SEMICONDUCTOR ELEMENT AND MANUFACTURING METHOD OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor element and the like, which has high quantum efficiency within a region from near infrared to infrared.SOLUTION: A semiconductor element comprises: a substrate 1; a plurality of pairs of multiquantum well structures 3 by coupling an a layer and a b layer as one pair; and a crystal adjustment layer 2 located between the substrate 1 and the multiquantum well structure 3. The crystal adjustment layer 2 includes: a first adjustment layer 2a which is composed of a material the same with that of the substrate 1 and contacts the substrate 1; and a second adjustment layer 2b which is composed of a material the same with the a layer or the b layer and contacts the multiquantum well layer.