UT Chem/Biochem Dept

The 2004-2005 Beckman Scholars: Emily Barton

Faculty Mentor:Professor Keith J. Stevenson Length of term: Summer 04, Fall 04, Spring 05, Summer 05. Honors & Awards:Dean's Honored Graduate (2005); University Honors (Fall 02, Spring 03, Fall 03, Spring 04, Fall 04, Spring 05); Grand Prize Winner ($20K), University Co-op George H. Mitchell Undergraduate Student Award for Academic Excellence (2005); Norman Hackerman Endowed Presidential Scholarship (2004­05); DOW Chemical Endowed Presidential Scholarship (2003­04); ACS Division of Analytical Chemistry Undergraduate Award in Analytical Chemistry (2003, 2004); Centennial Graduate Fellowship (2005); NSF Graduate Research Fellowship (2006) Publications:McEvoy, T. M.; Celio, H.; Barton, E. E.; Stevenson, K. J. J. C. Barbour, P. C.Searson, and R. M. Penner, Eds., Mat. Res. Soc., Warrendale, PA, 2003, Proceeding Vol. 781E, Z1.1; Presentation at MRS Spring Meeting (2005); Celio, H.; Barton E. E., Stevenson, K. J. "Patterned Assembly of Colloidal Particles by Confined Dewetting Lithography" Langmuir, submitted.; Maldonado, S.; Barton, E. E. et al, "Surface Modification of Indium Tin Oxide (ITO) Films via Electrochemical Reduction of Aryldiazonium Cations" Langmuir, submitted. Where is she now? Graduated with Bachelor of Science in Chemistry with Highest Honors, May 2005. Emily is currently at graduate school in the Department of Chemistry at Princeton. How can I contact her? emmybart@juno.com

Beckman research project in the Stevenson Group:

Facile Assembly of Functional Materials using Lithographically Controlled Wetting

Current lithographic techniques such as electron beam lithography are commonly employed to manufacture nanofeatures and microstructures for devices used in such fields as nanoelectronics. This technology continues to advance, but proves to be very expensive and time consuming for practical applications. It is also suited for patterning only a small list of materials. Recently, I have developed a new technique, termed lithographically controlled wetting (LCW) that shows promise for patterning a variety of nano-sized components (spheres, particles, rods) on a multitude of surfaces. This approach is particularly attractive in that the lithographic template is low-cost and reusable. Furthermore, the patterning occurs within seconds to minutes without need for use of expensive lithographic agents or instruments. My current research focus is to extend the LCW approach to create functional nanostructured materials and architectures for technologically-relevant applications important in the areas of microelectronics and chemical sensing. For instance, I have recently used LCW to create periodic, uniform structures of micro-dimensions that function as photonic transmission gratings where the array serves as both a selective sensing element and as a sensing transducer. Through this research, I plan to elucidate fundamental assembly and chemical sensing mechanisms for patterned nanomaterials.

Download a copy of Emily's paper.