One-step fabrication method for obtaining freestanding epitaxial double heterostructure is presented. This approach could achieve ZnO coverage with a higher number density than that of the epitaxial single heterostructure, leading to a piezoelectric nanogenerator with an increased output electrical performance.
Shin, D., Kang, S. H., Kim, S., Seung, W., Tsege, E. L., Kim, S., Kim, H. K., Hong, S. W., Hwang, Y. Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal. J. Vis. Exp. (107), e53491, doi:10.3791/53491 (2016).