Electrical and optical properties of thin ZnO shell layers on GaP nanorods grown by pulsed laser deposition

Abstract

Pulsed laser deposition (PLD) is a deposition method which provides some special advantages in comparison with other traditional technologies used for thin films growth. One of them is ability to deposit thin films in wide range of composition on different substrates regardless of their chemical, electrical, mechanical or geometrical properties. The presented work deals with deposition of thin ZnO based coating layers on GaP nanorods. The layers were grown by using of PLD and the goal was to prepare a homogenous and continuous shell layer on GaP substrate as well as on GaP nanorods. The results showed that ZnO layers prepared on GaP nanorods exhibited homogenous thickness which can be controlled by the deposition time (the number of deposition pulses). On the other side, the method is sensitive on orientation of nanorods against the deposition plasma plume direction. The acquired results proved that PLD could serve as a promising deposition method for this presently frequent kind of task – homogenous coating of intricate nanostructured surfaces.