Article Title

Growth and optical applications of centimeter-long ZnO nanocombs

Authors

Ke Yu, Key Laboratory for Polar Materials and Devices of Ministry of Education and Department of Electronic Engineering, East China Normal University, Shanghai 200241, China
Qiuxiang Zhang, Department of Electronic Engineering, Shanghai Jianqiao College, Shanghai 201319, China
Jin Wu, Key Laboratory for Polar Materials and Devices of Ministry of Education and Department of Electronic Engineering, East China Normal University, Shanghai 200241, China
Lijun Li, Key Laboratory for Polar Materials and Devices of Ministry of Education and Department of Electronic Engineering, East China Normal University, Shanghai 200241, China
Yue Xu, Key Laboratory for Polar Materials and Devices of Ministry of Education and Department of Electronic Engineering, East China Normal University, Shanghai 200241, China
Shaohua Huang, Surface Physics Laboratory, Department of Physics, Fudan University, Shanghai 200433, China
Ziqiang Zhu, Key Laboratory for Polar Materials and Devices of Ministry of Education and Department of Electronic Engineering, East China Normal University, Shanghai 200241, China

Keywords

Zinc oxide nanocombs, thermal evaporation, polarizer, grating

Abstract

Ultralong ZnO nanocombs have been synthesized on silicon substrates with a high growth rate of ~7 μm/s using a simple “thermal evaporation and condensation” method promoted by Cu catalysts. The lengths of the ZnO nanocombs range from several millimeters to more than one centimeter and the diameters of the branches are about 300 nm. The growth mechanism of the ultralong nanocombs and the catalytic behavior of the copper are discussed. The nanocombs were readily separated and their applications as optical polarizer and grating were investigated. The results show that the ultralong ZnO nanocombs can act as effective optical components in miniaturized integrated optics systems.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-008-8025-4

Publisher

Tsinghua University Press

Recommended Citation

Ke Yu,Qiuxiang Zhang,Jin Wu,Lijun Li,Yu’e Xu,Shaohua Huang,Ziqiang Zhu, Growth and optical applications of centimeter-long ZnO nanocombs. NanoRes.2008, 1: 221-228