Temperature and back-gate bias influence on the operation of lateral SOI PIN photodiodes

Abstract

This paper presents a study of back-gate bias and temperature influence on the operation of lateral SOI PIN photodiodes. Experimental results showed that the operation mode of the photodiodes is affected by back-gate bias, modifying the photogenerated current, which has a strong influence on the illuminated to dark ratio, as well as, on the quantum efficiency. At lower temperatures, the results showed that the quantum efficiency can be improved by biasing the device in inversion mode, while at higher temperatures, the accumulation mode showed a higher illuminated to dark ratio.