What is the difference between photoemissive , photovoltaic and photo – InterviewSolution

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1.	What is the difference between photoemissive , photovoltaic and photo conductive cells ? Explain in detail.
Answer» ovoltaic mode the PHOTODIODE is zero biased. The FLOW of current out of the device is restricted and a voltage builds up. This mode of operation exploits the photovoltaic effect, which is the basis for solar CELLS. The AMOUNT of dark current is kept at a minimum when operating in photovoltaic mode.In photoemissive type devices, once the radiation drops over a cathode can cause emission of electrons from the cathode PLANE. photoelectric-transducer. The output of the PV cells can generate a voltage which is relative to the intensity of radiation.

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