Sb-doped Zn1-xMgxO films were grown on c-plane sapphire substrates by radio-frequency magnetron sputtering. The p-type conduction of the films (0.05≤x≤0.13) was confirmed by Hall measurements, revealing a hole concentration of 1015–1016 cm-3 and a mobility of 0.6–4.5 cm2/V s. A p-n homojunction comprising an undoped ZnO layer and an Sb-doped Zn0.95Mg0.05O layer shows a typical rectifying characteristic. Sb-doped p-type Zn1-xMgxO films also exhibit a changeable wider band gap as a function of x, implying that they can probably be used for fabrication of ZnO-based quantum wells and ultraviolet optoelectronic devices.
Published in:
Applied Physics Letters
(Volume:89
,
Issue:
20
)
Date of Publication:
Nov 2006
- Page(s):
-
202102
-
202102-3
- ISSN :
-
0003-6951
- Digital Object Identifier :
-
10.1063/1.2388254
- Product Type:
-
Journals & Magazines
- Date of Current Version :
-
18 June 2009
- Issue Date :
-
Nov 2006