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ESI Special Topics, January 2007
Citing URL: http://www.esi-topics.com/fmf/2007/january07-JiaGraceLu.html

From •>>January 2007

Jia G. Lu answers a few questions about this month's fast moving front in the field of Materials Science.


Field: Materials Science
Article: ZnO nanowire field-effect transistor and oxygen sensing property
Authors: Fan, ZY;Wang, DW;Chang, PC;Tseng, WY;Lu, JG
Journal: APPL PHYS LETT 31 85 (24): 5923-5925, DEC 13 2004
Addresses:
Univ Calif Irvine, Dept Chem Engn & Mat Sci, Irvine, CA 92697 USA.
Univ Calif Irvine, Dept Chem Engn & Mat Sci, Irvine, CA 92697 USA.
Univ Calif Irvine, Dept Elect Engn & Comp Sci, Irvine, CA 92697 USA.


   Why do you think your paper is highly cited?

Our paper is among the first few reports on the nanoelectronic device made of a nanostructured material which has both remarkable properties and versatile application prospects.

   Does it describe a new discovery, methodology, or synthesis of knowledge?


“Our paper provides a comprehensive review on a new class of nanomaterials which have wide applications in many aspects.”

Yes, the three-terminal behavior of a nanoscale field effect transistor made from ZnO nanowires had not been reported before. In addition, we presented the effect of oxygen adsorption on the nanowire surface, which is an important issue for nanoscale sensing devices.

   Could you summarize the significance of your paper in layman's terms?

Our paper demonstrates that ZnO nanowires can serve as the building blocks for future nanoelectronic devices. This has become the focus of many research groups. In addition, we have shown in the paper that this type of material is very promising for highly sensitive chemical gas detection.

   How did you become involved in this research, and were there any obstacles along the way?

We did an extensive literature search before starting this branch of research. We envisioned that this class of nanomaterials will emerge as one of the most versatile and functional materials, and that much waits to be understood and explored. Under this motivation, we have focused our investigation on semiconductor nanowires, such as ZnO, trying to study, in depth, their fundamental properties as well as to develop their potential applications.

There were, of course, obstacles along the path of research. Perseverance and adaptability are important factors for successful research conducted under scarce resources.

   Are there any social or political implications for your research?

This research has far-reaching implications. The ability to synthesize nanoscale building blocks, then to assemble and integrate them into larger structures with unique properties will change the way materials and devices are produced and applied in the future.End

Jia Grace Lu, Ph.D.
Associate Professor
Department of Physics
University of Southern California
Los Angeles, CA, USA

•> Read an Emerging Research Front comment (Materials Science) from Jia G. Lu (December 2006).

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ESI Special Topics, January 2007
Citing URL: http://www.esi-topics.com/fmf/2007/january07-JiaGraceLu.html

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