Use heated nano-tip electronic measurements

Use of heated nano-tip for electronic measurements

1:12 AM, 23rd December 2011
Use of heated nano-tip for electronic measurements
Electrothermal cantilever with nanometer-scale electrode tip integrated onto a microheater.

ILLINOIS, US: Atomic force microscope cantilever tips with integrated heaters are widely used to characterize polymer films in electronics and optical devices, pharmaceuticals, paints and coatings. These heated tips are also used in research labs to explore new ideas in nanolithography and data storage, and to study fundamentals of nanometer-scale heat flow. Until now, however, no one has used a heated nano-tip for electronic measurements.

“We have developed a new kind of electro-thermal nanoprobe. It can independently control voltage and temperature at a nanometer-scale point contact. It can also measure the temperature-dependent voltage at a nanometer-scale point contact,” said William King, Mechanical Science and Engineering Professor, Illinois.

“Our goal is to perform electro-thermal measurements at the nanometer scale. Our electro-thermal nanoprobe can be used to measure the nanometer-scale properties of materials such as semiconductors, thermoelectrics, and ferroelectrics,” according to Patrick Fletcher, Phd, Electro-Thermal Nanoprobes for Nanometrology and Nanofabrication, Illinois.

The electro-thermal probes are different than thermal nanoprobes typically used in King’s group and elsewhere. They have three electrical paths to the cantilever tip. Two of the paths carry heating current, while the third allows the nanometer-scale electrical measurement. The two electrical paths are separated by a diode junction fabricated into the tip. While the cantilever design is complex, the probes can be used in any atomic force microscope.

In addition to Fletcher, co-authors of the paper include Byeonghee Lee and William King. The research was performed in the Nanoengineering laboratory as well as the Micro and Nanotechnology Laboratory and the Materials Research Laboratory at Illinois.

© University of Illinois News

0 Comments

Login

Your Comments (Up to 2000 characters)
Please respect our community and the integrity of its participants. WOC reserves the right to moderate and approve your comment.

Related News


Valspar opens new R&D centre in China

MINNEAPOLIS, US/ SHUNDE, CHINA: Valspar Corporation opened its new research and development centre in Shunde, China. Built with the latest standards ...

Read more
PTT GC, Perstorp form products JV for polyurethane industry

  GRENOBLE, FRANCE: Perstorp and PTT Global Chemical formed a joint venture (JV) for worldwide manufacturing and sales of products for the pol ...

Read more
Orascom to demerge its construction and fertilizer business

CAIRO, EGYPT: Orascom Construction Industries (OCI) will start the process of demerger of the company’s construction business from its fertili ...

Read more
Supreme Court of India allows endosulfan formulation export

  NEW DELHI, INDIA: The Supreme Court of India has allowed the export of more than 2,500 kl of endosulfan formulation, which is used for the pro ...

Read more
Foster Wheeler bags BP exploration project contract in Scotland

ZUG, SWITZERLAND: Foster Wheeler AG’s, Global Engineering and Construction group subsidiary has been awarded an engineering, procurement and con ...

Read more
Omya, United Chemicals form JV to strengthen its distribution network

OFTRINGEN, SWITZERLAND/JAKARTA, INDONESIA: Omya AG and PT United Chemicals Inter Aneka have formed a joint venture agreement. “United Chemical ...

Read more