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

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

(VIDEO CONFERENCED FROM THE AUSTIN OFFICE OF WINSTEAD PC)

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


SAN ANTONIO: Winstead PC
700 N. St Mary St., Ste 1900
San Antonio, TX 78205; 210-277-6800


THE WOODLANDS: Winstead PC
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 )

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

http://www.nanotxstate.org

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