , Felix J. Berger , Jana Zaumseil

Single-walled carbon nanotubes (SWNTs) have been grown via chemical vapor deposition on high-kappa dielectric SrTiO3/Si substrates, and high-performance semiconducting SWNT field-effect transistors have been fabricated using the thin SrTiO3…

Mesoscale and Nanoscale Physics · Physics 2007-12-05 B. M. Kim , T. Brintlinger , E. Cobas , Haimei Zheng , M. S. Fuhrer , Z. Yu , R. Droopad , J. Ramdani , K. Eisenbeiser

We show that optical second-harmonic generation (SHG) can be observed from individual single-walled carbon nanotubes (SWCNTs) and, furthermore, allows imaging of individual tubes. Detailed analysis of our results suggests that the…

We found a giant Seebeck effect in semiconducting single-wall carbon nanotube (SWCNT) films, which exhibited a performance comparable to that of commercial Bi2Te3 alloys. Carrier doping of semiconducting SWCNT films further improved the…

Mesoscale and Nanoscale Physics · Physics 2014-01-30 Yusuke Nakai , Kazuya Honda , Kazuhiro Yanagi , Hiromichi Kataura , Teppei Kato , Takahiro Yamamoto , Yutaka Maniwa

The photovoltaic properties of carbon nanotube/Si heterojunction solar cells were investigated using network films of high quality single-walled carbon nanotubes (SWNTs) grown by atmospheric-pressure floating-catalyst chemical vapor…

Suspended single-walled carbon nanotube devices comprised of high quality electrical contacts and two electrostatic gates per device are obtained. Compared to nanotubes pinned on substrates, the suspended devices exhibit little hysteresis…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Jien Cao , Qian Wang , Dunwei Wang , Hongjie Dai

Optimized growth of Single Wall Carbon Nanotubes requires a full knowledge of the actual state of the catalyst nanoparticle and its interface with the tube. Using Tight Binding based atomistic computer simulations, we calculate carbon…

Materials Science · Physics 2015-06-05 Mamadou Diarra , Alexandre Zappelli , Hakim Amara , François Ducastelle , Christophe Bichara

Often a modification of microscopic symmetry in a system can result in a dramatic change in its macroscopic properties. Here we report that symmetry breaking by a tube-threading magnetic field can drastically increase the photoluminescence…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 J. Shaver , J. Kono , O. Portugall , V. Krstic , G. L. J. A. Rikken , Y. Miyauchi , S. Maruyama , V. Perebeinos

The interface of two dissimilar materials is well known for surprises in condensed matter, and provides avenues for rich physics as well as seeds for future technological advancements. We present some exciting magnetization (M) and remnant…

Mesoscale and Nanoscale Physics · Physics 2019-09-04 Aakanksha Kapoor , Arka Bikash Dey , Charu Garg , Ashna Bajpai

The electronic breakdown and the bias dependence of the conductance have been investigated for a large number of catalytic chemical vapor deposition (CCVD) grown single-walled carbon nanotubes (SWCNTs) with very small diameters. The…

Materials Science · Physics 2009-11-10 R. V. Seidel , A. P. Graham , B. Rajasekharan , E. Unger , M. Liebau , G. S. Duesberg , F. Kreupl , W. Hoenlein

Single-walled carbon nanotubes (SWNTs) are typically long (>100 nm) and have been well established as novel quasi one-dimensional systems with interesting electrical, mechanical, and optical properties. Here, quasi zero-dimensional SWNTs…

Materials Science · Physics 2008-04-30 Xiaoming Sun , Sasa Zaric , Dan Daranciang , Kevin Welsher , Yuerui Lu , Xiaolin Li , Hongjie Dai

Single-, double- and triple-walled carbon nanotubes (SWNTs, DWNTs and TWNTs) have been controlla- bly synthesized by an arc discharge method using asphalt as carbon source. The morphology and struc- ture of three kinds of products…

Materials Science · Physics 2014-06-10 Kai Xu , Yongfeng Li , Chunming Xu , Jinsen Gao , Hongwen Liu , Haitao Yang , Pierre Richard

High spin polarization materials or spin filters are key components in spintronics, a niche subfield of electronics where carrier spins play a functional role. Carrier transmission through these materials is "spin selective" i.e. these…

Mesoscale and Nanoscale Physics · Physics 2016-06-28 Kazi M. Alam , Sandipan Pramanik

Carbon nanotubes are quantum sources whose emission can be tuned at telecommunication wavelengths by choosing the diameter appropriately. Most applications require the smallest possible linewidth. Therefore, the study of the underlying…

Mesoscale and Nanoscale Physics · Physics 2015-03-19 V. Ardizzone , Y. Chassagneux , F. Vialla , G. Delport , C. Delcamp , N. Belabas , E. Deleporte , Ph. Roussignol , I. Robert-Philip , C. Voisin , J. S. Lauret

The properties of excitons in semiconducting single-walled carbon nanotubes (SWCNTs), isolated in vacuum or a medium, and their contributions to the optical spectra of nanotubes are studied within the elementary potential model, in which an…

Materials Science · Physics 2010-12-15 Oleksii A. Smyrnov

High performance nanocomposites require well dispersion and high alignment of the nanometer-sized components, at a high mass or volume fraction as well. However, the road towards such composite structure is severely hindered due to the easy…

Materials Science · Physics 2015-06-24 Yue Han , Xiaohua Zhang , Xueping Yu , Jingna Zhao , Shan Li , Feng Liu , Peng Gao , Yongyi Zhang , Tong Zhao , Qingwen Li

The photoluminescence (PL) quantum yield of single-walled carbon nanotubes (SWNTs) is relatively low, with various quenching effects by metallic species reported in the literature. Here, we report the first case of metal enhanced…

Materials Science · Physics 2010-10-29 Guosong Hong , Scott M. Tabakman , Kevin Welsher , Hailiang Wang , Xinran Wang , Hongjie Dai

Polymeric membranes, including Polysulfone (PSf) membranes, are routinely used for water treatment. To enhance water permeation of above membranes, it is common to synthesize polymeric membranes with carbon nanotubes (CNTs) embedded in…

Materials Science · Physics 2022-01-14 Bhakti Hirani , P. S. Goyal , Deepali Shrivastava , S. K. Deshpande
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