Abstract
In this paper we will demonstrate the growth of crystalline ZnO nanorods on different substrates including some of crystalline as well as amorphous nature. The application of these ZnO nanorods to optoelectronics and to bioelectronics will be highlighted. We demonstrate the fabrication of n-ZnO nano-rods/p-type substrates and fabricated light emitting diodes (LEDs) based on these structures. Among the presented LEDs, a hybrid configuration based on the integration of p-type polymers on flexible plastic provides a potential for developing large area white LEDs. Moreover, ZnO nanorods based intracellular measurements using bare and functionalized ZnO surfaces were demonstrated to be a valuable non-destructive tool for obtaining intracellular measurements paving the way for a wealth of intracellular information.