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![]() ![]() They are more capable of changing light energy intoĮlectrical energy as compared to homojunction.Structures exhibit large conversion efficiency. Thereby, providingĪ heterojunction structure. However, in recent times, these are constructed using. ![]() Resultantly provides homojunction structure. Initially, phototransistors were fabricatedįrom silicon or germanium as their basic material that The light is allowed to incident at the base collector.constructional structure of an NPN Phototransistor:.It operates on the principle of Photoelectric.It is a 3-layer semiconductor device that consists of.A Phototransistor is a device that has the ability toĭetect the level of the incident radiation andĪccordingly change the flow of electric current. ![]()
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