The Effects of Interface Strain and Dipole Layers on the Electronic Properties of Lattice Matched Rn-V Semiconductor Superlattices

1991 ◽  
Vol 221 ◽  
Author(s):  
J. S. Nelson ◽  
S. R. Kurtz ◽  
L. R. Dawson ◽  
J. A. Lott ◽  
C. Y. Fong
Author(s):  
Y. Hsu ◽  
T. S. Kuan ◽  
W. I. Wang

Semiconductor superlattices or epitaxial overlayers have so far been grown mostly on (100)-oriented substrates. It has long been suspected that growth on surfaces such as (m11) could produce equally good or better epitaxial layers. In this work, we have systematically tested the growth of multi- or single-layered structures, including the GaAs/AlAs, AlAs/Ge, and GaAs/Si systems, on surfaces of different orientations. The crystallinity and defect mechanisms in the layers grown on (100), (311), and (511) surfaces at different temperatures were compared. In most cases we found that (311) surfaces can produce epitaxial layers as good as on (100) surfaces.Perfect lattice-matched GaAs/AIAs superlattices were grown on (311)A-, (311)B-, and (100)-oriented GaAs substrates. Superlattices with good layer morphology were achieved on all three surfaces at 600°C. Fig. 1(a) shows an image of a typical GaAs/AIAs superlattice grown on a (311)B surface. This superlattice exhibits sharp interface abruptness as indicated by the high-order satellites observed in the diffraction pattern in Fig. 1(b).


1982 ◽  
Vol 18 ◽  
Author(s):  
J. Pollmann ◽  
A. Mazur

A short review of characteristic electronic properties of heterojunction interfaces is given. Band edge discontinuities and interface band structures for lattice-matched junctions are discussed in detail. The examples presented include non-polar and polar junctions as well as overlayer systems. The results of involved calculations are interpreted in terms of simple physically appealing pictures by directly relating the changes in bonds across an interface to the resulting bands in the interface band structure. The meaning of the results for the transport properties of semiconductor heterojunctions is briefly assessed.


2016 ◽  
Vol 119 (22) ◽  
pp. 225701 ◽  
Author(s):  
P. T. Webster ◽  
A. J. Shalindar ◽  
N. A. Riordan ◽  
C. Gogineni ◽  
H. Liang ◽  
...  

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