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Flash-Lamp-Induced Lateral Solidification of Thin Si Films

Published online by Cambridge University Press:  23 June 2011

K. Omori
Affiliation:
Program in Materials Science and Engineering, Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, USA Technical Development Department, The Japan Steel Works, LTD., Yokohama, Japan
G.S. Ganot
Affiliation:
Program in Materials Science and Engineering, Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, USA
U.J. Chung
Affiliation:
Program in Materials Science and Engineering, Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, USA
A.M. Chitu
Affiliation:
Program in Materials Science and Engineering, Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, USA
A.B. Limanov
Affiliation:
Program in Materials Science and Engineering, Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, USA
James S. Im
Affiliation:
Program in Materials Science and Engineering, Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, USA Department of Materials Science and Engineering, College of Engineering, Korea Advanced Institute of Science and Technology, Korea
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Abstract

In this paper we show that a flash lamp can be employed to induce controlled lateral solidification of a-Si thin films. Specifically, a dual xenon-arc-lamp-based system was utilized to induce location-controlled complete melting by shaping the incident beam using a contact mask. The resulting laterally solidified microstructure consisted of exceptionally long grains (~10s to ~100s of μm) that were relatively free of intragrain-defects. With further development and optimization, the approach may lead to cost-effective/high-throughput processes and systems that can capture and enhance the advantages of laser-based/melt-mediated crystallization techniques.

Type
Research Article
Copyright
Copyright © Materials Research Society 2011

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References

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