Er³⁺-doped Ba_0.85Ca_0.15Ti_0.9Zr_0.1O₃ (xEr-BCTZ, x = 0, 0.005, 0.01, 0.015) multifunctional thick films were prepared by the tape-casting method, using sol-gel-derived nano-sized powders as the matrix material. The surface morphologies, photoluminescence, and electrical properties were investigated. Dense microstructures with pure perovskite structure were obtained in the thick films. By doping an appropriate amount of Er³⁻, the samples exhibit superior up-conversion photoluminescence performance and simultaneously enhanced electrical performances. In addition, relatively higher texture fractions (with the largest value of 83.5%) were realized through introducing plate-like BaTiO₃ templates to make the thick film grow by the [001]_c orientation. And the ferro-/piezoelectric properties of the thick films were further improved, showing potential in the applications of micro-optoelectronic devices.

掺杂Er ^3+的Ba _0.85 Ca _0.15 Ti _0.9 Zr _0.1 O ₃（x Er-BCTZ，x = 0，0.005，0.01，0.015 ）通过流延法使用溶胶-凝胶法制备纳米厚膜尺寸的粉末作为基质材料。研究了表面形态，光致发光和电性能。在厚膜中获得了具有纯钙钛矿结构的致密微观结构。通过掺杂适量的Er ^3-，样品表现出优异的上转换光致发光性能，同时具有增强的电性能。另外，通过引入板状BaTiO ₃模板以使厚膜沿[001] _c方向生长，可以实现相对较高的织构分数（最大值为83.5％）。而且厚膜的铁电/压电性能得到进一步改善，在微光电器件的应用中显示出潜力。