The influence of the Sc3+ dopant on the transmittance of (Y, Er)3Al5O12 ceramics

Elena Dobretsova; Vadim Zhmykhov; Sergey Kuznetsov; Irina Chikulina; Marina Nikova; Vitaly Tarala; Dmitry Vakalov; Roman Khmelnitsky; Alexander Pynenkov; Konstantin Nishchev; Vladimir Tsvetkov

doi:10.1039/d1dt02419a

The influence of the Sc³⁺ dopant on the transmittance of (Y, Er)₃Al₅O₁₂ ceramics

Dalton Trans. 2021 Oct 19;50(40):14252-14256. doi: 10.1039/d1dt02419a.

Authors

Affiliations

¹ Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, 119991, Russia. elenadobretsova89@gmail.com.
² North Caucasus Federal University, Scientific and Laboratory Complex Clean Room, Stavropol, 355017, Russia.
³ The Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, 119991, Russia.
⁴ Kotelnikov Institute of Radio-Engineering and Electronics of the Russian Academy of Sciences, Fryazino, 141190, Russia.
⁵ N. P. Ogarev National Research Mordovian State University, Saransk, 430005, Russia.

PMID: 34553207
DOI: 10.1039/d1dt02419a

Abstract

High erbium content yttrium aluminum garnet (Er:YAG) and yttrium scandium aluminum garnet (Er:YSAG) ceramics have been fabricated from Er:YAG and Er:YSAG powders, respectively. The powders have been synthesized via a reverse precipitation technique, processed by uniaxial pressing followed by cold isostatic pressing, and sintered in a vacuum. TEOS (tetraethoxysilane) was used as a sintering additive. After vacuum sintering, all of the samples were processed by annealing in air to increase the transmittance and polished on both sides. The influence of the Sc³⁺ content and the synthesis conditions on the microstructure and optical transparency of the Er:YAG and Er:YSAG ceramics have been investigated in detail. It has been found that changing Al³⁺ for the bigger Sc³⁺ ion leads to the transmittance increasing to up to 60% at a wavelength of about 1500 nm.