Empowering perovskite PbTiO3 nanoparticles with enhanced up-conversion luminescence and thermal sensitivity by introducing Er3+ dopant

Jing Zhu; Shiqing Xu; Lei Lei; Feifei Huang; Zhen Xiao

doi:10.3788/COL202119.021601

Journals >Chinese Optics Letters >Volume 19 >Issue 2 >Page 021601 > Article

Chinese Optics Letters
Vol. 19, Issue 2, 021601 (2021)

Empowering perovskite PbTiO₃ nanoparticles with enhanced up-conversion luminescence and thermal sensitivity by introducing Er³⁺ dopant | Editors' Pick

Jing Zhu, Shiqing Xu, Lei Lei, Feifei Huang, and Zhen Xiao^*

Author Affiliations

Institute of Optoelectronic Materials and Devices, China Jiliang University, Hangzhou 310018, China

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DOI: 10.3788/COL202119.021601 Cite this Article Set citation alerts

Jing Zhu, Shiqing Xu, Lei Lei, Feifei Huang, Zhen Xiao. Empowering perovskite PbTiO₃ nanoparticles with enhanced up-conversion luminescence and thermal sensitivity by introducing Er³⁺ dopant[J]. Chinese Optics Letters, 2021, 19(2): 021601 Copy Citation Text

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$(a) XRD patterns of Er-PTO nanoparticles. (b) Magnification of (110) diffraction peaks.$

Fig. 1. (a) XRD patterns of Er-PTO nanoparticles. (b) Magnification of (110) diffraction peaks.

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SEM images of Er-PTO nanoparticles with different Er3+ doping concentrations. (a) PTO, (b) 1% Er-PTO, (c) 2% Er-PTO, (d) 3% Er-PTO, (e) 4% Er-PTO, respectively.

Fig. 2. SEM images of Er-PTO nanoparticles with different

{Er}^{3 +}

doping concentrations. (a) PTO, (b) 1% Er-PTO, (c) 2% Er-PTO, (d) 3% Er-PTO, (e) 4% Er-PTO, respectively.

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Fig. 3. (a) TEM, (b) HRTEM, and (c) STEM images and the corresponding EDS elemental mapping results of 1% Er-PTO sample.

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Fig. 4. (a) Room temperature UCL spectra of Er-PTO (0, 1%, 2%, 3%, and 4%). The inset is the digital photographs of the 1% Er-PTO and 4% Er-PTO. (b) Plots of the integrated intensities versus the concentration of

{Er}^{3 +}

ions. (c) Double logarithmic plots of pump power dependent emission intensities of 1% Er-PTO. (d) Energy levels of

{Er}^{3 +}

ion and UCL mechanism of Er-PTO crystals.

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Fig. 5. (a) Fluorescence emission spectra of 1% Er-PTO sample excited by 980 nm excitation with temperature from 333 K to 493 K; (b) temperature-sensing properties for 1% Er-PTO sample. The inset depicts the relationship between sensitivity and absolute temperature.

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