Longwave (λ0.5 = 9 - 15 μm) IR photodetectors based on InAsSbx solid solution (0.3 < x < 0.45) (ФизикА.СПб)
Аннотация
This paper presents the results of the study of photoelectric properties of photodetectors based on diode heterostructures based on InAsSbx solid solutions (0.3 < x < 0.45) with a longwave cut-off λ0.1 about 10.5 μm. The dependences of dark current density and detectivity in the temperature range 200 - 425 K were investigated. It was shown that the experimental samples are characterized by values of dark current density about 500 A/cm2 at room temperature, detectivity 1.2E9 and 5E9 cm∙Hz1/2∙W-1 at room temperature and 250 K, respectively, and diffusion mechanism of current flow up to 200 K.
Опубликован
2024-01-08