YBCO+PVDF薄膜的化学溶液沉积技术研究

Preparation of YBCO+PVDF films by Chemical Solution Deposition

摘要:

本文采用化学溶液沉积成功制备出了YBCO+PVDF薄膜。研究发现通过添加PVDF能够改变YBCO胶体的热解行为,适用于快速热解。PVDF在分解中可以向YBCO中间相中引入氟,减少碳酸钡,促进外延生长。结果表明通过添加PVDF可以改善YBCO薄膜的织构取向,有利于更进一步提高样品的超导性能。

Abstract:

YBCO+PVDF films had been successfully fabricated by chemical solution deposition method. The decomposition behavior of YBCO gel was influenced by the addition of PVDF. YBCO+PVDF gel was suitable for fast pyrolysis process. During the pyrolysis process, the fluorine could enter into the intermediate phase and inhibit the formation of BaCO₃. The results showed that the addition of PVDF would improve the epitaxial growth of YBCO film. It was beneficial to achieve high performance of YBCO film.