Patent ID: 9068276
Filing Date: 2015-06-30
Classification: C30B,Y10T

Abstract:
1. A method of growing a single crystal KPb 2 Cl 5 material in a growth furnace comprising an upper zone set at 480° C., said method comprising: providing a device comprising an axis, the device comprising a conical plug comprising a first portion defining a first conical hole about the axis, the first conical hole having a first angle, the conical plug comprising a second portion contiguous with the first portion and defining a second conical hole about the axis, the second conical hole having a second angle having the same sign as the first angle and being greater than the first angle, the conical plug comprising a third portion contiguous with the second portion and defining a cylindrical hole; the device comprising an upper tube comprising the conical plug fused therein; the device comprising a seeding well plug defining a cylindrical bole about the axis; the device comprising a lower tube comprising the seeding well plug fused therein, the lower tube being operable to mate with the upper tube such that the conical plug abuts the seeding well plug; placing an oriented single crystal KPb fitting the upper tube over the lower tube; filling the upper tube at least part way with KPb placing the upper tube and the lower tube in an ampoule; melting the KPb freezing the melt; and growing a single crystal KPb