Faculty

Eugene A. Fitzgerald

 

Disciplines

Research

Prof. Fitzgerald's group's research activities attack the current limitations of electronic materials, especially limitations created by imperfections in materials such as point, line, and planar defects. Much of the group's efforts are focused on lattice-mismatched semiconductor systems, in which layers in electronic materials and devices have different lattice parameters. Such material combinations have potential in printing, storage, display, communications, and interconnect applications. But the utility of these materials depends on our ability to understand and eliminate crystalline defects which can be generated due to the lattice-mismatch between semiconductor layers. Current projects involve the fabrication of GeSi/Si detectors and InGaAs/GaAs emitters which may be used in fiber-to-the-home applications; GeSi/Si structures for integrated, micro-mechanical devices; visible AlInGaP LEDs and lasers integrated on Si and GaAs; III-V microwave transistors integrated on Si; III-V solar cells integrated on Si; basic studies concerning the generation, propagation, and interaction of defects in these heterostructures; and investigations of microscopic failure mechanisms in optoelectronic and electronic devices.

Selected Publications

"Necessity of Ga Pre-layers in GaAs/Ge Growth Using Gas-Source Molecular Beam Epitaxy," Appl. Phys. Lett. 64, 733, 1994 (with others).

"GeSi/Si Nanostructures," Annu. Rev. Mater. Sci. 25: 417–54, 1995.

"Novel dislocation structure and surface morphology effects in relaxed Ge/Si-Ge(graded)/Si structures," J. Appl. Phys. 81, 3108, 1997 (with S.B. Samavedam).

"Line, Point, and Surface Defect Morphology of Graded, Relaxed GeSi Alloys on Si Substrates," Thin Solid Films 294, 3, 1997 (with S.B. Samavedam).

"Influence of Strain on Semiconductor Thin Film Epitaxy," J. Vac. Sci. Tech. A 15, 1048, 1997 (with others).

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Controlling heat flow through a nanostructure
MIT researchers find that heat moving in materials called superlattices behaves like waves; finding could enable better thermoelectrics.
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Prof. Fitzgerald honored by IEEE
IEEE, the Institute of Electrical and Electronics Engineers, has honored Prof. Gene Fitzgerald as a co-recipient of the Andrew S. Grove Award.
July 7, 2010
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The MIT Energy Initiative's second round of seed grants for energy research, announced this week, will go toward a wide array of research topics ranging from micro-hydropower and solar-thermal powe
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Related Events

MLB with Faculty Speakers
Friday, October 7, 2011 - 5:00pm to 6:00pm

Mini-talks by the following DMSE professors:
* Prof. Silvija Gradecak - "Nanomaterials for energy applications"

DMSE faculty participate in ILP conference
Wednesday, November 13, 2013 - 8:00am to Thursday, November 14, 2013 - 5:00pm