Photo-induced refraction of nanoparticulate organic-inorganic TiO_2-pHEMA hybrids

ZnO and Al doped ZnO thin film have been deposited on glass substrate by " spray plasma " process using an aqueous solution of Zn(NO 3) 2. XRD patterns revealed polycrystalline character with the typical hexagonal würtzite structure. The preferential c-axis orientation of crystallites depe...

Full description

Saved in:
Bibliographic Details
Published inOptical materials express Vol. 3; no. 5; pp. 533 - 545
Main Authors Uklein, Andrii, Gorbovyi, Pavlo, Traore, Mamadou, Museur, Luc, Kanaev, Andrey
Format Journal Article
LanguageEnglish
Published OSA pub 01.05.2013
Subjects
Condensed Matter
Materials Science
Optics
Physics
Online AccessGet full text

Cover

More Information
Summary:ZnO and Al doped ZnO thin film have been deposited on glass substrate by " spray plasma " process using an aqueous solution of Zn(NO 3) 2. XRD patterns revealed polycrystalline character with the typical hexagonal würtzite structure. The preferential c-axis orientation of crystallites depends highly on the operating conditions. Willamson-Hall method and AFM photographs showed a size of crystallites ranging between 20 and 80 nm and a roughness between 6 and 50 nm. Films exhibit a transmittance between 65 and 90% in the visible region. XPS revealed that the stoichiometry of deposited ZnO is Zn/O = 093. Fluorescence spectroscopy showed the presence of two bands at 360 nm (UV) and at 410 nm (Blue). The UV band can be attributed to exiton emission. Another important result concerns the non-existence of a " green " band at 500 nm.
ISSN:2159-3930
2159-3930
DOI:10.1364/OME.3.000533