Controlled suppression of the photoluminescence superlinear dependence on excitation density in quantum dots

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作者
Sergio Bietti
Stefano Sanguinetti
机构
[1] Universitá di Milano-Bicocca,LNESS and Dipartimento di Scienza dei Materiali
关键词
Quantum dots; Droplet epitaxy; Photoluminescence; Annealing;
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学科分类号
摘要
We have shown that it is possible to tune, up to complete suppression, the photoluminescence superlinear dependence on the excitation density in quantum dot samples at high temperatures by annealing treatments. The effect has been attributed to the reduction of the defectivity of the material induced by annealing.
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