Upconversion metal (Zr, Hf, and Ta) oxide aerogels

Authors: Kiselev G.O., Kiseleva A.P., Ilatovskiy D.A., Koshevaya E.D., Nazarovskaia D.A., Gets D.S., Vinogradov V.V., Krivoshapkin P.V., Krivoshapkina E.F.

Abstract

A major obstacle in developing upconversion aerogels is the incompatibility of the highly-developed porosity and the crystal structure required for converting light to a shorter wavelength. We propose a novel method for creating a sol–gel procedure for synthesizing metal (Zr, Hf, and Ta) oxide upconverison aerogels uniformly doped with Er³⁺ and Yb³⁺ by precisely adjusting the calcination conditions.

DOI: 10.1039/C9CC02452B

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https://pubs.rsc.org/en/content/articlehtml/2019/cc/c9cc02452b