@article{Zhou2022, 
author = {Yang Zhou and Rui Xiong and Peng Wang and Xiao Wu and Baisheng Sa and Cong Lin and Min Gao and Tengfei Lin and Chunlin Zhao},
title = {Strain and illumination triggered regulations of up-conversion luminescence in Er-doped Bi0.5Na0.5TiO3-BaTiO3/Mica flexible multifunctional thin films},
year = {2022},
journal = {Journal of Materiomics},
volume = {8},
number = {3},
pages = {586-595},
keywords = {Luminescent-ferroelectrics, Flexibility, Mechanical strain, Up-conversion photoluminescence, Photochromic},
url = {https://www.sciopen.com/article/10.1016/j.jmat.2021.12.002},
doi = {10.1016/j.jmat.2021.12.002},
abstract = {External stimuli induced effective regulations of luminescent material are of significant interest in the development of smart optical devices. Here, by simply doping with Er3+ in the 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 (BNTBT) ferroelectric host, using the bendable mica substrate, and exerting mechanical strain (bending) or light illumination (via photochromic reaction), the all-inorganic, highly-transparent and flexible Er-doped BNTBT/Mica luminescent-ferroelectric thin films were designed and fabricated, displaying strain-induced dramatically elevation of up-conversion photoluminescence (PL) intensity, suppression of PL concentration quenching, outstanding endurance and durability, convenient illumination-mediated PL quenching. And the strain-induced structural changes and local lattice distortions of the thin films were further explored through theoretical calculations and Raman measurement. Our results can supply the guidance of designing other luminescent-ferroelectric materials with controlled PL properties via easy mechanical/photo stimuli for expanding the application of multifunctional wearable memory devices.}
}