Synthesis of optical Nd:(Y,Gd)₂O₃ ceramic and investigation of its spectroscopic characteristics | Izvestiya vuzov. Fizika. 2021. № 11. DOI: 10.17223/00213411/64/11/61

Synthesis of optical Nd:(Y,Gd)₂O₃ ceramic and investigation of its spectroscopic characteristics

Fabrication of optical ceramics based on solid solution of yttrium and gadolinium sesquioxides activated by Nd³⁺ ions was reported. Nanopowder of Nd_0.08(Y_0.496Gd_0.496)₂O₃ synthesized by laser ablation method was used as raw material. It was determined that laser-ablated nanoparticles initially have monoclinic phase transformation of which into cubic phase is started at the temperature of 1100 °C and fully completed at 1300 °C. It was found that the best transparency of samples (79.9% at the wavelength of 1060 nm) and lowest content of scattering centers of 2.7 ppm are reached by vacuum sintering of nanopowder previously calcined at 1000 °C for 3 h. A blue-shift of Nd³⁺ emission bands in (Y,Gd)₂O₃ matrix with respect to Y₂O₃ was observed as a result of measuring of photoluminescence spectrum. Broadening of emission bands and their partial overlap was determined suggesting the alteration of local environment of neodymium which embeds into positions of yttrium as well as gadolinium.

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Keywords

nanopowder, gadolinium oxide, neodymium, optical ceramic, luminescence spectrum

Authors

Name	Organization	E-mail
Osipov V.V.	Institute of Electrophysics UrB RAS	osipov@iep.uran.ru
Shitov V.A.	Institute of Electrophysics UrB RAS	vlad@iep.uran.ru
Vasin D.A.	Institute of Electrophysics UrB RAS, Ekaterinburg; Ural Federal University named after the first President of Russia B.N. Yeltsin	danyaia199949@gmail.com
Spirina A.V.	Institute of Electrophysics UrB RAS	rasuleva@iep.uran.ru
Makarova A.S.	Institute of Electrophysics UrB RAS	acole_n15@mail.ru
Orlov A.N.	Institute of Electrophysics UrB RAS	orlov@iep.uran.ru
Maksimov R.N.	Institute of Electrophysics UrB RAS, Ekaterinburg; Ural Federal University named after the first President of Russia B.N. Yeltsin	romanmaksimov@e1.ru

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