The Heterogeneous Integration Research Group is focused on the understanding and development of processes for the integration of dissimilar materials at both the micro and nano scales to enable the fabrication of novel microsystems, devices and nanocomposite materials.
Hierarchical Heterogeneous Integration
Any practical complex machine must be assembled and integrated at multiple scales, ranging from nano, to micro, to macro. The nanoscale provides opportunities for enhanced materials performance, the microscale brings various materials platforms together, and the macroscale enables interaction with the outside world.
Current research areas include solid-state lighting, thermoelectric cooling, thermionic and thermoelectric approaches to direct electrical power generation, nanoelectronics, and macroelectronics. Major themes include laser processing (deposition, etching, bonding and layer transfer), heteroepitaxy, nitride nanostructures, nanostructured solid-state energy conversion devices, and electrochemical synthesis of self-organized nanostructures.
"Controlled Growth of Ordered Nanopore Arrays in GaN", I.H. Wildeson, D.A. Ewoldt, R. Colby, E.A. Stach and T.D. Sands, Nano Letters 11, pp. 535-540, (2011).
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