Review of the Properties of Up-Conversion Phosphors for New Emissive Displays

Rapaport, Alexandra; Milliez, Janet; Bass, Michael; Cassanho, A.; Jenssen, H. P.

doi:10.1109/jdt.2005.863781

Cited by 148 publications

(80 citation statements)

References 26 publications

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“…In Figure 3, the emission spectra of seven selected samples of the Y 2 BaZnO 5 :Yb 3+ (x%),Ho 3+ (0.5%) (x=1, 3,5,7,9,11,13) family are presented. The upconversion emission intensity is seen to increase with the Yb 3+ concentration, with an optimum performance around 5% Yb 3+ .…”

Section: Concentration Dependence Of Uc Efficienciesmentioning

confidence: 99%

“…[1][2][3] Potential applications of these materials include biosensors, [4][5][6] colour displays [7][8][9] and solar cells. [10][11][12][13] One of the first historical applications of upconverting materials was in the area of solid-state compact lasers 14 emitting in the visible, with important applications in the areas of data storage, reprographics, and underwater optical communications.…”

Section: Introductionmentioning

confidence: 99%

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Efficient oxide phosphors for light upconversion; green emission from Yb³⁺and Ho³⁺co-doped Ln₂BaZnO₅(Ln = Y, Gd)

et al. 2011

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The optical properties of Yb 3+ and Ho 3+ co-doped Y 2 BaZnO 5 , synthesized by solid-state reactions, are investigated in detail. Under 977 nm excitation (~2.5 W/cm 2 ), bright green upconversion emission is observed. Concentration dependence studies at room temperature show that relatively high infrared to visible upconversion efficiencies are obtained with values up to ~2.6%. The results of power dependence studies and temperature dependent lifetime measurements allow us to determine the dominant upconversion mechanisms in Yb 3+ : Ho 3+ co-doped Y 2 BaZnO 5 oxides. The materials presented in this paper constitute new and efficient upconversion phosphors which may find utility in a variety of applications.

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Section: Concentration Dependence Of Uc Efficienciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficient oxide phosphors for light upconversion; green emission from Yb³⁺and Ho³⁺co-doped Ln₂BaZnO₅(Ln = Y, Gd)

et al. 2011

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“…In inorganic systems, UC is based on the availability of multiple long-lived, metastable excited states, typically encountered in rare-earth elements. Thus far, photon UC has been utilized in various applications such as IR quantum counters, solid-state lasers, in lighting, displays, and solar cells [4][5][6]. In recent years, the successful synthesis of colloidally stable solutions of monodisperse upconverting nanoparticles (UCNPs) with diameters on the order and less than 50 nm has opened up new opportunities in this general area [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Enhanced UV Upconversion Emission Using Plasmonic Nanocavities

Halawany

Hodaei

et al. 2016

Conference on Lasers and Electro-Optics

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Upconversion of near infrared (NIR) into ultraviolet (UV) radiation could lead to a number of applications in bio-imaging, diagnostics and drug delivery. However, for bare nanoparticles, the conversion efficiency is extremely low. In this work, we experimentally demonstrate strongly enhanced upconversion emission from an ensemble of β-NaYF 4 :Gd 3+ /Yb 3+ /Tm 3+ @NaLuF 4 core-shell nanoparticles trapped in judiciously designed plasmonic nanocavities. In doing so, different metal platforms and nanostructures are systematically investigated. Our results indicate that using a cross-shape silver nanocavity, a record high enhancement of 170-fold can be obtained in the UV band centered at a wavelength of 345 nm. The observed upconversion efficiency improvement may be attributed to the increased absorption at NIR, the tailored photonic local density of states, and the light out-coupling characteristics of the cavity. References and links1. F. Auzel, "Upconversion and anti-Stokes processes with f and d ions in solids," Chem. Rev. 104(1), 139-174 (2004). 2. X. Li, F. Zhang, and D. Zhao, "Highly efficient lanthanide upconverting nanomaterials: progresses and challenges," Nano Today 8(6), 643-676 (2013). 3. N. Bloembergen, "Solid state infrared quantum counters," Phys. Rev. Lett. 2(3), 84-85 (1959) . 36. E. M. Purcell, "Spontaneous emission probabilities at radio frequencies," Phys. Rev. 69, 681 (1946). 37.

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“…Finally our recent investigation [16][17][18][19][20][21] of those materials has enabled us to understand the optimal conditions for operation (excitation conditions, screen preparation, choice of materials) as are discussed in this paper.…”

Section: Introductionmentioning

confidence: 99%

Materials and Modulators for True 3-Dimensional Displays

Bass¹

2005

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We review the properties of up-conversion materials and assess their potential for a new display technology. Up-conversion materials absorb near infrared light and reemit in the visible. Some of their most appealing characteristics for displays are: a wide color gamut with very saturated colors, very high brightness operation without damage to the emitters, long lifetimes and efficiencies comparable to those of existing technologies.Other advantages include simplicity of fabrication, versatility of operation modes, and the potential for greatly reduced display weight and depth.

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Review of the Properties of Up-Conversion Phosphors for New Emissive Displays

Cited by 148 publications

References 26 publications

Efficient oxide phosphors for light upconversion; green emission from Yb³⁺and Ho³⁺co-doped Ln₂BaZnO₅(Ln = Y, Gd)

Efficient oxide phosphors for light upconversion; green emission from Yb³⁺and Ho³⁺co-doped Ln₂BaZnO₅(Ln = Y, Gd)

Enhanced UV Upconversion Emission Using Plasmonic Nanocavities

Materials and Modulators for True 3-Dimensional Displays

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Review of the Properties of Up-Conversion Phosphors for New Emissive Displays

Cited by 148 publications

References 26 publications

Efficient oxide phosphors for light upconversion; green emission from Yb3+and Ho3+co-doped Ln2BaZnO5(Ln = Y, Gd)

Efficient oxide phosphors for light upconversion; green emission from Yb3+and Ho3+co-doped Ln2BaZnO5(Ln = Y, Gd)

Enhanced UV Upconversion Emission Using Plasmonic Nanocavities

Materials and Modulators for True 3-Dimensional Displays

Contact Info

Product

Resources

About

Efficient oxide phosphors for light upconversion; green emission from Yb³⁺and Ho³⁺co-doped Ln₂BaZnO₅(Ln = Y, Gd)

Efficient oxide phosphors for light upconversion; green emission from Yb³⁺and Ho³⁺co-doped Ln₂BaZnO₅(Ln = Y, Gd)