Patent ID: 8835853
Filing Date: 2014-09-16
Classification: G01J,G01N,H01L

Abstract:
1. A photoconductive element, comprising: a semiconductor substrate; a semiconductor low temperature growth layer; electrodes provided on the low temperature growth layer; and a semiconductor layer, which is positioned between the semiconductor low temperature growth layer and the semiconductor substrate and which is thinner than the semiconductor low temperature growth layer, wherein the semiconductor layer is a layer grown at a growth temperature of 400° C. or more and 700° C. or less, and the semiconductor layer includes a first layer and a second layer, wherein the semiconductor low temperature growth layer includes a semiconductor which lattice-matches with the semiconductor layer and does not lattice-match with the semiconductor substrate, and wherein the first layer is in contact with the semiconductor low temperature growth layer, the first layer includes a semiconductor which lattice-matches with the semiconductor low temperature growth layer and does not lattice-match with the semiconductor substrate, the second layer is positioned between the first layer and the semiconductor substrate, the second layer includes a semiconductor which lattice-matches with the semiconductor low temperature growth layer and does not lattice-match with the semiconductor substrate, and the semiconductor in the first layer is different from the semiconductor in the second layer.