scholarly journals Flexible sensors based on assembled carbon nanotubes

Aggregate ◽  
2021 ◽  
Author(s):  
Sisi He ◽  
Yang Hong ◽  
Meng Liao ◽  
Yingchun Li ◽  
Longbin Qiu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Flexible Sensors

Multiwall carbon nanotubes: A review on synthesis and applications

2021 ◽  
Vol 11 ◽  
Author(s):  
Manisha Vijay Makwana ◽  
Ajay M Patel
Keyword(s):  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Arc Discharge ◽  
Multiwall Carbon Nanotubes ◽  
High Strength ◽  
Energy Storage And Conversion ◽  
Synthesis Methods ◽  
Mechanical And Thermal Properties ◽  
Nano Materials ◽  
Flexible Sensors

: MWCNTs are elongated cylindrical nanoobjects made of sp2 carbon. They have a diameter of 3–30 nm and can grow to be several centimetres long. Therefore, their aspect ratio can range between 10 to 10 million. Carbon nanotubes are the foundation of nanotechnology. It is an exceptionally fascinating material. CNTs possess excellent properties such as mechanical, electrical, thermal, high adsorption, outstanding stiffness, high strength and low density with a high aspect ratio. These properties can be useful in the fabrication of revolutionary smart nano materials. Demand for lighter and more robust nano materials in different applications of nanotechnology is increasing every day. Various synthesis techniques for the fabrication of MWCNTs, such as CVD, Arc discharge, flame synthesis, laser ablation, and spray pyrolysis, are discussed in this review article, as are their recent applications in a variety of significant fields. The first section presents a brief introduction of CNTs, then the descriptions of synthesis methods and various applications of MWCNTs in the field of energy storage and conversion, biomedical, water treatment, drug delivery, biosensors, bucky papers and resonance-based biosensors are introduced in the second section. Due to their improved electrical, mechanical, and thermal properties, MWCNTs have been extensively used in the manufacturing and deployment of flexible sensors.

Preparation and application of carbon nanotubes flexible sensors

2019 ◽  
Vol 40 (11) ◽  
pp. 111606 ◽  
Author(s):  
Shuo Li ◽  
Xiao Feng ◽  
Hao Liu ◽  
Kai Wang ◽  
Yun-Ze Long ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Flexible Sensors

scholarly journals Printed and Flexible Microheaters Based on Carbon Nanotubes

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1879
Author(s):  
Aniello Falco ◽  
Francisco J. Romero ◽  
Florin C. Loghin ◽  
Alina Lyuleeva ◽  
Markus Becherer ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Small Area ◽  
Large Scale ◽  
Operating Temperature ◽  
Flexible Substrate ◽  
Cost Effective ◽  
Input Power ◽  
Maximum Temperature ◽  
Flexible Sensors ◽  
Manufacturing Method

This work demonstrates a cost-effective manufacturing method of flexible and fully printed microheaters, using carbon nanotubes (CNTs) as the heating element. Two different structures with different number of CNT layers have been characterized in detail. The benchmarking has been carried out in terms of maximum operating temperature, as well as nominal resistance and input power for different applied voltages. Their performances have been compared with previous reports for similar devices, fabricated with other technologies. The results have shown that the heaters presented can achieve high temperatures in a small area at lower voltages and lower input power. In particular, the fully printed heaters fabricated on a flexible substrate covering an area of 3.2 mm2 and operating at 9.5 V exhibit a maximum temperature point above 70 °C with a power consumption below 200 mW. Therefore, we have demonstrated that this technology paves the way for a cost-effective large-scale fabrication of flexible microheaters aimed to be integrated in flexible sensors.

Review—Recent Advances in the Development of Carbon Nanotubes Based Flexible Sensors

2020 ◽  
Vol 167 (4) ◽  
pp. 047506 ◽  
Author(s):  
Sunil Kumar ◽  
Vladimir Pavelyev ◽  
Nishant Tripathi ◽  
Vladimir Platonov ◽  
Prachi Sharma ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Flexible Sensors ◽  
Recent Advances

Structural phenomena in the growth of carbon nanotubes

1993 ◽  
Vol 51 ◽  
pp. 750-751
Author(s):  
Jun Jiao
Keyword(s):  
Carbon Nanotubes ◽  
Growth Mechanism ◽  
Carbonaceous Material ◽  
Cluster Growth ◽  
Structural Elements ◽  
Rich Variety ◽  
Different Shapes ◽  
Point To Point

HREM studies of the carbonaceous material deposited on the cathode of a Huffman-Krätschmer arc reactor have shown a rich variety of multiple-walled nano-clusters of different shapes and forms. The preparation of the samples, as well as the variety of cluster shapes, including triangular, rhombohedral and pentagonal projections, are described elsewhere.The close registry imposed on the nanotubes, focuses attention on the cluster growth mechanism. The strict parallelism in the graphitic separation of the tube walls is maintained through changes of form and size, often leading to 180° turns, and accommodating neighboring clusters and defects. Iijima et. al. have proposed a growth scheme in terms of pentagonal and heptagonal defects and their combinations in a hexagonal graphitic matrix, the first bending the surface inward, and the second outward. We report here HREM observations that support Iijima’s suggestions, and add some new features that refine the interpretation of the growth mechanism. The structural elements of our observations are briefly summarized in the following four micrographs, taken in a Hitachi H-8100 TEM operating at an accelerating voltage of 200 kV and with a point-to-point resolution of 0.20 nm.

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