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The Role of Gallium Sulfide in Srs:Ce Grain Growth

Published online by Cambridge University Press:  02 July 2020

N. D. Evans
Affiliation:
Oak Ridge Institute for Science and Education, P.O. Box 117, Oak Ridge, TN37831
A. Naman
Affiliation:
Dept. of Materials Science and Engineering, University of Florida, P.O. Box 116400, Gainesville, FL32611
P. M. Rice
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN37831
K. S. Jones
Affiliation:
Dept. of Materials Science and Engineering, University of Florida, P.O. Box 116400, Gainesville, FL32611
P. H. Holloway
Affiliation:
Dept. of Materials Science and Engineering, University of Florida, P.O. Box 116400, Gainesville, FL32611
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Extract

Whereas efficient red (ZnS:Mn) and green (ZnS:Tb) phosphors are available for full-color flat-panel display technology, efficient blue phosphors are still under development. SrS:Ce is being investigated as a suitable material. As part of a larger study, annealed SrS:Ce films produced from sputter targets incorporating Ga2S3 were found to be five times brighter than films produced from targets containing no Ga2S3. Consequently, the significance of added gallium sulfide to the morphology of SrS:Ce films during annealing is being investigated.

Following deposition, plan view specimens of films were prepared for transmission electron microscopy by mechanical grinding, dimpling, and Ar+ milling. Films were examined in a Philips CM 12, and a JEOL 200CX. Additionally, EDS line scans were obtained in the scanning-transmission mode of a Philips CM200FEG, integrated with an EMiSPEC Vision acquisition system. The EDS line scans were defined as a series of 40 points along a line, spaced approximately 3.6 nm apart.

Type
Analytical Electron Microscopy
Copyright
Copyright © Microscopy Society of America 1997

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References

1. All films were provided by Planar America. Partial funding for this research was provided by ARPA Grant B-10-F56-S2. Research at the SHaRE User Facility sponsored by the Division of Materials Sciences, U.S. Department of Energy, under contract DE-AC05-96OR22464 with Lockheed Martin Energy Research Corp., and through the SHaRE Program under contract DE-AC05-76OR00033 with Oak Ridge Associated Universities.Google Scholar