Up-conversion enhancement in Er3+-Ag co-doped zinc tellurite glass: Effect of heat treatment

Enhanced luminescence from silver nanoparticles integrated Er3+-doped boro-tellurite glasses: Impact of annealing temperature

“…Sahar et al [14,15] acknowledged the overall luminescence enhancement by attributing to the SPR (major contribution) and ET (minor contribution) mechanism. Other researchers [16,17] argued that the SPR mediated effect as the major factor for enhancement and the ET from Ag to RE ions has insignificant contribution.…”

“…The plasmon peaks in tellurite glasses are often overshadowed due to overlap of large optical density of Er 3+ ions[14,16,34].…”

Silver nanoparticles enhanced luminescence properties of Er3+ doped tellurite glasses: Effect of heat treatment

“…These experimental observations are quite similar to those obtained with other tellurite glasses containing silver NPs. 12,21 It is interesting to note that the position of the SPR peak is red-shifted from 518 nm to 538 nm after 20 h of annealing. The position of SPR peak depends on a number of factors, including particle size and shape, refractive index, and the nature of the surrounding medium.…”

“…Recently, Er 3þ and Ag co-doped phosphate, bismuth, germanate, and tellurite glasses have been extensively investigated and fluorescence enhancement phenomena have been observed. [8][9][10][11][12] Among all of the above glasses, tellurite glasses have proven to be one of the promising hosts for such applications due to its high-quality optical properties such as high metal solubility, high refractive index, good mechanical strength, large chemical durability, low phonon energy as compared to silicates and borates, and wide transmission window, from the visible to the mid-infrared region. [13][14][15][16] To the best of our knowledge, only few studies are found in the literature with enhancement in 1.53 lm band fluorescence when embedding metallic NPs inside the glass host.…”

Silver doping of glasses

“…The particularly sharp plasmon resonance of silver nanoclusters in glass allows in principle the realization of several interesting structures in plasmonic devices, and since the beginning of the 2000s the plasmonics has become a field in which glass-silver nanocomposites have drawn new attention [60], for example in solar technologies [60][61], or to enhance the luminescence properties of rare earths-Ag co-doped glasses [62][63][64][65]. Recently, the possible use of properly designed population of silver nanoclusters has been also explored also for high capacity optical recording media [59,66], which should potentially offer perennial recording storage with very high packing capacity.…”