螯合法制备Na0.5K0.5NbO3薄膜

IF 18.6 1区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of Advanced Ceramics Pub Date : 2013-06-12 DOI:10.1155/2013/850751

A. F. Solarte, N. Pellegri, O. Sanctis, M. Stachiotti

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引用次数: 2

摘要

采用螯合法制备了Na0.5K0.5NbO3 (NKN)薄膜，具有溶液合成简单、快速的优点。该路线是基于使用乙托因作为螯合剂。通过考察碱性挥发对膜性能的影响，对工艺进行了优化。虽然我们没有观察到由于热处理过程中钾挥发损失而导致的化学计量问题的证据，但在钠过量不足的情况下合成的薄膜呈现出富钾的二次相，这对铁电性能有显著影响。我们发现，随着Na的增加，杂相的数量减少

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Simple and rapid fabrication of Na0.5K0.5NbO3 thin films by a chelate route

Na0.5K0.5NbO3 (NKN) thin films were prepared by a chelate route which offers the advantage of a simple and rapid solution synthesis. The route is based on the use of acetoin as a chelating agent. The process was optimized by investigating the effects of alkaline volatilization on film properties. While we observed no evidence of stoichiometry problems due to potassium volatilization loss during the heat treatments, thin films synthesized with insufficient sodium excess presented a potassium-rich secondary phase, which has a significant influence on the ferroelectric properties. We show that the amount of spurious phase decreases with increasing Na

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来源期刊

Journal of Advanced Ceramics MATERIALS SCIENCE, CERAMICS-

CiteScore

21.00

自引率

10.70%

发文量

290

审稿时长

14 days

期刊介绍： Journal of Advanced Ceramics is a single-blind peer-reviewed, open access international journal published on behalf of the State Key Laboratory of New Ceramics and Fine Processing (Tsinghua University, China) and the Advanced Ceramics Division of the Chinese Ceramic Society. Journal of Advanced Ceramics provides a forum for publishing original research papers, rapid communications, and commissioned reviews relating to advanced ceramic materials in the forms of particulates, dense or porous bodies, thin/thick films or coatings and laminated, graded and composite structures.