scholarly journals Acoustic-assisted assembly of an individual monochromatic ultralong carbon nanotube for high on-current transistors

2016 ◽  
Vol 2 (11) ◽  
pp. e1601572 ◽  
Author(s):  
Zhenxing Zhu ◽  
Nan Wei ◽  
Huanhuan Xie ◽  
Rufan Zhang ◽  
Yunxiang Bai ◽  
...  

Great effort has been applied to scientific research on the controllable synthesis of carbon nanotubes (CNTs) with high semiconducting selectivity or high areal density toward the macroscale applications of high-performance carbon-based electronics. However, the key issue of compatibility between these two requirements for CNTs remains a challenge, blocking the expected performance boost of CNT devices. We report an in situ acoustic-assisted assembly of high-density monochromatic CNT tangles (m-CNT-Ts), consisting of one self-entangled CNT with a length of up to 100 mm and consistent chirality. On the basis of a minimum consumed energy model with a Strouhal number of approximately 0.3, the scale could be controlled within the range of 1 × 104 to 3 × 104 μm2 or even a larger range. Transistors fabricated with one m-CNT-T showed an on/off ratio of 103 to 106 with 4-mA on-state current, which is also the highest on-state current recorded so far for single CNT–based transistors. This acoustic-assisted assembly of chiral-consistent m-CNT-Ts will provide new opportunities for the fabrication of high-performance electronics based on perfect CNTs with high purity and high density.

2016 ◽  
Vol 4 (12) ◽  
pp. 4472-4478 ◽  
Author(s):  
Yang Liu ◽  
Jing Li ◽  
Feng Li ◽  
Wenzhu Li ◽  
Haidong Yang ◽  
...  

A polyaniline-multiwalled carbon nanotube supported, high performance CoFe2O4 nanoparticle loaded electrocatalyst is synthesized through a novel and simple in situ process under mild conditions.


Nanoscale ◽  
2020 ◽  
Vol 12 (34) ◽  
pp. 17738-17745
Author(s):  
Wei Wu ◽  
Xin Wang ◽  
Yuanyuan Deng ◽  
Cui Zhou ◽  
Ziheng Wang ◽  
...  

An asymmetric supercapacitor with excellent stability and electrochemical performance was constructed based on a carbonized wood scaffold compounding polyaniline with carbon nanotubes.


2009 ◽  
Vol 1240 ◽  
Author(s):  
Ji-Ye Kang ◽  
Su-Mi Eo ◽  
Loon-Seng Tan ◽  
Jong-Beom Baek

AbstractSingle-walled carbon nanotube (SWCNT) and multi-walled carbon nanotube (MWCNT) were functionalized with 3,4-diaminobenzoic acid via “direct” Friedel-Crafts acylation reaction in PPA/P2O5 to afford ortho-diamino-functionalized SWCNT (DIF-SWCNT) and MWCNT (DIF-MWCNT). The resultant DIF-SWCNT and DIF-MWCNT showed improved solubility and dispersibility. To improve interfacial adhesion between CNT and polymer matrix, the grafting of ABPBI onto the surface of DIF-SWCNT (10 wt%) or DIF-MWCNT (10 wt%) was conducted by simple in-situ polymerization of AB monomer, 3,4-diaminobenzoic acid dihydrochloride, in PPA. The resultant ABPBI-g-MWCNT and ABPBI-g-SWCNT showed improved the mechanical and electrical properties.


2021 ◽  
Author(s):  
Марина Евгеньевна Сычева ◽  
Светлана Анатольевна Микаева

В статье рассмотрены основные типы CNTFET транзисторов, изготовленных на углеродных нанотрубках. Представлена классификация, особенности конструкции и основные этапы технологии изготовления CNTFET транзисторов. Полевые транзисторы из углеродных нанотрубок (CNTFET) являются перспективными наноразмерными устройствами для реализации высокопроизводительных схем с очень плотной и низкой мощностью. The article considers the main types of CNTFET transistors made on carbon nanotubes. The classification, design features and the main stages of the CNTFET transistor manufacturing technology are presented. Carbon nanotube field effect transistors (CNTFET) are promising nanoscale devices for implementing high-performance circuits with very dense and low power.


RSC Advances ◽  
2018 ◽  
Vol 8 (44) ◽  
pp. 25051-25056 ◽  
Author(s):  
Yanhong Yin ◽  
Hengbo Zhang ◽  
Rongzhen Gao ◽  
Aili Wang ◽  
Xinxin Mao ◽  
...  

In this work, a Co–N doped carbon nanotube (CNT) catalyst was fabricated via a simple pyrolysis approach.


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