Broadband photochromic effect and photoluminescence modulation in rare-earth-doped (Pb,La)(Zr,Ti)O<sub>3</sub> ceramics

Long Xu; Ruiqi Zhu; Caixia Xu

doi:doi:10.3788/COL202018.091403

Chinese Optics Letters, 2020, 18 (9): 091403, Published Online: Aug. 3, 2020

Broadband photochromic effect and photoluminescence modulation in rare-earth-doped (Pb,La)(Zr,Ti)O₃ ceramics Download： 708次

Long Xu ¹Ruiqi Zhu ¹Caixia Xu ^2,*

Author Affiliations

¹ School of Physical Science and Technology, Southwest University, Chongqing 400715, China

² School of Primary Education, Chongqing Normal University, Chongqing 400700, China

Figures & Tables

Fig. 1. (a) X-ray diffraction spectrum of undoped PLZT, 1 mol% ${Er}^{3 +}$ -doped, and 1 mol% ${Nd}^{3 +}$ -doped PLZT ceramics; (b) the surface appearance photograph of undoped PLZT ceramics taken by an AFM; (c) the room temperature ground state absorption spectra; and (d) the transmittance spectra of undoped PLZT, 1 mol%–3 mol% ${Er}^{3 +}$ -doped, and 1 mol% ${Nd}^{3 +}$ -doped PLZT samples (the inset is the photograph of the undoped, ${Er}^{3 +}$ -doped, and ${Nd}^{3 +}$ -doped PLZT samples).

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Fig. 2. (a) Schematic illustration of the experimental setup of the photochromic effect; (b) the dynamic change of the transmittance of light in the darkening, self-bleaching, and infrared bleaching processes; (c) the trapping and detrapping process of electrons in TDT; (d) extinction coefficient and (e) refractive index change after UV light exposure; (f) the two-dimensional pseudo color distribution of the transmittance of light at different wavelengths in undoped PLZT ceramics (the inserted green line is the absorption spectrum of undoped PLZT ceramics).

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Fig. 3. Two-dimensional pseudo color distribution of the transmittance of light at different wavelengths in (a) the 1 mol% ${Nd}^{3 +}$ ion-doped PLZT ceramics and (b)–(d) the 1 mol%–3 mol% ${Er}^{3 +}$ ion-doped PLZT ceramics.

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Fig. 4. (a) Upconversion spectra of 1 mol% ${Er}^{3 +}$ -doped PLZT ceramics excited by the laser at 980 nm after being irradiated by UV light at 365 nm with a power of 0 mW, 0.1 mW, and 0.12 mW for 1 min each (the inset is the schematic setup to measure the photoluminescence spectrum); (b) photoluminescence at 1550 nm of 1 mol% ${Er}^{3 +}$ -doped PLZT excited by the laser at 980 nm after being irradiated by UV light at 365 nm with a power of 0 mW, 0.1 mW, and 0.12 mW for 1 min each.

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Long Xu, Ruiqi Zhu, Caixia Xu. Broadband photochromic effect and photoluminescence modulation in rare-earth-doped (Pb,La)(Zr,Ti)O₃ ceramics[J]. Chinese Optics Letters, 2020, 18(9): 091403.

Broadband photochromic effect and photoluminescence modulation in rare-earth-doped (Pb,La)(Zr,Ti)O₃ ceramics Download： 708次

Fig. 3. Two-dimensional pseudo color distribution of the transmittance of light at different wavelengths in (a) the 1 mol% ${Nd}^{3 +}$ ion-doped PLZT ceramics and (b)–(d) the 1 mol%–3 mol% ${Er}^{3 +}$ ion-doped PLZT ceramics.

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Broadband photochromic effect and photoluminescence modulation in rare-earth-doped (Pb,La)(Zr,Ti)O3 ceramics Download： 708次

Fig. 3. Two-dimensional pseudo color distribution of the transmittance of light at different wavelengths in (a) the 1 mol% Nd3+ ion-doped PLZT ceramics and (b)–(d) the 1 mol%–3 mol% Er3+ ion-doped PLZT ceramics.

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Broadband photochromic effect and photoluminescence modulation in rare-earth-doped (Pb,La)(Zr,Ti)O₃ ceramics Download： 708次

Fig. 3. Two-dimensional pseudo color distribution of the transmittance of light at different wavelengths in (a) the 1 mol% ${Nd}^{3 +}$ ion-doped PLZT ceramics and (b)–(d) the 1 mol%–3 mol% ${Er}^{3 +}$ ion-doped PLZT ceramics.