Densest array of carbon nanotubes grown to date

Densest array of carbon nanotubes grown to date

Sep. 20, 2013 — Carbon nanotubes' outstanding mechanical, electrical and thermal properties make them an alluring material to electronics manufacturers. However, until recently scientists believed that growing the high density of tiny graphene cylinders needed for many microelectronics applications would be difficult.

---

Share This:

Now a team from Cambridge University in England has devised a simple technique to increase the density of nanotube forests grown on conductive supports about five times over previous methods. The high density nanotubes might one day replace some metal electronic components, leading to faster devices. The researchers report their finding in the journal Applied Physics Letters, which is produced by AIP Publishing.

"The high density aspect is often overlooked in many carbon nanotube growth processes, and is an unusual feature of our approach," says John Robertson, a professor in the electronic devices and materials group in the department of engineering at Cambridge. High-density forests are necessary for certain applications of carbon nanotubes, like electronic interconnects and thermal interface materials, he says.

Robertson and his colleagues grew carbon nanotubes on a conductive copper surface that was coated with co-catalysts cobalt and molybdenum. In a novel approach, the researchers grew at lower temperature than is typical which is applicable in the semiconductor industry. When the interaction of metals was analyzed by X-ray photoelectron spectroscopy, it revealed the creation of a more supportive substrate for the forests to root in. The subsequent nanotube growth exhibited the highest mass density reported so far.

"In microelectronics, this approach to growing high-density carbon nanotube forests on conductors can potentially replace and outperform the current copper-based interconnects in a future generation of devices," says Cambridge researcher Hisashi Sugime. In the future, more robust carbon nanotube forests may also help improve thermal interface materials, battery electrodes, and supercapacitors.

Welcome to SUV System Ltd!

SUV System Ltd is ISO 90012008 Certified electronics distributor with 10 years of experiences.

We have built up long term business relationship with about many companies which are stockers and authorized agents. we have a steady and reliable supply to meet customer's demands to the greatest extent .Confidently, we are able to lower your cost and support your business with our years of professional service.

SUV System Ltd is Electronic Components Distributor Supplies,Find Quality Electronic Components Supplies Products IC(Integrated Circuits),Connectors,Capacitor,Resistors,Diodes,Transistors,LED at Suvsystem.com. Sourcing Other Energy, Environment, Excess Inventory Products from Manufacturers and Suppliers at Suvsystem.com

Electronic Components distributor:http://www.suvsystem.com

Connectors Distributor:http://www.suvsystem.com/l/Connectors-1.html

IC Distributor:http://www.suvsystem.com/l/IC(Integrated-Circuits)-1.html

LED Distributor:http://www.suvsystem.com/l/LED-1.html

Capacitor Distributor:http://www.suvsystem.com/l/Capacitor-1.html

Transistor Distributor:http://www.suvsystem.com/l/Transistors-1.html

Resistor Distributor:http://www.suvsystem.com/l/Resistors-1.html

Diode Distributor:http://www.suvsystem.com/l/Diodes-1.html

SUV System Ltd insists on the managing faith ofsincereness,speciality,foresight, win-win,so we build up stable-relationship customers located all over the world, including the States, Europe, Argentina, UAE, Malaysia, Australia,and India etc

we are focus on the following fields,and hope we can help you.

Resistor Arrays Multi-units Transistors Civil IC Thin Film Resistors LED Military IC Switching Diodes NXP Transistors chip Filter saws Voltage Regulators Transistors YAGEO Resistors ON Transistors Cypress IC PANASONIC Resistors FAIRCHILD diodes Dialight LED Transistors Freescale AD IC Electronic News TDK IC Digital Transistors NXP Diodes About US TOSHIBA Transistors DIODES Transistors Texas Instruments(TI) IC NEC Transistors Discrete Semiconductor Transistors Transistors Chip Ferrite Beads Schottky Diodes Diodes Inc ST Diodes Chip Fuses ON Diodes INTERSIL IC Capacitor Atmel IC Metal Can Packages Transistors INFLNEON Diodes
http://www.suvsystem.com/a/6054.aspx