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Seminar Series
March 20, 2009 Friday, 3:00PM Cosponsored by ECE, Physics, and the Center for Nanotechnology |
Dr. Theodore Moustakas Nitride Semiconductors and their Applications |
| Abstract: The first part of the talk will address the materials science problems related to the optimization of this important family of semiconductors for optoelectronic applications. Such problems include the hetero-nucleation on foreign substrates since native substrates are unavailable, the formation and propagation of extended defects, the intentional n-and p-type doping, the bulk and surface electronic structure, alloy phenomena such as phase separation and atomic ordering and the formation of heterostructures and metal contacts. In the second part of the talk I will review the progress over the past several years in the areas of optical, electronic and electromechanical devices. In particular the role of spontaneous and piezoelectric polarization in the design of electronic and optical devices will be addressed. Recent efforts to develop emitters in non-polar or semi-polar directions will be discussed. Finally, the potential of these materials for energy applications such as Solid State Lighting and Photovoltaics will be briefly discussed. Biography: Dr. Moustakas received his Ph.D. in Solid State Science and Engineering from Columbia University in 1974. He was a Research Fellow at Harvard University from 1974-1977 and a senior scientist at Exxon Corporate Research Laboratories from 1977-1987. He joined Boston University in 1987 as a Professor of Electrical and Computer Engineering. He holds joint appointments in the Physics Department and the Division of Materials Science and Engineering. Dr. Moustakas’ research contributions cover a broad spectrum of topics in opto-electronic materials and devices, including nitride semiconductors, amorphous semiconductors and diamond thin films. He published 290 scientific papers in these areas and edited a number of books including the two volumes of GaN I and GaN II in the series Semiconductors and Semimetals (Academic Press). He was awarded 25 US Patents. Intellectual property that resulted from his work has been licensed to a number of companies, including the two major manufactures of blue LEDs and lasers (Cree and Nichia). His work is cited in the 2006 edition of Technology Transfer works: 100 cases from research to realization, in Better World Project (www.betterworldproject.net). Dr. Moustakas is a Fellow of the American Physical Society and the Electrochemical Society. In 2003 he was awarded an honorary doctoral degree from the Aristotle University for outstanding contribution to research and teaching.
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