首页   按字顺浏览 期刊浏览 卷期浏览 Crosshatched surface morphology in strained III‐V semiconductor films
Crosshatched surface morphology in strained III‐V semiconductor films

 

作者: Kevin H. Chang,   Ronald Gilbala,   David J. Srolovitz,   Pallab K. Bhattacharya,   John F. Mansfield,  

 

期刊: Journal of Applied Physics  (AIP Available online 1990)
卷期: Volume 67, issue 9  

页码: 4093-4098

 

ISSN:0021-8979

 

年代: 1990

 

DOI:10.1063/1.344968

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The correlation between the surface crosshatched morphology and the interfacial misfit dislocations in strained III‐V semiconductor heteroepitaxy has been studied. The surface pattern is clearly seen on samples grown at high temperature (520 °C) and those with small lattice‐mismatched (f<2%) systems. A poorly defined crosshatched morphology was found on layers grown at relatively low temperature (400 °C). As the lattice mismatch of the strained layer becomes larger than 2%, a roughly textured surface morphology is commonly observed in place of actual cross‐hatching. Few threading dislocations are observed in the strained layer when the crosshatched pattern develops. It is also noted that the surface crosshatched pattern develops after the majority of the interfacial misfit dislocations are generated. The result suggests that the surface crosshatch pattern is directly related to the generation of interfacial misfit dislocations through glide processes.

 

点击下载:  PDF (610KB)



返 回