Electric Field Assisted Growth of ZnO Nanorod Arrays
Paper ID : 1359-ICNS
Authors:
azin vasegh1, Mohammad Reza Golobostanfard *2, Hossein Abdizadeh3
1School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
2University of tehran
3University of Tehran
Abstract:
ZnO nanorod array grown perpendicular to the conductive substrate has aroused vast majority of interests in recent years due to their large variety of applications in photovoltaics, photocatalysis, water splitting, sensors, and light emitting diodes. In this study, electric field assisted growth of ZnO nanorod arrays is compared with that of chemical bath deposition (CBD) grown ZnO. For this purpose, the ZnO nanorod arrays are grown under electric field of 3 V in the same bath of CBD on pre-seeded fluorine doped conductive glass. The XRD patterns show that preferential growth is dramatically improved by applying electric field during deposition. Top view and cross sectional FESEM images of the samples confirm slightly higher diameter but much longer length of nanorods in case of electric assisted growth compared to CBD method. The mechanism of electro-assisted ZnO nanorod array are discussed by means of FESEM images in various time intervals of growth.
Keywords:
Electro-assisted growth; ZnO nanorod array; Chemical bath deposition; Preferential growth; Electrochemical deposition.
Status : Abstract Accepted (Poster Presentation)