NAMI group at the University of Southern California focuses on research in nanoscale materials and electronics. The research activities of the group include, but are not limited to, the synthesis and characterization of nanomaterials and structures, and development of novel devices with low power consumption, enhanced operation speed, versatile functionalities and high integration density.

As one of the national initiative, nanotechnology, which exploits materials of dimension smaller than 100 nanometers, is addressing the challenge of the present microelectronic industry and offering exciting new possibilities. This is in accord with Richard Feynman's speech back in 1959, when he described "to synthesize nanoscale building blocks with precisely controlled size and composition, and assemble them into larger structures with unique properties and functions." This vision has continued to spark the imagination of generations of scientists.

 

Research Interest

To study the fundamental physical properties of nanostructure materials and the mesoscopic charge and spin transport in nanoscale hybrid structures, and to develop future applications in electronic, magnetic, and optical devices. More specifically, they include:
Fabrication of nanostructures: Bottom-up self-assembly techniques using chemical vapor deposition and electrodeposition for the synthesis of metallic and semiconducting nanomaterials; top-down techniques (photo/E-beam/STM lithography, focused ion-beam, etc.) for fabrication of nanostructures and systems.

 

 


Characterization of physical properties of nanostructures: Structural characterization using electron microscopies, scanning probe microscopy, XRD, EDX, etc.; optoelectronic characterization (photoluminescence, photoconductance); low noise charge and electric/spin transport measurements at cryogenic temperatures and high magnetic fields.

Implementation of devices and systems for nanoelectronics applications: Memory elements and logic gates; nanoscale optical, chemical and biological sensors; single electron transistors; spintronic devices; superconducting junctions; Solar Cells.

 

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