Evolution of low fluorine solution in decomposition and crystallization for YBa2Cu3Oy film growth
Evolution of low fluorine solution in decomposition and crystallization for YBa2Cu3Oy film growth
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YBa2Cu3Oy薄膜生长过程中低氟溶液分解和结晶过程的演变
DOI：
10.1016/j.jallcom.2013.03.027
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发表时间：
2013-08
影响因子：
6.2
通讯作者：
Li, C. S.
中科院分区：
文献类型：
--
作者：
Jin, L. H.;Lu, Y. F.;Feng, J. Q.;Zhang, S. N.;Yu, Z. M.;Wang, Y.;Li, C. S.
提出了一种基于低氟溶液的YBCO薄膜化学溶液沉积新工艺。该溶液中氟的总含量约为全TFA溶液中氟含量的50%，可大大减少腐蚀性含氟气体的释放，并可在短时间内抑制急性分解。用这种低氟溶液在5K/min的升温速率下获得了光滑、均匀的表面。在晶化过程中，中间相(BaYF、CuO)的组成随退火温度的不同而变化。纳米晶Y2O_3与CuO的反应伴随着YBCO相的形核，说明在晶化过程中第二相的形成可能较少。观察到了中间相(BaYF-Ba(O，F)2)的痕迹。结果表明，低氟溶液的生长机制仍然是“非原位BaF2”过程。采用快速热解工艺制备的YBCO薄膜具有较高的性能，Jc(77K，自场)=∼3.2 MA/cm~2。
A new chemical solution deposition process for YBCO films based on a low fluorine content solution has been developed. The total content of fluorine in this solution is about 50% of that in all TFA solution, the amount of corrosive fluorine-containing gas released can be greatly reduced and the acute decomposition in a short time can be suppressed. A smooth and homogeneous surface have been achieved at the heating rate of 5K/min by using this low fluorine solution. During the crystallization process, the composition of intermediated phases (BaYF, CuO) are changed with the annealing temperature. The reaction of nanocrystal Y2O3and CuO is accompanied with the nucleation of YBCO phase, which indicates that there may be less second phase formation in the crystallization process. The traces of intermediate phase (BaYF–Ba(O,F)2) are observed. It demonstrates that the growth mechanism of the low fluorine solution is still “ex situ BaF2” process. The YBCO films with a fast pyrolysis process has been demonstrated high performance with Jc(77K, self field)=∼3.2MA/cm2.
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影响因子：
4
作者：
Lijun Wu;V. Solovyov;H. Wiesmann;Y. Zhu;M. Suenaga
通讯作者：
Lijun Wu;V. Solovyov;H. Wiesmann;Y. Zhu;M. Suenaga
影响因子：
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作者：
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影响因子：
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作者：
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通讯作者：
L. Jin;Y. F. Lu;J. Feng;Z. Yu;Y. Wang;C. Li
影响因子：
1.7
作者：
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通讯作者：
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影响因子：
4.4
作者：
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通讯作者：
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