首页   按字顺浏览 期刊浏览 卷期浏览 Growth of low dislocation density CdTe films on hydroplaned CdTe substrates by molecula...
Growth of low dislocation density CdTe films on hydroplaned CdTe substrates by molecular beam epitaxy

 

作者: T. H. Myers,   J. F. Schetzina,   T. J. Magee,   R. D. Ormond,  

 

期刊: Journal of Vacuum Science&Technology A: Vacuum, Surfaces, and Films  (AIP Available online 1983)
卷期: Volume 1, issue 3  

页码: 1598-1603

 

ISSN:0734-2101

 

年代: 1983

 

DOI:10.1116/1.572275

 

出版商: American Vacuum Society

 

关键词: cadmium tellurides;surface treatments;etching;reflectivity;x−ray diffraction;transmission electron microscopy;morphology;molecular beam epitaxy

 

数据来源: AIP

 

摘要:

A systematic study of CdTe film growth by molecular beam epitaxy (MBE) on hydroplaned (111)A and (111)B CdTe substrates is discussed. Substrate preparation prior to growth involved chemical etching techniques, rather than sputtering in UHV, in order to maintain the integrity of the hydroplaned surface. A range of substrate temperature during growth was investigated. X‐ray diffraction, UV reflection, and transmission electron diffraction measurements were employed to evaluate the structural quality of the CdTe films. Bright and dark field transmission electron microscopy was used to determine film dislocation densities. An entirely different film growth morphology was observed on the (111)A versus (111)B substrate surfaces for the range of temperatures and growth rate employed. Growth of high quality, low dislocation density, twin‐free CdTe films was achieved on hydroplaned (111)A CdTe substrates at 250 °C.

 

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