Sm3+-doped fluorophosphate glass: Formation of Ag nanoparticles via Ag+/K+ ion exchange and their effects on optical and dielectric properties

Selective preparation of Ag species on photoluminescence of Sm3+ in borosilicate glass via Ag+‐Na+ ion exchange

“…The GSmIE1 and GSmIE2 samples showed obvious luminescence enhancement of Sm 3+ compared with that of GSm sample. The enhancement factors of Sm 3+ in GSmIE1 and GSmIE2 samples are 14.5 and 12.8, respectively, owing to the ET from Ag + ions to Sm 3+ . The luminescence intensity of GSmIE4 sample is almost same with that of the GSm sample, which suggested that Ag NCs have less effect on the luminescence of Sm 3+ upon excitation at 260 nm.…”

“…Figure B showed the emission spectra of GSm, GSmIE1, GSmIE2, GSmIE3, and GSmIE4 samples with excitation at 472 nm. The emission bands located at 565, 606, 650, and 715 nm are attributed to the transition 4 G 5/2 → 6 H 5/2 , 4 G 5/2 → 6 H 7/2 , 4 G 5/2 → 6 H 9/2 , and 4 G 5/2 → 6 H 11/2 of Sm 3+ , respectively . The luminescence intensities of Sm 3+ of GSmIE1, GSmIE2, GSmIE3, and GSmIE4 samples have slightly changed compared with GSm sample, which means that the isolated Ag + ions and Ag NCs have slight influence on the PL of Sm 3+ excited at 472 nm, the characteristic absorption of Sm 3+ .…”

“…The excitation spectra of GSm, GSmIE1, GSmIE2, GSmIE3, and GSmIE4 samples were measured by monitoring emission at 606 nm, as depicted in Figure A. There are several bands centering at 343, 365, 403, and 470 nm which originated the transitions from the ground state to 4 H 9/2 , 4 D 3/2 , 6 P 3/2 , 4 I 13/2 energy levels of Sm 3+ , respectively . GSmIE1 sample showed an excitation band peaked at 260 nm ranging from 200 to 350 nm, which originates from Ag + ions.…”

Spectroscopic properties of Sm3+-doped oxy-fluoride powders with various Sm3+ concentration and sintering temperature

“…The optical properties of Sm 3+ -doped powders have attracted much attention because of their technological applications [1][2][3][4][5][6][7][8][9]. Moreover, the Sm 3+ ions exhibit broad emission bands arising from 4 G 5/2 to 6 H J (J = 5/2, 7/2, 9/2, 11/2) in any host matrix.…”

High-aluminum phosphate glasses for single-mode waveguide-typed red light source

“…Optical waveguides have drawn much attention as they are the most indispensable and fundamental part of integrated optics circuits [1][2][3][4][5]. Among all the substrates used in fabricating optical devices, glasses based integrated optical devices possess several obvious merits over others such as an excellent coupling efficiency with glass fiber and no intrinsic material birefringence compared to crystallized semiconductors [6][7][8][9].…”