High-Quality ZnCdS Nanosheets Prepared Using Solvothermal Synthesis

Abstract EN

For the first time, ZnxCd1-xS nanosheets with different Zn and Cd ion concentrations were prepared using solvothermal synthesis at 200°C for 4 and 24 h.

The crystalline structure of the nanosheets was wurtzite.

The optical band gaps of the nanosheets increased with increasing Zn ratio; this increase is consistent with the band gaps estimated using Vegard’s formula.

The photoluminescence spectra for the 24 h nanosheets had higher emission intensities than those for the 4 h nanosheets.

The emission band corresponding to intrinsic near-band-edge emission and a broad peak associated with extrinsic deep-level emission were observed in the photoluminescence spectra.