A study of the parameters influencing the microstructure of thick La2Zr2O7 films

作者：Cloet V^*; Lommens P; Huehne R; De Buysser K; Hoste S; Van Driessche I

来源：Journal of Crystal Growth, 2011, 325(1): 68-75.

DOI：10.1016/j.jcrysgro.2011.04.029

• Crystal morphology
• Chemical solution deposition
• Pyrochlores
• Superconducting materials

Thick La2Zr2O7 (120) layers were produced via a water-based sol-gel route. All layers were analyzed in-depth by XRD, pole figures and transmission electron microscopy. Well-textured thick layers (120 nm) could be obtained by adjusting the heat treatment and introducing a LZO seed layer (20 nm). The overall quality of the LZO layers greatly improved by the introduction of seed layers. Nevertheless, nanovoids were found in the thick LZO layers. A tentative explanation for parameters influencing the origin and development of the nanovoids is presented, based on TEM observations.

• 出版日期2011-6-15