Combinatorial Experimental Approach to Materials Discovery
Wednesday, November 20, 2013
12:00 pm - 1:00 pm
Fitzpatrick Center Schiciano Auditorium Side A
Professor Ichiro Takeuchi, University of Maryland
Throughout the history of mankind, scientists and engineers have relied on the slow and serendipitous trialand¿error approach for materials discovery. In 1990s, the combinatorial approach was pioneered in the pharmaceutical industry in order to dramatically increase the rate at which new chemicals are identified. The high¿throughput concept is now widely implemented in a variety of fields in materials science. We have developed combinatorial thin film synthesis and characterization techniques in order to perform rapid survey of previously unexplored materials phase space in search of new inorganic functional materials.Various thin film deposition schemes are implemented for fabricating massive arrays of compositionally varying samples on individual combinatorial libraries. A suite of high¿throughput characterization tools are employed to screen the combinatorial libraries and map different physical properties of materials as a function of sweeping composition changes. Structural and mechanical properties of materials are a major focus of rapid characterization tools. Recent emphases in the community include incorporating informatics activities and effectively interfacing with high¿throughput theoretical efforts. Examples of discoveries in multifunctional and smart actuator materials will be discussed.