Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


Home > Press > Nanotechnology Colloquium: Electronic-Grade Carbon Nanotube Solutions

Speakers: Xuliang Han, Ph.D.
Senior Research Engineer,
Brewer Science, Inc.


Abstract: A proprietary technique has been developed at Brewer Science, Inc. to produce unique electronic-grade carbon nanotube (CNT) solutions. This technique can effectively remove both metallic and carbonaceous impurities in the raw soot, and the outcome is a stable solution that contains individually suspended ultrapure CNTs without any surfactant. The concentration of trace metals is below 25 ppb, which meets the requirement at any semiconductor device fab. With these unique electronic-grade CNT solutions, a number of solution-casting processes, such as spin coating, spray coating, and micro dispensing, have been successfully demonstrated to form ultrapure CNT films of various densities. These ultrapure CNT thin films can function as excellent carrier transport layers in thin-film transistors (TFTs). A CNT-TFT has been fabricated on a regular transparency film with extraordinary field-effect mobility ~48,000 cm2/(V,s), high current-carrying capacity > 30 mA, and high modulation speed >300 MHz. Other applications of these unique electronic-grade CNT solutions will also be discussed.

Nanotechnology Colloquium: Electronic-Grade Carbon Nanotube Solutions

Austin, TX | Posted on February 8th, 2007

Bio: Dr. Xuliang Han received his Ph.D. in Electrical and Computer Engineering from The University of Texas at Austin in 2003. In his Ph.D. research, he invented optical centralized shared bus architecture, implemented the first fan-out equalized optical backplane bus, and demonstrated centralized microprocessor-to-memory optical interconnects at 1.25Gbps on a prototype machine. After graduation he joined Brewer Science, Inc. as a Senior Research Engineer. Currently he is developing carbon nanotube based electronic devices, such as thin-film transistors, nonvolatile memories, infrared sensors, and biosensors. He is also investigating the basic properties of nanomaterials by using various optical spectroscopic techniques, such as Raman and spectrofluorescence.
Dr. Han is an adjunct faculty member at Missouri State University, and a member of IEEE, SPIE, and MRS.

VENUE: You may attend the presentation from any one of these locations:

AUSTIN: Winstead PC
401 Congress Av., Ste 2100,
Austin, TX 78701; 512-370-2800

DALLAS: The University of Texas at Dallas,
The School of Management, Room SOM 1.502,
800 West Campbell Road, Richardson, TX 75080; 972-883-4568

HOUSTON: Winstead PC
919 Milam, Ste 2400
Houston, TX 77002; 713-650-8400

700 N. St Mary St., Ste 1900
San Antonio, TX 78205; 210-277-6800

600 Town Center One, 1450 Lake Robbins Drive
The Woodlands, TX 77380; 281-681-5900

Program begins at 11:30am with a complimentary lunch provided in the Winstead offices. Presentation begins at 12:00pm.

Event Coordinators:
Richard Fink 512-339-5020x130
Max Roundhill 512-339-5020x120

Chairman: Dr. Zvi Yaniv

Registration deadline is Friday, February 16 at 5:00 PM Central.

To register, please send an email to Deepika Misra with your preferred attendance location.

DVDs of selected presentations from previous speakers are available for a small fee (contact )


About NanoExpress
NanoExpress, a monthly email newsletter, is devoted to providing information on technological advances, applications, and business news to nanotechnology professionals. To subscribe, go to the web link

For more information, please click here

Nanomaterials Applications Center
Walter J Trybula, Ph.D.
Texas State University
San Marcos, TX
(512) 245-6062

Copyright © NanoExpress

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press


Nanotech-based sensor developed to measure microRNAs in blood, speed cancer detection November 19th, 2015

A simple, rapid test to help ensure safer meat November 19th, 2015

Plasma Focus Device Applied to Produce Zinc Oxide Nanofilms November 18th, 2015

Researchers design and patent graphene biosensors: The Moscow Institute of Physics and Technology is patenting biosensor chips based on graphene, graphene oxide and carbon nanotubes that will improve the analysis of biochemical reactions and accelerate the development of novel dr November 16th, 2015


New Model Presented to Design, Produce Electronic Nanodevices November 6th, 2015

GLOBALFOUNDRIES Achieves 14nm FinFET Technology Success for Next-Generation AMD Products: Leading-edge foundry’s proven silicon technology poised to help enable significant performance and power efficiency improvements for AMD’s next-generation products November 6th, 2015

USF team finds new way of computing with interaction-dependent state change of nanomagnets: University of South Florida engineering researchers find nano-scale magnets could compute complex functions significantly faster than conventional computers October 29th, 2015

Nanoquakes probe new 2-dimensional material: Collaborative research between UC Riverside and the University of Augsburg, Germany, opens up new ways of understanding monolayer films for (opto-)electronic applications October 26th, 2015


New 'self-healing' gel makes electronics more flexible November 25th, 2015

Scientists design a QKD-based quantum private query with no failure November 25th, 2015

MIT mathematicians identify limits to heat flow at the nanoscale: New formula identifies limits to nanoscale heat transfer, may help optimize devices that convert heat to electricity November 25th, 2015

Physicists explain the unusual behavior of strongly disordered superconductors: Using a theory they developed previously, the scientists have linked superconducting carrier density with the quantum properties of a substance November 25th, 2015

Human Interest/Art

Bionic liver micro-organs explain off-target toxicity of acetaminophen (Tylenol): Israeli-German partnership aims to replace animal experiments with advanced liver-on-chip devices August 17th, 2015

Omni Nano and Time Warner Cable Partner to Provide Nanotechnology Education to the Boys & Girls Clubs of Los Angeles: A $10,000 Donation to Benefit Youth of Los Angeles County's Boys & Girls Clubs August 4th, 2015

Kalam: versatility personified August 1st, 2015

Pakistani Students Who Survived Terror Attack to Attend Weeklong “NanoDiscovery Institute” at SUNY Poly CNSE in Albany July 29th, 2015


Nanometrics Announces Upcoming Investor Events November 18th, 2015

FEI and ICON Analytical Demonstrate the Power of TEM for Materials and Life Sciences Research: FEI’s Talos scanning transmission electron microscope will be available for demos and workshops at the Indian Institute of Science from 23 November to 15 December 2015 November 17th, 2015

Arrowhead Presents Data Showing Robust Sustained Anti-viral Effects with ARC-520 in Hepatitis B Infected Chimpanzees November 15th, 2015

Breakthrough in superconducting materials opens new path to fusion: New high-temperature superconducting materials are also compatible with high magnetic fields November 13th, 2015

The latest news from around the world, FREE

  Premium Products
Only the news you want to read!
 Learn More
University Technology Transfer & Patents
 Learn More
Full-service, expert consulting
 Learn More

Nanotechnology Now Featured Books


The Hunger Project

Car Brands
Buy website traffic