Welcome to Jaewu Choi's Group

The nano Devices & Systems Laboratory (nDSL) at Wayne State University aims at understanding the fundamental science of one-dimensional systems and nano-structures and developing electronic device technologies at single molecular or nanometer scale. One dimensional molecular and nano-structural building blocks, such as ferroelectric polymers, conducting polymers, biomolecules and carbon nanotubes, have unique and attractive physical properties such as diverse functionalities, scalability, chemical inertness, self-organization and built-in interconnection and are intrinsically small enough to make high density and high speed devices but large enough for easy manipulation and integration. The nano Devices & Systems Laboratory (nDSL) challenges to identify the electronic, structural, and physical properties of a single molecular system, to identify electrical transport properties of a single molecular system, to understand and manipulate the physics at the interface between a single molecular system and electrode, to develop desired functional devices from a single molecular system and/or heterostructures of single molecular systems, and to integrate single molecular devices into large scale to bridge nanoscale world to macroscale world. To successfully implement the challengeable tasks, diverse fabrication and characterization methods are employed and developed such as point probe methods (variable temperature ultra-high vacuum scanning probe microscopes (VT-UHV-SPM) and a home-built nanomanipulator with four nanoprobes), chemical and physical processing and thin film facilities, MEMS facilities, and self-assembly methods. Technological goal is developing high density, high speed, light, flexible electronics, flexible displays, and flexible and efficient power source. Currently, research on single molecular electronics, carbon nanotube gas sensor, photonic devices, and microscale polymeric fuel cell systems has been actively progressed.