Heteroepitaxial Growth of ZnO Nanorod Arrays on GaAs (111) Substrates by Electrochemical Deposition
Author(s)
Zeng, Hai
Bando, Yoshio
Xu, Xi Jin
Li, Liang
Zhai, Tian You
Fang, Xiao Sheng
Golberg, Dmitri
Griffith University Author(s)
Year published
2010
Metadata
Show full item recordAbstract
Heteroepitaxial growth of well-aligned ZnO nanorod arrays on GaAs (111) substrates was achieved through electrochemical deposition at low temperature without any buffer layers for the first time. Structural analysis demonstrated the epitaxial orientation relationship of ZnO(0001)//GaAs(111). The rod density was dependent on the applied current density. These ZnO nanorods had high crystalline quality andexhibited strong UV near-edge photoluminescence with a 106 meV full-width at half-maximum and very weak deep level emission. Furthermore, the patterned growth was facially implemented by using surface masks on cathode substrates. ...
View more >Heteroepitaxial growth of well-aligned ZnO nanorod arrays on GaAs (111) substrates was achieved through electrochemical deposition at low temperature without any buffer layers for the first time. Structural analysis demonstrated the epitaxial orientation relationship of ZnO(0001)//GaAs(111). The rod density was dependent on the applied current density. These ZnO nanorods had high crystalline quality andexhibited strong UV near-edge photoluminescence with a 106 meV full-width at half-maximum and very weak deep level emission. Furthermore, the patterned growth was facially implemented by using surface masks on cathode substrates. These results are envisaged to advance the development of ZnO nanorod-based heterojunctions and their applications in optoelectronics.
View less >
View more >Heteroepitaxial growth of well-aligned ZnO nanorod arrays on GaAs (111) substrates was achieved through electrochemical deposition at low temperature without any buffer layers for the first time. Structural analysis demonstrated the epitaxial orientation relationship of ZnO(0001)//GaAs(111). The rod density was dependent on the applied current density. These ZnO nanorods had high crystalline quality andexhibited strong UV near-edge photoluminescence with a 106 meV full-width at half-maximum and very weak deep level emission. Furthermore, the patterned growth was facially implemented by using surface masks on cathode substrates. These results are envisaged to advance the development of ZnO nanorod-based heterojunctions and their applications in optoelectronics.
View less >
Journal Title
European Journal of Inorganic Chemistry
Volume
2010
Issue
27
Subject
Condensed Matter Modelling and Density Functional Theory
Inorganic Chemistry
Other Chemical Sciences