What is the difference between photovoltaic and photoconductive

Photoconductive Transducer or Cell Photovoltaic Transducer or Cell When a photoconductive semiconductor element is subjected to radiation, its resistance changes i. Due to this, the flow of current through the cell increases. When radiations fall on a photovoltaic cell, it generates a voltage whose value is proportional to the intensity of radiation incident on the cell.

Thus, it converts electromagnetic energy into electrical energy. Facebook Twitter. Previous Post Next Post. Contact Form. When a photoconductive semiconductor element is subjected to radiation, its resistance changes i.

They are highly sensitive to small changes in light intensity, they exhibit a high change in their resistance. These cells do not respond to radiations having a wavelength less than nm. The spectral response of these cells ranges from nmnm. Photovoltaic cells are also stable but they are seriously affected by temperature.

AC coupling refers to a photodiode arrangement with a capacitor that acts as a low-pass filter in order to remove the DC offset e. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. What is the difference between photoconductive and photovoltaic detectors? Ask Question. Asked 3 years, 9 months ago.

Active 1 year, 4 months ago. Viewed 5k times. References are much appreciated. Improve this question. Add a comment. Active Oldest Votes. Improve this answer. Otherwise we don't know the context of the question.

In that case both are hooked up to an amplifier. Olin Lathrop Olin Lathrop To appreciate the difference it may help to start with an IV characteristic from the TU delft link : A reverse bias means operating the device to the left of the x-axis. Green Apples Green Apples 4 4 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. December 6th, The difference between these two classifications is that photoconductive detectors use the increase in electrical conductivity resulting from increases in the number of free carriers generated when photons are absorbed generation of current , whereas photovoltaic current is generated as a result of the absorption of photons of a voltage difference across a p-n junction generation of voltage.

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