Multicolor upconversion emission and energy transfer mechanism in Er3+/Tm3+/Yb3+ codoped tellurite glasses

Peng, Shengxi; Yang, Fengjing; Wu, Libo; Qi, Yawei; Zheng, Shichao; Yin, Deshun; Wang, Xunsi; Zhou, Yaxun

doi:10.1016/j.jqsrt.2014.05.028

Cited by 11 publications

(3 citation statements)

References 48 publications

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“…From the figure, it can be noticed that the emission intensities are increased with respect to excitation powers. The relation between logarithmic emission intensity (I) and infrared excitation power (P) demonstrates a dependence of power exponent as follows [23]:…”

Section: Up-conversion Luminescence Propertiesmentioning

confidence: 99%

Dual functional NaYF₄:Yb³⁺, Er³⁺@NaYF₄:Yb³⁺, Nd³⁺core–shell nanoparticles for cell temperature sensing and imaging

et al. 2018

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Lanthanide-doped up-conversion nanoparticles (UCNPs) provide a remote temperature sensing approach to monitoring biological microenvironments. In this research, the UCNPs of NaYF:Yb, Er@NaYF:Yb, Nd with hexagonal (β)-phase were synthesized and applied in cell temperature sensing as well as imaging after surface modification with meso-2, 3-dimercaptosuccinic acid. In the core-shell UCNPs, Yb ions were introduced as energy transfer media between sensitizers of Nd and activators of Er to improve Eremission and prevent their quenching behavior due to multiple energy levels of Nd. Under the excitations of 808 nm and 980 nm lasers, the NaYF:Yb, Er@NaYF:Yb, Nd nanoparticles exhibited an efficient green band with two emission peaks at 525 nm and 545 nm, respectively, which originated from the transitions of H → I and S → I for Er ions. We demonstrate that an occurrence of good logarithmic linearity exists between the intensity ratio of these two emission peaks and the reciprocal of the inside or outside temperature of NIH-3T3 cells. A better thermal stability is proved through temperature-dependent spectra with a heating-cooling cycle. The obtained viability of NIH-3T3 cells is greater than 90% after incubations of about 12 and 24 (h), and they possess a lower cytotoxicity of UCNPs. This work provides a method for monitoring the cell temperature and its living state from multiple dimensions including temperature response, cell images and visual up-conversion fluorescent color.

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Section: Up-conversion Luminescence Propertiesmentioning

confidence: 99%

Dual functional NaYF₄:Yb³⁺, Er³⁺@NaYF₄:Yb³⁺, Nd³⁺core–shell nanoparticles for cell temperature sensing and imaging

et al. 2018

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“…Another way to obtain white emission is up-conversion mechanism, where an excitation energy from infrared region is converted to visible emission. For this propose white light emission from glassy materials have been obtained by use of RE ions, such as Yb 3+ /Er 3+ /Tm 3+ , Yb 3+ /Tm 3+ /Tb 3+ and Yb 3+ /Tm 3+ /Ho 3+ codoped systems [10][11][12][13][14][15]. Upconverting glass hosts should posses relatively low phonon energy which makes it possible to obtain high upconversion luminescence efficiency.…”

Section: Introductionmentioning

confidence: 99%

Multicolor up-conversion emission in tellurite glasses co-doped with rare earth ions for white LED applications

et al. 2014

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In the article the glass with molar composition of 75TeO 2 -20ZnO-5Na 2 O co-doped with Yb 3+ /Tm 3+ /Ho 3+ ions was fabricated by typical melt-quenching technique. Multicolour up-conversion emission at the wavelengths of 479 nm (blue), 546 nm (green) and 650 nm (red) corresponding to transitions 1 G 4 → 3 H 6 (Tm 3+ ), 5 F 4 → 5 I 8 (Ho 3+ ) and 5 F 5 → 5 I 8 (Ho 3+ ), respectively have been observed under infrared excitation (λ exc = 980 nm) at room temperature. Influence of molar ratio of active ions on the colour coordinates (CIE-1931) have been investigated.

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“…[13][14][15] On the other hand, Yb 3+ −Tm 3+ generates red and blue light via ET and excited state absorption (ESA). 16 Hence, the Yb 3+ as sensitizer ion and Er 3+ −Tm 3+ as activator ions can produce simultaneously RGB light to generate white light [17][18][19] by adjusting the excitation power with a 980 nm laser diode and, in this fashion, control the relative intensities of each emission band.…”

Section: Introductionmentioning

confidence: 99%

White light emission under 980 nm and Judd-Ofelt analysis of tellurite-zinc glasses doped with Er>sup<3+>/sup<-Yb>sup<3+>/sup<-Tm>sup<3+>/sup<

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He says, "Now you'd know all the languages you want to know what the name of that bird is, and when you finish with all that" he says, "you'll know absolutely nothing whatever about the bird". He knew the difference between knowing the name of something and knowing something. " Richard Feynman "Science cannot solve the ultimate mystery of nature. And that is because, in the last analysis, we ourselves are part of nature and therefore part of the mystery that we are trying to solve." Max Planck "The good thing about science is that it's true whether or not you believe in it." Neil deGrasse Tyson "Would you tell me, please, which way I ought to go from here?" "That depends a good deal on where you want to get to," said the Cat. "I don't much care where-" said Alice. "Then it doesn't matter which way you go," said the Cat. "-so long as I get somewhere," Alice added as an explanation. "Oh, you're sure to do that," said the Cat, "if you only walk long enough." Lewis Carroll, Alice's adventures in Wonderland "One day your life will flash before your eyes. Make sure it's worth watching." Gerard Way Piensa en cosas felices, vive cosas felices, sé alguien feliz.

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Multicolor upconversion emission and energy transfer mechanism in Er3+/Tm3+/Yb3+ codoped tellurite glasses

Cited by 11 publications

References 48 publications

Dual functional NaYF₄:Yb³⁺, Er³⁺@NaYF₄:Yb³⁺, Nd³⁺core–shell nanoparticles for cell temperature sensing and imaging

Dual functional NaYF₄:Yb³⁺, Er³⁺@NaYF₄:Yb³⁺, Nd³⁺core–shell nanoparticles for cell temperature sensing and imaging

Multicolor up-conversion emission in tellurite glasses co-doped with rare earth ions for white LED applications

White light emission under 980 nm and Judd-Ofelt analysis of tellurite-zinc glasses doped with Er>sup<3+>/sup<-Yb>sup<3+>/sup<-Tm>sup<3+>/sup<

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Multicolor upconversion emission and energy transfer mechanism in Er3+/Tm3+/Yb3+ codoped tellurite glasses

Cited by 11 publications

References 48 publications

Dual functional NaYF4:Yb3+, Er3+@NaYF4:Yb3+, Nd3+core–shell nanoparticles for cell temperature sensing and imaging

Dual functional NaYF4:Yb3+, Er3+@NaYF4:Yb3+, Nd3+core–shell nanoparticles for cell temperature sensing and imaging

Multicolor up-conversion emission in tellurite glasses co-doped with rare earth ions for white LED applications

White light emission under 980 nm and Judd-Ofelt analysis of tellurite-zinc glasses doped with Er>sup<3+>/sup<-Yb>sup<3+>/sup<-Tm>sup<3+>/sup<

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Dual functional NaYF₄:Yb³⁺, Er³⁺@NaYF₄:Yb³⁺, Nd³⁺core–shell nanoparticles for cell temperature sensing and imaging

Dual functional NaYF₄:Yb³⁺, Er³⁺@NaYF₄:Yb³⁺, Nd³⁺core–shell nanoparticles for cell temperature sensing and imaging