Pulsed laser deposition growth of 3D ZnO nanowall network in nest-like structures by two-step approach

The PLD-grown 3D ZnO nanowall network has a very high surface-to-volume ratio and appears to be denser than the previously reported ZnO nanowall structures grown by other techniques. This makes the PLD-grown ZnO nanowall a very promising material as photoanodes in DSSCs and an excellent matrix for biomolecule binding for potential applications in biosensors.