OPTICAL STUDY OF INTERMIXING IN CDTE/CDMGTE QUANTUM-WELLS

被引：11

作者：

TONNIES, D

BACHER, G

FORCHEL, A

WAAG, A

LITZ, T

LANDWEHR, G

机构：

[1] Technische Physik, Universität Würzburg, Am Hubland, Würzburg

[2] Experimentelle Physik III, Universität Würzburg, Am Hubland, Würzburg

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1994年 / 33卷 / 2B期

关键词：

CDTE; CDMNTE; INTERDIFFUSION; ANNEALING;

D O I：

10.1143/JJAP.33.L247

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

CdTe/CdMgTe quantum wells were processed by rapid thermal annealing (RTA) at temperatures between 390-degrees-C and 550-degrees-C. Due to the interdiffusion of Cd and Mg ions the photoluminescence of the quantum wells exhibits strong blue shifts up to 360 meV at the highest annealing temperature. This energy shift is close to the total discontinuity of the quantum well structures, indicating an almost perfect interdiffusion of barrier and well material. By using a simple model for the quantum well potential changes due to interdiffusion we derive the interdiffusion length as a function of the annealing temperature. The interdiffusion is characterized by an activation energy of 2.8 eV.

引用

页码：L247 / L249

页数：3

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