<abstract xmlns="http://www.w3.org/1999/xhtml">A novel reddish-orange emitting phosphor Eu-activated KLaSiO4 was synthesized by the conventional solid-state reaction at 1200 °C. The luminescence properties of KLaSiO4:Eu phosphor were investigated, and the critical concentration of the activator ion (Eu3+) was established as 0.02 mol per formula unit. Chromaticity coordinates of a typical KLa0.98SiO4:0.02Eu phosphor were x = 0.614 and y = 0.385. The phosphor exhibited reddish-orange luminescence with dominating emission at 612 nm, corresponding to 5D0 → 7F2 of Eu3+. Furthermore, the phosphor was characterized by excellent thermal stability, implying its potential use in white light emitting diodes.</abstract>

A novel reddish-orange emitting phosphor Eu-activated KLaSiO4 was synthesized by the conventional solid-state reaction at 1200 °C. The luminescence properties of KLaSiO4:Eu phosphor were investigated, and the critical concentration of the activator ion (Eu3+) was established as 0.02 mol per formula unit. Chromaticity coordinates of a typical KLa0.98SiO4:0.02Eu phosphor were x = 0.614 and y = 0.385. The phosphor exhibited reddish-orange luminescence with dominating emission at 612 nm, corresponding to 5D0 → 7F2 of Eu3+. Furthermore, the phosphor was characterized by excellent thermal stability, implying its potential use in white light emitting diodes.

Luminescent properties of a novel reddish-orange phosphor Eu-activated KLaSiO4

Department of Material Science and Engineering

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Luminescent properties of a novel reddish-orange phosphor Eu-activated KLaSiO

A novel reddish-orange emitting phosphor Eu-activated KLaSiO4 was synthesized by the conventional solid-state reaction at 1200 °C. The luminescence properties...

Luminescent properties of a novel reddish-orange phosphor Eu-activated KLaSiO₄

Published Online: Aug 02, 2019

Page range: 296 - 300

Received: Jan 16, 2019

Accepted: Feb 11, 2019

DOI: https://doi.org/10.2478/msp-2019-0016

Keywords
potassium lanthanum silicate, luminescence, reddish-orange phosphors, Eu

© 2019 Guo Feng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Luminescent properties of a novel reddish-orange phosphor Eu-activated KLaSiO4

Published Online: Aug 02, 2019

Page range: 296 - 300

Received: Jan 16, 2019

Accepted: Feb 11, 2019

DOI: https://doi.org/10.2478/msp-2019-0016

Keywordspotassium lanthanum silicate, luminescence, reddish-orange phosphors, Eu

© 2019 Guo Feng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Luminescent properties of a novel reddish-orange phosphor Eu-activated KLaSiO₄

Keywords
potassium lanthanum silicate, luminescence, reddish-orange phosphors, Eu