In the past few decades, transparent electro-optical ceramics PLZT (9/65/35) (Pb_0.91La_0.09(Zr_0.65Ti_0.35)_0.9775O₃) with special properties, particularly high transmittance in visible light, have gained much attention. However, restricted by the large ferroelectric hysteresis, the prospect is not optimistic. In this article, Pb_0.91La_0.09(Zr_0.65Ti_0.35)_0.9775-5x/4Nb_xO₃ (abbreviated as PLZTN) transparent ceramics with varying Nb content (x = 0.000, 0.005, 0.010, 0.015) were fabricated by hot press sintering process under oxygen atmosphere. Electrical and optical properties were systematically studied. The temperature dependence of the dielectric constant showed a diffuse phase transition indicated typical relaxor behaviour. Moreover, the temperature at maximum dielectric constant (T_m) are near about 63 °C, almost unchanged. Comparing with undoped samples, the PLZTN with x = 0.010 Nb doping shows a dramatic reduction of 162.5% in ferroelectric hysteresis, with only a slight decrease in the maximum polarization from 30.04 µC/cm² to 28.53 µC/cm². The quadratic electro optic coefficient experienced 54.8% reduction but still satisfy the application requirements. In terms of transmittance, the PLZTN samples kept a high value of transmittance (about 64%) along with increasing Nb content. Hence, the conclusion can be drawn that Nb doping in PLZT (9/65/35) is a novel strategy to reduce the ferroelectric hysteresis.

在过去的几十年中，具有特殊性能，特别是在可见光下具有高透射率的透明电光陶瓷PLZT（9/65/35）（Pb _0.91 La _0.09（Zr _0.65 Ti _0.35）_0.9775 O ₃）受到了广泛的关注。但是，受大铁电磁滞的限制，前景并不乐观。在这篇文章中，铅_0.91的La _0.09（锆_0.65的Ti _0.35）_{0.9775-5 X / 4}的Nb _X ø ₃（缩写为PLZTN）透明陶瓷具有不同Nb含量（X 在氧气气氛下通过热压烧结法制得=（0.000、0.005、0.010、0.015）。对电学和光学性质进行了系统的研究。介电常数的温度依赖性显示出扩散相变，表明典型的弛豫行为。而且，最大介电常数（T _m）下的温度接近63℃，几乎没有变化。与未掺杂样品相比，x  = 0.010 Nb掺杂的PLZTN的铁电磁滞显着降低了162.5％，最大极化仅略有降低，从30.04 µC / cm ²降至28.53 µC / cm ²。二次电光系数降低了54.8％，但仍满足应用要求。在透射率方面，随着Nb含量的增加，PLZTN样品保持了较高的透射率值（约64％）。因此，可以得出结论，PLZT（9/65/35）中的Nb掺杂是减少铁电磁滞的一种新颖策略。