Optical properties of ZnO cone arrays and influence of annealing on optical properties of ZnO-Zn coaxial nanocables

Xinhai Han; Guanzhong Wang; Jiansheng Jie; Qingtao Wang; Dapeng Li

doi:10.1117/12.574752

9 February 2005 Optical properties of ZnO cone arrays and influence of annealing on optical properties of ZnO-Zn coaxial nanocables

Xinhai Han, Guanzhong Wang, Jiansheng Jie, Qingtao Wang, Dapeng Li

Author Affiliations +

Proceedings Volume 5635, Nanophotonics, Nanostructure, and Nanometrology; (2005) https://doi.org/10.1117/12.574752
Event: Photonics Asia, 2004, Beijing, China

Abstract

The novel ZnO cone arrays with controllable morphology and ZnO-Zn coaxial nanocables have been synthesized by thermal evaporating metal Zn powders at low temperature of 570°C without a metal catalyst. The ZnO cone arrays were grown on the Si (100) substrates, and clear structure evolutions were observed using scanning electron microscopy: well-aligned ZnO nanocones, double-cones with growing head cones attached by stem cones, cones with straight hexagonal pillar were achieved as the distance between the source and the substrates increased. X-ray diffraction showed that all of the cone arrays grow along c-axis. Raman and photoluminescence spectra revealed that the optical properties of the buffer layer between the ZnO cone arrays and the silicon substrates are better than those of ZnO cone arrays. ZnO-Zn nanocables were achieved in the region down stream with a temperature of 300°C. The PL measurements of the ZnO-Zn nanocables reveal a UV peak at 382nm corresponding to the free exciton emission originating from the ZnO shells, while violet luminescence centered around 424 and 431 nm are observed after annealed in Ar and air, respectively. The growth mechanisms of the ZnO cone arrays and ZnO-Zn nanocables are proposed.

Citation Download Citation

Xinhai Han, Guanzhong Wang, Jiansheng Jie, Qingtao Wang, and Dapeng Li "Optical properties of ZnO cone arrays and influence of annealing on optical properties of ZnO-Zn coaxial nanocables", Proc. SPIE 5635, Nanophotonics, Nanostructure, and Nanometrology, (9 February 2005); https://doi.org/10.1117/12.574752

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available