Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1663897 | Thin Solid Films | 2016 | 5 Pages |
Abstract
We demonstrate enhanced band-gap tunability in Cd1 â xZnxTe thin films (x = 0, 0.03, 0.06, 0.1, 0.2, or 1) fabricated directly from Cd1 â xZnxTe targets using pulsed laser deposition (PLD). All the Cd1 â xZnxTe films have uniform thicknesses of ~ 200 nm, crystalline sizes of ~ 20 nm, and are highly oriented in the [111] direction. The annealed Cd1 â xZnxTe targets allow better compositional control of the Cd1 â xZnxTe films than non-annealed targets. This new process using a single target with high compositional uniformity provides better tunability of the Cd1 â xZnxTe film lattice parameter (6.49 to 6.09 Ã
) and band gap (1.48 to 2.22Â eV) by increasing the Zn concentration (x) from 0 to 1.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Seonghyeon Yoo, Jesus Avendano, Luis Delmar, Seungjin Nam, Manuel Quevedo-Lopez, Hyunjoo Choi,