|Conţinutul numărului revistei|
| SM ISO690:2012|
KOROTCENKOV, Ghenadie; HAN, S.D.; NAZAROV, Mihail. Cathodoluminescence emission study of nanostructured SnO2 films deposited by spray pyrolysis . In: Moldavian Journal of the Physical Sciences. 2008, nr. 1(7), pp. 48-54. ISSN 1810-648X.
|Moldavian Journal of the Physical Sciences|
|Numărul 1(7) / 2008 / ISSN 1810-648X /ISSNe 2537-6365|
In this paper the results of cathodoluminescence (CL) emission study of undoped and
doped SnO films are discussed. SnO films were deposited by spray pyrolysis method. It was
shown that the study of CL emission is effective method for structural characterization of
metal oxides aimed to gas sensor applications. It was concluded that the changes taking place
in CL spectra are connected with the change of both the grain size and the crystallinity (stoichiometry) of the surface layer and the bulk of SnO . The shape of CL spectra depends
on correlation between well-crystallized core and disordered surface layer. It was found that
doping is accompanied by deterioration of film crystallinity and the growth of concentration
of structural defects responsible for unradiative recombination of excited electrons and holes.