PHOTODETECTORS BASED ON INTERBAND TRANSITION IN QUANTUM WELLS
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United States of America Patent
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app pub date -
Mar 2, 2016
filing date -
Jul 10, 2015
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Abstract
The present application relates to a photodetector based on interband transition in quantum wells. The photodetector may include a first semiconductor layer having a first conduction type; a second semiconductor layer having a second conduction type different from the first conduction type; and a photon absorption layer arranged between the first semiconductor layer and the second semiconductor layer, the photon absorption layer including at least one quantum well layer and barrier layers arranged on both sides of each quantum well layer. The present application utilizes the modulating effect of a semiconductor PN junction on a photoelectric conversion process associated with quantum wells to significantly increase a current output of the photodetector based on the quantum well material.
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