Laser-Induced Tunable White Light Emission in Yb3+/Er3+/Tm3+ Ion-Doped La2Ti2O7

Selim Burak Cantürk, Sevcan Tabanli, Hümeyra Örücü*, Seval Genç, Murat Erdem, Gönül Eryürek

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A series of compounds with the general formula (La1−xREx)2Ti2O7 (x = 0.005, 0.015, and 0.025) doped with Yb3+, Er3+, and Tm3+ rare Earth ions were prepared by the traditional solid-state reaction at 1350 °C for 24 h. The X-ray powder diffraction technique, high-resolution transmission electron microscopy, and photoluminescence spectroscopy technique were used to characterize the structure and optical properties of the compounds. All compounds showed a single-phase orthorhombic structure with a space group Pna2 1, as confirmed by JCPDS (Cart No: 01-070-1690). The La1.9Yb0.04Er0.01Tm0.05 Ti2O7 nanocrystals exhibited intense tunable white light luminescence signals in the full spectrum, and green and blue emissions were predominant in the Yb3+/Er3+− and Yb3+/Tm3+-doped titanates, respectively. In this study, the influence of concentration and excitation power on the upconversion luminescence, color, and calculated laser-power-induced heating performance of La2Ti2O7 nanophosphors were investigated at room temperature.

Orijinal dilİngilizce
Makale numarası076012
DergiECS Journal of Solid State Science and Technology
Basın numarası7
Yayın durumuYayınlandı - Tem 2023

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Publisher Copyright:
© 2023 The Electrochemical Society (“ECS”). Published on behalf of ECS by IOP Publishing Limited.


This work was supported by Marmara University through the BAPKO project FEN-E-090517–0276. S. Tabanli, H. Örücü, M. Erdem, and G. Eryürek wish to express their warm and sincere thanks to Prof. Baldassare Di Bartolo for giving us an opportunity to study in his spectroscopy laboratory at Boston College (USA) as a research scholar. We owe special thanks to Prof. Dr. Ayhan Mergen who, although no longer with us, led to the start of this study and he still continues to inspire us by his dedication to his career.

FinansörlerFinansör numarası
Marmara ÜniversitesiFEN-E-090517–0276

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