Small-sized UV radiometer on the basis of schottky diodes



Publication Details

Rosenfeld, A. B., Ryzhikov, V. D., Onyshchenko, G. M., Galkin, S. M., Opolonin, O. D., Lysetska, O. K., Perevertaylo, V. L., Piven, L. A., Voronkin, E. F. & Zenya, I. M. (2011). Small-sized UV radiometer on the basis of schottky diodes. Radiation Measurements, 46 (12), 1666-1670.


In this work, main characteristics are considered of photosensitive Schottky diode structures – n-type ZnSe(Te,X)/Ni, where Х = O or Al, which are promising as ultraviolet radiation detectors in the 200–480 nm range. The Schottky barrier-based sensors show good sensitivity in the short-wave regions of the ultraviolet range, are practically insensitive to solar radiation at wavelengths above ∼460 nm, have rather short response time (∼1 ns) and quantum efficiency of up to 70%. Typical values of the monochromatic current sensitivity Sλ in the 420–440 nm range is 0.1–0.15 А/W. Characteristics were studied of detectors using glass and interference light filters for singling out biologically active regions of A, B and C of ultraviolet spectrum. Testing results of our ultraviolet radiometer have shown that the developed experimental sample meets the requirements to the instruments of this class.

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