首页|Multicolor upconversion reversible modulations in YNbO4∶Er3+/Tm3+/Yb3+photochromic materials

Multicolor upconversion reversible modulations in YNbO4∶Er3+/Tm3+/Yb3+photochromic materials

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Photochromic materials with multicolor upconversion reversible modulations are attractive in optical switching devices.Herein,the fabricated YNbO4:Er3+/Tm3+/Yb3+materials exhibit excellent photo-chromism and multicolor upconversion properties from green,red to near infrared(NIR)emissions with increasing Yb concentrations.Reversible multiband upconversion modulations are achieved by alter-nating light(365 and 405 nm)or thermal stimuli.After 365 nm irradiation,the luminescence color changes from yellow to red,the luminescent photoswitching contrast reaches up to 86.21％(green),82.12％(red)and 77.38％(NIR)in the Y0.83Er0.01Tm0.01NbO4∶0.15 Yb sample.Besides,the upconversion emission intensity before and after photochromic reaction shows remarkable change in a wide tem-perature range of 298-718 K.These results indicate that the Er3+/Tm3+/Yb3+tri-doped YNbO4 materials can be a good candidate in optical switching and data storage applications.

Photochromic materialsLuminescence modulationMulticolor emissionPhotoswitching contrastRare earths

Zhen Zhang、Peng Li、Ziyi Xu、Zhihao Zhang、Qiwei Zhang、Haiqin Sun、Xihong Hao

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Inner Mongolia Key Laboratory of Ferroelectric-related New Energy Materials and Devices,School of Materials and Metallurgy,Inner Mongolia University of Science and Technology,Baotou,014010,China

College of Physics and Technology,Guangxi Normal University,Guilin,541004,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Inner Mongolia

52062042518021642020MS05044

2024

10.1016/j.jre.2022.11.006

稀土学报(英文版)
中国稀土学会

稀土学报(英文版)

CSTPCDEI
影响因子：1.3
ISSN：1002-0721
年,卷(期)：2024.42(2)
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