| 摘要 |
PURPOSE:To make a polycrystal of HgCdTe alloy into a single crystal in a short time easily, by resealing a HgCdTe alloy which is converted into a polycrystal in a quartz ampule in another larger ampule, heat-trating it. CONSTITUTION:polycrystals of high-purity HgTe and CdTe are put in a quartz ampule, the quartz ampule is evacuated, they are melted under heating at a temperature higher than melting points of the compositions and annealed. Since the HgCdTe alloy solidified in it is not a perfect single crystal, and it together with a small amount of Hg is put in a larger quartz ampule and resealed. It is annealed at a temperature a little lower than the solidification temperature of the alloy, so that a totally integrated single crystal of HgCdTe is prepared in an annealing time less than half of the conventional process. |
