ABSTRACT
This chapter introduces a nanoscale generator based on piezoelectric and semiconducting materials, mainly ZnO nanostructured materials, which include the irst nanogenerator based on conductive atomic force microscopy (AFM) technique scanning on ZnOnanowire (NB) arrays, power generation process of a singlecrystal ZnO wire/belt, direct current nanogenerator, high power output nanogenerator, and lateral designed nanogenerator and its building up. The detailed mechanism of energy harvesting of piezoelectric and semiconducting nanostructured materials is well discussed. The methods and designs for improving the output power are illustrated. Next-generation tine power source is highly expected from nanogenerators.
