Dislocation cell structures in CdZnTe substrates and its behavior of threading into HgCdTe LPE epilayers

Xiaopan Cui; Weizheng Fang; Yanfeng Wei; Chuanjie Zhang; Hualian Xu; Shiwen Sun; Jianrong Yang

doi:10.1117/12.899525

8 September 2011 Dislocation cell structures in CdZnTe substrates and its behavior of threading into HgCdTe LPE epilayers

Xiaopan Cui, Weizheng Fang, Yanfeng Wei, Chuanjie Zhang, Hualian Xu, Shiwen Sun, Jianrong Yang

Author Affiliations +

Proceedings Volume 8193, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications; 819311 (2011) https://doi.org/10.1117/12.899525
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

Dislocation cell structures in CdZnTe substrates and its behavior of threading into HgCdTe LPE epilayers were studied. A kind of dislocation cell structure of which dislocations linearly pile up to three <1 1 0> orientations on the (1 1 1) B face of CdZnTe crystal was found. The formation of this cell structure can be demonstrated by the enrichment of the dislocations through slip during the growth or cooling process. By comparing the dislocation densities and distributions of HgCdTe LPE epilayers with it of CdZnTe substrates at the constant region using an optical microscopy system, the behavior of cell structures of CdZnTe substrates threading into HgCdTe LPE epilayers were also discussed. The results show that the stored dislocation densities at the dislocation walls can significantly affect the behavior of dislocation cell structures threading into HgCdTe LPE epilayers. Dislocation cell structures of which dislocation walls have higher stored dislocation densities can appear in constant region of HgCdTe epilayers. But the dislocations of HgCdTe epilayers growth on CdZnTe substrate with lower stored dislocation densities at the dislocation walls are almost uniformly distributed.

Citation Download Citation

Xiaopan Cui, Weizheng Fang, Yanfeng Wei, Chuanjie Zhang, Hualian Xu, Shiwen Sun, and Jianrong Yang "Dislocation cell structures in CdZnTe substrates and its behavior of threading into HgCdTe LPE epilayers", Proc. SPIE 8193, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, 819311 (8 September 2011); https://doi.org/10.1117/12.899525

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Mercury cadmium telluride

Liquid phase epitaxy

Crystals

Etching

Optical microscopy

Photography

Surface finishing

Show All Keywords

Keywords/Phrases

Search In:

Publication Years