Europium-Doped Tellurite Glasses: The Eu2+ Emission in Tellurite, Adjusting Eu2+ and Eu3+ Emissions toward White Light Emission

Elkholy H, Othman H, Hager I, Ibrahim M, de Ligny D (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Materials MDPI

Book Volume: 12

Journal Issue: 24

DOI: 10.3390/ma12244140

Abstract

Europium-doped magnesium tellurite glasses were prepared using melt quenching techniques and attenuated total reflection (ATR) spectroscopy was used to study the glass structure. The glass transition temperature increased with increasing MgO content. Eu2+ and Eu3+ emissions were studied using photoluminescence spectroscopy (PL). The broad emission of Eu2+ ions centered at approximately 485 nm was found to decrease in intensity with increasing MgO content, while the Eu3+ emission was enhanced. The Eu3+ emission lay within the red orange range and its decay time was found to increase with increasing MgO content. Different excitation wavelengths were used to adjust Eu2+ to Eu3+ emissions to reach white light emission. The white light emission was obtained for the sample with the lowest MgO content under excitation in the near-UV range.

Authors with CRIS profile

Dominique de Ligny Professur für Werkstoffwissenschaften (Glas und Keramik)

Involved external institutions

Menoufia University (Minoufiya / Minufiya University) / جامعة المنوفية‎ EG Egypt (EG) National Research Centre (NRC) / المركز القومي للبحوث EG Egypt (EG)

How to cite

APA:

Elkholy, H., Othman, H., Hager, I., Ibrahim, M., & de Ligny, D. (2019). Europium-Doped Tellurite Glasses: The Eu2+ Emission in Tellurite, Adjusting Eu2+ and Eu3+ Emissions toward White Light Emission. Materials, 12(24). https://doi.org/10.3390/ma12244140

MLA:

Elkholy, Hagar, et al. "Europium-Doped Tellurite Glasses: The Eu2+ Emission in Tellurite, Adjusting Eu2+ and Eu3+ Emissions toward White Light Emission." Materials 12.24 (2019).

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