# Charlie Johnson

Alan T. charlie johnson is an American physicist, professor of Physics and Astronomy at the University of Pennsylvania, and the Director of the Nano/Bio Interface Center at the University of Pennsylvania.Johnson's research spans experimental nanoscale physics, which combines nanotechnology and biophysics. His research is involved specifically in transport within nanostructures and carbon nanotubes, which revolves around graphene, DNA, synthetic proteins, and other biomolecules. His research also involves the development of scanning probe techniques to measure electronic properties in nanomaterials and nanodevices.Johnson is also the Founding Executive Editor of AIP Advances and the co-founder of Graphene Frontiers, LLC. == Education == Johnson received his B.S. in Physics from Stanford University in 1984 before going on to earn his Ph.D. in Physics from Harvard in 1990, under the supervision of Michael Tinkham.