Enhanced upconversion luminescence of GdVO₄:Er³⁺/Yb³⁺ prepared by spray pyrolysis using organic additives

Abstract

GdVO4:Er/Yb fine particles with good upconversion luminescence was prepared by spray pyrolysis using organic additives.

Morphology of the GdVO4crystal: first-principles studies

“…We thank the Royal Society of Chemistry for permission to reproduce the Figs. 6(d) and 6(e) from Min & Jung (2019) (an open access paper) and Fig. 7(a) from Calderó n-Villajos et al (2012).…”

“…), due to the similar ionic radii between Gd 3+ and other RE (RE 3+ ) cations. Therefore, GdVO 4 could be used as a laser, phosphor or up-convertor (Cho, 2013;Yu et al, 2013;Yan & Gu, 2009;Shanta Singh et al, 2012;Tang et al, 2012;Cante et al, 2018;Shimamura et al, 1996;Rabasovic et al, 2018;Qiao et al, 2017;Min & Jung, 2019;Jovanović et al, 2018;Zheng et al, 2011;Gavrilović et al, 2016). The Bi 3+ -doped GdVO 4 crystal is also of great importance in modern electronics because of unique luminescent characteristics that can be applied in white light emitting diodes (Vasylechko et al, 2018;Krasnikov et al, 2019).…”

Elucidating the role of metal-ion co-doping towards boosting upconversion luminescence in gadolinium vanadate

“…The presence of a single stable phase over a wide range of temperatures is essential to minimize the involvement of different modes for non-radiative relaxation 43 . The large ionic radius of Gd 3+ ion also affords compatibility with a host of Ln 3+ dopants 34,[44][45][46][47][48][49][50] . Finally, selection of Yb 3+ /Er 3+ as sensitizer and activator ions was motivated by their relatively well-explored two-photon energy transfer UC process 18,51,52 .…”

Aerosol synthesis of TiO2:Er3+/Yb3+ submicron-sized spherical particles and upconversion optimization for application as anti-counterfeiting materials

“…have been studied as oxide matrix for UC phosphors. [22][23][24][25][26][27] Among them, TiO 2 has many advantages; it is relatively inexpensive due to abundant reserves, semi-conductive with having excellent photochemical stability, and low toxicity to human body. As a result, TiO 2 is used in various elds such as pearl pigments, sunscreen cosmetics, paints, catalysts, and solar cells.…”