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|2006 Solar Cell, Taiwan|
|2008 Solar Cells, Sydney, Australia|
|2011 Graphene Session, Grenoble, France|
|Director, Materials Research Institute|
|Materials Science and Engineering|
|General Secretary, International Union of Materials Research Societies (IUMRS)|
|2012 Organic Solar Cells, Taiwan|
|2013 Catalysis, Qatar|
|Carbon nanotubes: Recently we developed a technique whereby large quantities of nanotubes can be grown at high temperatures. These very high-quality nanotubes have been used to fabricate flat panel displays.
Photonic crystals: An exciting development has been the fabrication of a ZnO-based photonic crystal that can also lase. This work will lead to the integration of nanophotonic devices in the UV optical regime.
Random lasing phenomenon: In collaboration with colleagues in physics, we have succeeded in making the first observation of the random lasing effect in a ZnO powder layer. We have also made the world's smallest laser, a 1.5- micron ZnO particle cluster.
Quantum dots and wires: Work is in progress to synthesize and study quantum phenomena in quantum dots and nanowires of oxide-based materials.
|"Properties of multiplayer transparent conducting oxide films," E.J.J. Martin, M. Yan, M. Lane, J. Ireland, C.R. Kannewurf and R.P.H. Chang, Thin Solid Films, vol.461, pp. 309-315 (2004).
" Optically pumped ultraviolet microdisk laser on a silicon substrate," X. Liu, W. Fang, Y. Huang, X. H. Wu, S. T. Ho, H. Cao, and R. P. H. Chang, Applied Physics Letters, vol. 84, 14, pp. 2488-2490 (April 5, 2004).
" Growth mechanism and properties of ZnO nanorods synthesized by plasma-enhanced chemical vapor deposition," Xiang Liu, Xiaohua Wu, Hui Cao and R.P.H. Chang, Journal of Applied Physics, (March 15, 2004).
" Random lasing in closely packed resonant scatterers," X.H.H., A. Yamilov, N. Noh, H. Cao, E.W. Seelig and R.P.H. Chang, Journal of the Optical Society of America, B- Optical Physics, 21 (1), pp. 159-167 (Jan. 2004).
" Materials science and integration bases for fabrication of (BaxSr1-x)TiO3 thin film capacitors with layered Cu-based electrodes," W. Fan, B. Kabius, J.M. Hiller, S. Saha, J. A. Carlisle, O. Auciello, R.P.H. Chang, and R. Ramesh, Journal of Applied Physics, vol. 94, number 9, pp. 6192-6200 (November 1, 2003).
R.P.H. Chang received his B.S. degree in Physics from the Massachusetts Institute of Technology and his Ph.D in Astrophysics from Princeton University. He worked at Bell Laboratories before joining Northwestern University in 1986 as Professor of Materials Science and Engineering and Professor of Electrical and Computer Engineering.