Investigate on Structure and Optical Properties of ZnO Nanostructures Grown on a-GaN/r-Sapphire.
J Nanosci Nanotechnol
; 18(3): 2072-2074, 2018 Mar 01.
Article
en En
| MEDLINE
| ID: mdl-29448715
ABSTRACT
ZnO nanostructures were directly grown on a-GaN/r-sapphire with different growth time via aqueous method. Structural and optical properties of the nanostructures were investigated by using a variety of techniques including X-ray diffraction (XRD), scan electron microscope (SEM), room-temperature photoluminescence (PL), and Raman scattering. The results showed the growth mechanism of ZnO nanostructures grown on a-GaN is Volmer-Weber (VW) mode, which is due to the high interfacial free-energy between a-plane ZnO and GaN. Meanwhile, compressive strains were revealed to exist by the optical characterizations. And the strengths were found to reduce with increasing growth time.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
J Nanosci Nanotechnol
Año:
2018
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA