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1 November 1990 Preparation of Li2B4O7 thin films by sol-gel method and their characterization
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The sol-gel method using lithium and boron-n-tributoxide as starting materials has been applied to prepare Li2B4O7 coating films on silica glass, silicon and sapphire single crystal substrates. The effects of the amounts of water and acid added to coating solutions, and the kinds of substrate on the crystallization of Li2B4O7 coating films were fully investigated. It was found that a sufficient amount of water is required for obtaining well-crystallized Li2B4O7 films of single phase, the addition of acids such as hydrochloric and acetic acids to the coating solution suppresses crystallization up to 600°C and gives highly oriented Li2B4O7 single phase films on further heating at 800°C.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Toshinobu Yoko, Hiroya Yamashita, and Sumio Sakka "Preparation of Li2B4O7 thin films by sol-gel method and their characterization", Proc. SPIE 1328, Sol-Gel Optics, (1 November 1990);

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