High-sensitivity SrTiO3 photodetectors with paralleled multiple interdigital electrode cells.
Appl Opt
; 52(15): 3473-6, 2013 May 20.
Article
en En
| MEDLINE
| ID: mdl-23736231
We report high-sensitivity SrTiO(3) photoconductive detectors with multiple photoelectric cells connected in parallel. The photocurrent of the detectors increases significantly with an increase of the cell number. The photocurrent responsivity of the detector with three cells can reach 237 mA/W at 10 V bias under illumination of the 375 nm laser, and the corresponding quantum efficiency is 77% at 10 V bias. Furthermore, a transient photovoltaic signal with a rise time of ~490 ps and a full width at half-maximum of ~900 ps is obtained. These results demonstrate that the present devices with further improvement of performance have great potential application in high-sensitivity and ultrafast ultraviolet photodetectors.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
Appl Opt
Año:
2013
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
Estados Unidos