Enhanced visible and mid-IR emissions in Er/Yb-codoped K0.5Na0.5NbO3 ferroelectric ceramics

Wu, Xiaomao; Chung, Tat Hang; Kwok, Kin Wing

doi:10.1016/j.ceramint.2015.07.018

Cited by 22 publications

(2 citation statements)

References 33 publications

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“…Two years later, this group found strong green (510-590 nm) and a relatively weak red (645-695 nm) emissions in the Er doped KNN ceramics under the 980 nm excitation, and it is possible to modulate the ratio of red to green emission by adjusting the Er concentration. Similarly, Wu et al (2013), Wu et al (2015a), and Wu et al (2015b) found that the Er doped KNN ceramics fabricated by sol-gel method exhibited luminescent bands at 527, 548, 660, and 487 nm under the excitation of 980 nm. Besides, Er doping is beneficial to the formation of fine and uniform grains, which helps to enhance the up-conversion efficiency and luminous efficiency.…”

Section: Rare-earth Doped Bnt-bt Ceramicmentioning

confidence: 85%

Review of Research on the Rare-Earth Doped Piezoelectric Materials

et al. 2021

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The piezoelectric materials, such as ceramics, crystals, and films, have wide applications in the mechanical industry, medical imaging, electronic information, and ultrasonic devices, etc. Generally, adding oxide dopants, or introducing new solid solutions to form the morphotropic phase boundary of the piezoelectric materials were common strategies to enhance the electric properties. In recent decades, rare-earth elements doped piezoelectric materials have attracted much attention due to their multifunctional performances combining piezoelectric and photoluminescence properties, which has potential applications in ultrasonics, electronics, automatic control, machinery and optoelectronic fields. An overview of the recent investigations and perspectives on rare-earth doped piezoelectric ceramics, single crystals, and films were presented.

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Section: Rare-earth Doped Bnt-bt Ceramicmentioning

confidence: 85%

Review of Research on the Rare-Earth Doped Piezoelectric Materials

et al. 2021

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“…In this paper, the composition 47(Ba 0.7 Ca 0.3 )TiO 3 -0.53Ba (Zr 0.2 Ti 0.8 )O 3 is near MPB at room temperature according to phase diagram [6]. And the rare earth elements are frequently employed in ceramics to obtain excellent electrical properties, such as Pr, Yd and Er [7][8]. In addition, the CaCl 2 as a sintering aid can decrease the sintering temperature without sacrificing the electric properties of BaTiO 3 lead-free ceramics, because its melting point is about 780 ℃, which below the sintering temperature of BCZT (about 1450 ℃).…”

Section: Introductionmentioning

confidence: 99%