Bulk growth of II-VI crystals in the microgravity environment of USML-1

Donald C. Gillies; Sandor L. Lehoczky; Frank R. Szofran; David J. Larson Jr.; Ching-Hua Su; Yi-Gao Sha; Helga A. Alexander

doi:10.1117/12.164940

7 December 1993 Bulk growth of II-VI crystals in the microgravity environment of USML-1

Donald C. Gillies, Sandor L. Lehoczky, Frank R. Szofran, David J. Larson Jr., Ching-Hua Su, Yi-Gao Sha, Helga A. Alexander

Author Affiliations +

Proceedings Volume 2021, Growth and Characterization of Materials for Infrared Detectors; (1993) https://doi.org/10.1117/12.164940
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

The first United States Microgravity Laboratory Mission (USML-1) flew in June 1992 on the Space Shuttle Columbia. An important part of this SpaceLab mission was the debut of the Crystal Growth Furnace. Of the seven samples growth in the furnace, three were bulk grown II-VI compounds, two of a cadmium zinc telluride alloy, and one of a mercury zinc telluride alloy. Ground based results are presented, together with the results of computer simulated growths of these experimental conditions. Preliminary characterization results for the three USML-1 growth runs are also presented and the flight sample characteristics are compared to the equivalent ground truth samples. Of particular interest are the effect of the containment vessel on surface features, and especially on the nucleation, and the effect of the gravity vector on radial and axial compositional variations and stress and defect levels.

Citation Download Citation

Donald C. Gillies, Sandor L. Lehoczky, Frank R. Szofran, David J. Larson Jr., Ching-Hua Su, Yi-Gao Sha, and Helga A. Alexander "Bulk growth of II-VI crystals in the microgravity environment of USML-1", Proc. SPIE 2021, Growth and Characterization of Materials for Infrared Detectors, (7 December 1993); https://doi.org/10.1117/12.164940

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