CALCULATIONS OF INTERDIFFUSION AND THE QUANTUM-CONFINED STARK-EFFECT IN GAAS-GAALAS QUANTUM-WELLS

被引：3
作者：
SEIDEL, W
VOISIN, P
机构：
[1] Lab. de Phys. de la Matiere Condensee, Ecole Normale Superieure, Paris
来源：
SEMICONDUCTOR SCIENCE AND TECHNOLOGY | 1993年 / 8卷 / 10期
关键词：
D O I：
10.1088/0268-1242/8/10/017
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The partial intermixing of well and barrier materials offers unique opportunities to shift locally the bandgap of quantum well (QW) structures. In combination with the quantum confined Stark effect it can be used for many applications in integrated optoelectronics. Here we investigate theoretically the optical and electro-optical properties of partially intermixed GaAs-GaAlAs QW structures. We calculate the dependences of energy shifts and absorption spectra as a function of the well width, the interdiffusion length and the applied electric field. We show in particular that large blue shifting by interdiffusion and efficient electro-optical modulation can be achieved only for a narrow range of ow widths.
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页码：1885 / 1888
页数：4
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