Low Defect LWIR Substrates by Detached Growth Method
Department of Defense
Missile Defense Agency
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AbstractThe goal of this program is to extend our Phase I success in growing detached CdZnTe crystals to growth of high quality 51-mm (2-in) diameter crystals as substrates for LWIR sensors. This goal is to be pursued through a strong emphasis on purification of starting materials, experimental identification of the optimal growth conditions, establishment of a science-based reproducible technology , including purification, growth, and post-growth anneal, for production of high quality 19-mm CdZnTe substrates, and extension of this technology to 51-mm (2-in) crystal growth.
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