The book "CFN Lectures on Functional Nanostructures - Volume 2" is part of a series that presents selected and edited lectures from summer schools of the Center for Functional Nanostructures (CFN) at the University of Karlsruhe. This series aims to convey current research findings in the fields of nanophotonics, nanoelectronics, molecular nanostructures, and nanostructured materials. The summer schools promote the exchange of new ideas and the illustration of emerging research methods through a series of thematic introductory lectures. This volume focuses on nanoelectronics, which is reflected in both the selection of topics covered and the educational nature of the contributions.