Growth by the Multi-tube Physical Vapour Transport method and characterisation of bulk (Cd,Zn)Te

Growth by the Multi-tube Physical Vapour Transport technique and characterisation of bulk (Cd,Zn)Te is described. The crystalline perfection and uniformity of zinc content have been mapped by infra-red transmission and microscopy, X-ray diffraction and photoluminescence. X-ray double crystal rocking curve full widths at half maximum as low as 43 in have been obtained and a mean zinc mole fraction of 0.03 has been found to vary by less than ±0.003 over the diameter of a 50 mm boule. The material exhibits a resistivity in the 2×109Ωcm range and planar devices fabricated from this material have shown electron mobility lifetime products of 4.07×10−3 cm2 V−1.

► Bulk (Cd,Zn)Te grown by Multi-tube Physical Vapour Transport.
► Uniform zinc distribution.
► High resistivity.
► High mobility lifetime.