A perovskite-like LaSrGaO4:Mn2+, Nd3+, Yb3+ NIR luminescent material for fluorescent temperature sensor

Up-conversion luminescence and Judd–Ofelt analysis of Nd2O3-doped yttria stabilized zirconia single crystals

“…Exchange interactions occur at <0.5 nm, whereas electric multilevel–multilevel interactions occur at a greater distance. The following equation can be used to calculate the critical distance ( R c ) between the Nd 3+ ions in (ZrO 2 ) 92 (Y 2 O 3 ) 8− x (Nd 2 O 3 ) x crystals: 41 where V is the volume of the single cell, N c is the number of sites, and X c is the critical ion concentration. Using the data in Fig.…”

“…4, R c is 1.628 nm for a Nd 2 O 3 concentration of 0.75 mol%, which is >0.5 nm, so the mechanism for Nd 3+ inter-ion interaction in this sample is of the electrical multilevel–multilevel type. 41…”

Carbon dots-based delayed fluorescent materials: Mechanism, structural regulation and application

“…Luminescent materials are of increasing importance in the energy industry and have shown growing demand in intelligent sensor, security printing, solar cells, and other fields besides display lighting (Jiang et al, 2020a;Xing et al, 2020;Zhao et al, 2020a;Zhou et al, 2017;Zhuo and Brgoch, 2021). The development of advanced luminescent materials has become a research hotspot.…”

Dual-emissive Ln3+/Mn4+ Co-doped double perovskite phosphor via site-beneficial occupation

“…[1][2][3][4][5][6][7][8][9] In recent years, the use of fluorescent materials as optical thermometers has attracted considerable attention of researchers because of their advantages of non-contact, real-time measurement, high spatial resolution and high accuracy. [10][11][12][13][14][15] The contactless fluorescent temperature indicators overcome the shortcomings of traditional thermometers and are implemented far and wide in substances with small size or in harsh environment. 16,17 Generally speaking, the matrix materials for optical temperature measurement include nanorods, nanoparticles, core-shell particles, glass ceramics containing fluorine nanocrystals and oxide blocks.…”