Preparation and characterization of high-quality stoichiometric LiNbO₃ thick films prepared by the sol–gel method

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• 作者：Takahashi ; Makoto ; Yamauchi ; Keiko ; Yagi ; Touru ; Nishiwaki ; Akira ; Wakita ; Koichi ; Ohnishi ; Naoyuki ; et. al.
• 关键词：Sol&ndash ; gel method ; LiNbO₃ ; Stoichiometric lithium niobate (SLN)
• 刊名：Thin Solid Films
• 出版年：2004
• 出版时间：June 30, 2004
• 年：2004
• 卷：458
• 期：1-2
• 页码：108-113
• 全文大小：469 K

文摘

Stoichiometric lithium niobate (SLN) thick films were deposited on z-cut LiNbO₃ using the sol–gel method from a precursor solution containing various polyvinyl alcohol (PVA) concentrations and their characteristics were investigated. The film thickness increases linearly and the roughness decreases with the increase in PVA concentration. The refractive indexes of the films prepared with PVA were n₀