Informatics and Computing (SoIC)
Intelligent Systems Engineering Colloquium Series (ISE)
Speaker: Jun Yao, Harvard University
Where: Indiana Memorial Union, State Room West
When: Tuesday, April 11, 2017 at 2:30 PM
Title: Integrating Nanowires for Computing, Bio-sensing and Brain Interface
Abstract: The wide compositional, morphological, and surface properties achievable in synthesized nanowires afford unique performance advantages in devices ranging from computing to sensing elements. Post-synthetic control over the order and geometry of nanowires is central to device integration and realizing new functions. To this end, a novel ‘combing’ technique, by decoupling the force anchoring nanowires from force aligning them, has been developed to achieve the accurate control of both position and alignment in nanowires. This leads to the construction of complex computing architectures, exemplified by a nanocomputer featuring complexity beyond the start-of-art from bottom-up. Moreover, the ‘combing’ technique enables nanowire assembly in the vertical, off-substrate dimension, producing three-dimensional (3D) transistor structures capable of both mechanical and field-potential sensing, enabling the simultaneous electrical recording of action potential and mechanical contraction in cardiomyocytes. These assembled nanosensors are further integrated in porous and ultra-flexible electronic meshwork that can be injected through syringe into brain for engineering advanced neural interface.
Biography: Dr. Jun Yao holds a B.S. in Electrical Engineering (2003) and an M.S. in Physics (2006) from Fudan University in China. He received his Ph.D. in Applied Physics (2011) from Rice University with Prof. James M. Tour (and co-advisers Prof. Douglas Natelson and Prof. Lin Zhong). His Ph.D. research involved the discovery of the intrinsic memristive effect in silicon oxides and the implementation in application and commercialization. He then moved to Harvard University as a postdoctoral fellow working with Prof. Charles Lieber, focusing on the synthesis, assembly, fabrication and integration of nanomaterials for applications in electronics and bioelectronics.