Strong blue emission from Pr3+ ions through energy transfer process from Nd3+ to Pr3+ via Yb3+ in tellurite glass

Thermal and Photoluminescence Properties of Nd³⁺ Doped Tellurite Nanoglass

“…The intensity of heat-treated sample shows enhancement compared to un-treated one. Using excited state absorption (ESA) mechanism [14], the electron rapidly decays nonradiatively to the metastable 4 observation is tallies with the report of Wright [15].…”

“…3.81 © 2013 Trans Tech Publications Ltd, Switzerland This is an open access article under the CC-BY 4.0 license (https://creativecommons.org/licenses/by/4.0/) earth ion solubility and low phonon energy which enables to design efficient laser and amplifier devices [3]. Therefore, the combination of rare earth with tellurite glasses has been a key to the development of many areas like optical sensing, biochemical studies and biomedical [4,5].…”

“…Additionally, most tellurite glasses have a great rare- earth ion solubility and low phonon energy which enables to design efficient laser and amplifier devices [3]. Therefore, the combination of rare earth with tellurite glasses has been a key to the development of many areas like optical sensing, biochemical studies and biomedical [4,5].…”

Infrared to infrared upconversion emission in Pr3+/Yb3+ co-doped La2O3 and La(OH)3 nano-phosphors: A comparative study

“…Yb 3+ ions on de-excitation emit broad band near 980 nm (930-1030 nm). It also emits another band at 488 nm by cooperative upconversion [48]. At the same time, Yb 3+ ions transfer its excitation energy to Pr 3+ ions.…”

Upconversion luminescence of Nd3+–Pr3+ codoped CsCl modified Ge–Ga–S glasses and the relevant energy transfer mechanism

“…Nd 3+ can be a good sensitizer because the lifetime of the 4 F 3/2 level in glasses is long enough to enable efficient energy transfer (ET) to other REs. For example, visible emissions from Pr 3+ ions via ET from Nd 3+ ions have been realized in Pr 3+ /Nd 3+ co-doped fluorozirconate and tellurite glasses upon 796 nm or 800 nm laser excitation [6,7]. But in order to obtain UC luminescent materials with even higher quantum efficiency, hosts with lower phonon energies are required.…”