E. Sheregii et al., CREATION OF A PN HETEROJUNCTION IN HG1-XCDXTE (X-APPROXIMATE-TO-0.2) BY LASER ANNEALING, Canadian journal of physics, 73(3-4), 1995, pp. 174-176
A highly photosensitive diode area was created in solid solutions of H
g1-xCdxTe (x approximate to 0.2) (MCT) without melting its surface. Th
e idea of the possible formation of pn heterojunctions, which was indi
cated by computer modelling of the mass transportation processes under
laser treatment of the MCT, was experimentally realized. MCT samples
were irradiated with an Nd:YAG laser having an energy density of 0.7 J
cm(-2). The presence of a heterojunction on a surface not far below t
he upper surface has been verified by photovoltaic measurements and X-
ray microanalysis as well as by current-voltage characteristics.