نتایج جستجو برای: swnt engle walled carbon nanotube

تعداد نتایج: 290287  

Journal: :Journal of the American Chemical Society 2006
Dan Wang Zi-Chen Li Liwei Chen

Carbon nanotube (CNT) and metal nanoparticle (NP) assemblies are conjugated nanosystems with potential applications in catalysis, sensing, and light harvesting. Due to poor solubility of CNTs, previously reported synthetic approaches are limited to large multi-walled CNTs, bundles of single-walled CNTs (SWNTs), or surface-bound CNTs. Here we report a solution-phase synthesis of SWNT-metal NP as...

Journal: :Journal of diabetes science and technology 2013
Kyungsuk Yum Thomas P McNicholas Bin Mu Michael S Strano

This article reviews research efforts on developing single-walled carbon nanotube (SWNT)-based near-infrared (NIR) optical glucose sensors toward long-term in vivo continuous glucose monitoring (CGM). We first discuss the unique optical properties of SWNTs and compare SWNTs with traditional organic and nanoparticle fluorophores regarding in vivo glucose-sensing applications. We then present our...

2007
Ting Zhang Syed Mubeen Elena Bekyarova Bong Young Yoo Robert C Haddon Nosang V Myung Marc A Deshusses

We have demonstrated a NH3, NO2 and water vapour sensor based on poly(m-aminobenzene sulfonic acid) functionalized single-walled carbon nanotube (SWNT–PABS) networks. The SWNT–PABS based sensors were fabricated by simple dispersion of SWNT–PABS on top of pre-fabricated gold electrodes. SWNT–PABS sensors showed excellent sensitivity with ppbv level detection limits (i.e., 100 ppbv for NH3 and 20...

Journal: :Nanotechnology 2009
Xugang Xiong Chia-Ling Chen Peter Ryan Ahmed A Busnaina Yung Joon Jung Mehmet R Dokmeci

We report an effective technique for the controlled assembly of single-walled carbon nanotubes (SWNTs) and demonstrate organized high density network architectures on soft polymeric substrates. We utilize the surface energy differential between a plasma treated (hydrophilic) parylene-C surface and a photoresist (hydrophobic) surface to create microscale patterns of SWNT networks on a 10 microm ...

Journal: :Nanoscale 2015
Guanhong Li Qunqing Li Yuanhao Jin Yudan Zhao Xiaoyang Xiao Kaili Jiang Jiaping Wang Shoushan Fan

Single-walled carbon nanotube (SWNT) thin-film transistors hold great potential for flexible electronics. However, fabrication of air-stable n-type devices by methods compatible with standard photolithography on flexible substrates is challenging. Here, we demonstrated that by using a bilayer dielectric structure of MgO and atomic layer deposited (ALD) Al2O3 or HfO2, air-stable n-type devices c...

Journal: :The Journal of chemical physics 2004
Oleg A Louchev Hisao Kanda Arne Rosén Kim Bolton

The growth of single wall carbon nanotubes (SWNTs) mediated by metal nanoparticles is considered within (i) the surface diffusion growth kinetics model coupled with (ii) a thermal model taking into account heat release of carbon adsorption-desorption on nanotube surface and carbon incorporation into the nanotube wall and (iii) carbon nanotube-inert gas collisional heat exchange. Numerical simul...

2008
S Kim P. D. Ye Saeed Mohammadi S W. Lee S. Kim S. Mohammadi S. W. Lee

Single-walled carbon nanotube field effect transistors (SWNT-FETs) are fabricated by two different alignment techniques. The first technique is based on direct synthesis of an aligned SWNTs array on quartz wafer using chemical vapor deposition. The transistor with three SWNTs and atomic layer deposited (ALD) Al2O3 gate oxide shows a contact resistance of 280 KX, a maximum on-current of 7 lA, an...

Journal: :The Journal of chemical physics 2012
Hangjun Lu Xuechuan Nie Fengmin Wu Xiaoyan Zhou Jianlong Kou Yousheng Xu Yang Liu

By using molecular dynamics simulation, we have investigated systematically the feasibility of continuous unidirectional water flux across a deformed single-walled carbon nanotube (SWNT) driven by an oscillating charge outside without osmotic pressure or hydrostatic drop. Simulation results indicate that the flux is dependent sensitively on the oscillating frequency of the charge, the distance ...

2012
JinHyeok Cha Shohei Chiashi Junichiro Shiomi Shigeo Maruyama

Using classical molecular dynamics simulations, we have studied thermal boundary conductance (TBC) between a single-walled carbon nanotube (SWNT) and surrounding Lennard-Jones (LJ) fluids. With an aim to identify a general model that explains the TBC for various surrounding materials, TBC was calculated for three different surrounding LJ fluids, hydrogen, nitrogen, and argon in supercritical ph...

2009
Veronica M. Irurzun Yongqiang Tan Daniel E. Resasco

A series of silica-supported Co-Mo samples prepared by the sol-gel method has been compared as catalysts for the synthesis of single-walled carbon nanotubes (SWNT). The concentration ratio of ammonium hydroxide to the silica precursor tetraethoxysilane (TEOS) has an important effect on the resulting morphology of the silica support and, consequently, on the nature of the Co-Mo catalytic species...

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