Architecting three-dimensional ZnO nanorods
  The fabrication of nanostructures with controlled assembly and architecture is significant for the development of novel nanomaterials-based devices. In this work we demonstrate that laser techniques coupled with low-temperature hydrothermal growth enable complex three-dimensional ZnO nanorods patterning on various types of substrates and geometries. The suggested methodology is based on a procedure involving the 3D scaffold fabrication using Multi-Photon Lithography of a photosensitive material, followed by Zn seeded Aqueous Chemical Growth of ZnO nanorods. 3D, uniformly aligned ZnO nanorods are produced, exhibiting electrical conductance and highly efficient photocatalytic performance, providing a path to applications in a diverse field of technologies. 
Argyro N. Giakoumaki, George Kenanakis, Argyro Klini, Zacharias   Viskadourakis, Maria Farsari, and Alexandros Selimis
cond-mat.mes-hall cond-mat.mtrl-sci