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Richard Kiehl moved to the University of California, Davis in January 2008. His current information can be found at the website for the UC Davis Department of Electrical and Computer Engineering, or by following this link.

Richard A. Kiehl joined the University of Minnesota as professor of Electrical and Computer Engineering in May of 1999.  From 1996 to 1999 he was acting professor of Electrical Engineering at Stanford University.  From 1992 to 1995 he was assistant director of the Quantum Electron Device Laboratory at Fujitsu Laboratories Ltd, Japan.   Prior to that he was a member of technical staff at the IBM T. J. Watson Research Center (1985-1992), AT&T Bell Laboratories, Murray Hill (1980-1985), and Sandia National Laboratories (1974-1980). He received the Ph. D. degree from the School of Electrical Engineering, Purdue University.

 

Nanoelectronics & Bio-Nanotechnology Research

Kiehl explores new device concepts, circuit architectures, and self-assembly techniques for the development of nanometer-scale electronics for information processing, signal processing, and sensing applications.  His work draws on extensive experience at industrial research labs in developing high performance electronics exploiting new materials, novel device structures, and unconventional fabrication techniques in GaAs-based and Si-based heterostructure field-effect transistors.   A new theme in his research is the exploration of novel concepts at the interface between nanoscale electronics and biological systems.

An example of the information processing side of his work is the investigation of nanoscale circuitry based on a radically different approach in which the electrical phase of a locked tunneling process, or another dynamical process, is used to represent the logic state in a nanometer-scale device. 

Device concepts for such circuitry based on Coulomb blockade in nanoparticles and electrical activity in organic molecules are being investigated theoretically and experimentally. Metal-molecule-metal junctions exhibiting negative differential resistance are of particular interest because of their potential for highly scaled self-assembled circuitry.

He also studies the electrical characteristics of nanoscale FET's based on carbon nanotubes and ZnO nanowires, where e-beam lithography and scanning probe techniques are used for nanoscale fabrication and characterization.

An example of his research at the interface between nanoscale electronics and biological systems is the use of DNA as a scaffolding for self-assembling nanoparticles, carbon nanotubes, and molecules into electronic circuitry. This approach could be used to integrate novel devices at densities far beyond those possible with lithographic techniques. His collaborative studies of biologically based self-assembly also include the use of peptides and proteins.

In addition to his focus on new technologies for information processing, he is also intersted in exploiting the unique characteristics of nanoscale devices (e.g., sub-electron charge sensitivity in single electron transistors and magnetic & plasmonic interactions in nanoparticle arrays) together with the capabilities of nanoscale self-assembly for biomolecular sensing, imaging and other applications.

Kiehl's research is unusually interdisciplinary in nature.  He collaborates with faculty and students in electrical & computer engineering, physics, chemistry, chemical engineering & materials science, and biochemistry - both within U of M and with colleagues at other universities.  

He created the interdisciplinary center MONALISA (Molecular Nanoscience Alliance for Interdisciplinary Studies and Activities), at the U of M to foster interdepartmental collaboration in nanoscience based on molecular systems. He is theme leader for "Nanoscale Architectures and Information Processing Paradigms" for the industry-supported MARCO Focus Center on Functionally Engineered Nano Architectonics (FENA). He is also principal investigator for the new DoD Multidisciplinary University Research Initiative (MURI) on "Biologically Assembled Quantum Electronic Arrays".
 

Contact Rick for further details:

Prof. Richard A. Kiehl 
University of Minnesota 
Electrical and Computer Engineering
200 Union St. SE
Minneapolis, MN  55455-0154

 

kiehl@ece.umn.edu

Office: EE/CSci Building, Room 6-129

Phone :  (612) 625-8073
Fax     :  (612) 625-4583

 

Last modified on August 2, 2007.