Annealing effect on the shape of CdTe/ZnTe quantum wells
- 1 June 1992
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 60 (22) , 2797-2799
- https://doi.org/10.1063/1.106831
Abstract
We report on the effect of thermal annealing on thin (001) CdTe/ZnTe single quantum wells. We found that the interdiffusion strongly modifies the optical spectra: (i) besides the expected blue shift, a strong reduction of the linewidth is observed in a first stage of annealing; we attribute this effect to a complete elimination of the larger islands present at the interface, (ii) in a second stage, ‘‘usual’’ interdiffusion occurs, with a slow rate in agreement with the diffusion coefficient extrapolated from reported self‐diffusion data at higher temperatures.Keywords
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