Enhancement of Frequency Responsibility of Si PIN-PD via Additional Red Phosphor Film
Ordinarily, the Si PIN photodiode tends to be more responsive to the NIR or red light than blue light or NUV light. Here, we studied the role of an additional red phosphor film on the enhancement of NUV 375 nm responsibility of Si PIN photodiode. The experimental results show that the red phosphor film can effectively improve the responsibility and sensitivity of Si PIN photodiode. Meanwhile, the bandwidth of the frequency response of such a photodetector is not significantly affected by the red phosphor.