电化学方法制备Ba_(1-x-y)Sr_xCa_yWO_4晶态薄膜的相关机制分析

Mechanism Analysis of Electrochemical Preparation of Crystalline Ba_(1-x-y)Sr_xCa_yWO_4 Thin Films

基于本组采用恒电流技术、直接在金属钨片上以电化学方法制备具有白钨矿结构的钡、锶、钙(包括其复合体系)钨酸盐(Ba1-x-ySrxCayWO4)薄膜的实验研究,分析了利用电化学方法制备功能薄膜中的成膜机制,讨论了晶态薄膜电化学制备过程中的电流密度、电解液酸度、沉积温度和溶液浓度等工艺条件对薄膜形成的影响.该研究结果对利用电化学方法制备相关薄膜也具有重要参考价值.

Based on the experimental results of crystallized Ba_ 1-x-y Sr_xCa_yWO_4 thin films with scheelite-structure on tungsten metal substrate with high purity grown by using galvanostatic electrochemical technique at room temperature, the electrochemical growth mechanism of the functional Ba_ 1-x-y Sr_xCa_yWO_4 thin films is analyzed, the influences of the technical parameters, such as the electrical current density, pH value of the solution, the duration of electrochemical reaction and the reacting temperature,...