AVS 52nd International Symposium
    Nanometer-Scale Science and Technology Tuesday Sessions
       Session NS-TuP

Paper NS-TuP33
Synthesis of One-dimensional Well-aligned ZnO Nanorods on Patterned Structures

Tuesday, November 1, 2005, 4:00 pm, Room Exhibit Hall C&D

Session: Nanometer Scale Science and Technology Poster Session
Presenter: C.W. Wang, National Tsing Hua University, Taiwan, ROC
Authors: C.W. Wang, National Tsing Hua University, Taiwan, ROC
J.H. He, National Tsing Hua University, Taiwan, ROC
L.J. Chen, National Tsing Hua University, Taiwan, ROC.
G.C. Wu, National Taiwan Normal University, Taiwan, ROC
C.T. Chia, National Taiwan Normal University, Taiwan, ROC
Correspondent: Click to Email
The synthesis of one-dimensional (1D) semiconducting oxide nanomaterials has drawn a great deal of attention. ZnO has a wurtize structure with applications in catalysts, sensors, actuators and transducers. Under controlled conditions, 1D well-aligned ZnO nanorods are synthesized by a simple vapor transport via vapor-liquid-solid (VLS) process on patterned single crystal (11-20) sapphire. The patterning methods include atomic force microscope-tip induced technique and nanosphere lithography. From FESEM images, ZnO nanorods are vertically aligned on the substrate and have uniform diameter of about 100 nm. From TEM images, ZnO nanorods are single crystal and grown along c-axis. Photoluminescence measurements show that a peak occurs at 380 nm which is attributed to band edge emission.