The hole mobility of intentionally undoped p-type β-FeSi2 thin films grown by a multilayer method was investigated. With increasing annealing temperature and time, the hole mobility increased to approximately 450 cm2/V s at room temperature (RT). The observed hole mobility was analyzed by considering various carrier scatterings such as acoustic-phonon and polar-optical-phonon scatterings, intervalley scattering, ionized impurity scattering, and grain-boundary scattering. The nice fit of the mobility to the experimental results reveals that the polar-optical-phonon scattering determines the hole mobility at RT.
Published in:
Journal of Applied Physics
(Volume:97
,
Issue:
9
)
Date of Publication:
May 2005
- Page(s):
-
093716
-
093716-5
- ISSN :
-
0021-8979
- Digital Object Identifier :
-
10.1063/1.1891279
- Product Type:
-
Journals & Magazines
- Date of Current Version :
-
18 June 2009
- Issue Date :
-
May 2005