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arXiv · 1501.00566

Er3+-doped Na0.5Bi0.5TiO3 Ferroelectric Thin Films with Enhanced Electrical Properties and Strong Green Up-conversion Luminescence

Hong Zhou·Shanshan Wang·Guangheng Wu·Xiaoli Zhu·Xiaoxia Wang·Anlian Pan
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Abstract

Ferroelectric materials with up-conversion luminescence (UCL) properties have potential opto-electric applications for display and sensing etc. Here, we demonstrate strong green UCL and enhanced electrical properties in Er3+-doped Na0.5Bi0.5TiO3 thin films. The thin films are prepared via using a modified chemical solution deposition method. These thin films are phase-pure and crystallized in perovskite structure. The largest remnant polarization (Pr) and highest dielectric constant are obtained from Na0.5Bi0.49Er0.01TiO3 thin films, and their values are 0.22 C/m2 and 1166, respectively. Meanwhile, strong green UCL at 525 nm and 548 nm are observed in Er3+-doped thin films. They are attributed to 2H11/2 to 4I15/2 and 4S3/2 to 4I15/2 transitions of Er3+ ions. These thin films have potentials in optoelectrical device applications.

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Hong Zhou, Shanshan Wang, Guangheng Wu, Xiaoli Zhu, Xiaoxia Wang, Anlian Pan. 2015-02-04. Er3+-doped Na0.5Bi0.5TiO3 Ferroelectric Thin Films with Enhanced Electrical Properties and Strong Green Up-conversion Luminescence. https://doi.org/10.1007/s00339-015-9043-1

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