Hydrothermal synthesis of Y2O3:Eu3+ nanorods and its growth mechanism and luminescence properties

Chen, Guowei; Qi, Weichang; Li, Yongbo; Yang, Chuan; Zhao, Xiaopeng

doi:10.1007/s10854-016-4470-0

Cited by 20 publications

(11 citation statements)

References 30 publications

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“…Based on the hydrothermal preparation of Y2O3:Eu 3+ microsheet phosphors [45][46][47] , a fundamental model for Y2O3:Eu 3+ +Ag was designed referencing the concepts of topological materials which was prepared just via illumination ( Fig. 1).…”

Section: Topological Luminophor Modelmentioning

confidence: 99%

Topological Luminophor Y₂O₃:Eu³⁺+Ag with High Electroluminescence Performance

Wang

Chen

et al. 2018

ACS Appl. Mater. Interfaces

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Improving luminescent intensity is a significant technical requirement and scientific problem for the luminescent performance of fluorophor materials through the ages. The process control and luminescence performance still limit the developments of luminescent intensity even through it can be improved partly by covering or magnetron sputtering of precious metals on the surface of the fluorophore materials. On the basis of the improvement of luminescence center radiative transition rate by surface plasma resonance and Y2O3:Eu 3+ microsheet phosphors, a fundamental model for topological luminophor Y2O3:Eu 3+ +Ag was designed referencing the concepts of topological materials in order to enhance luminescent performance by composite-luminescence, which composed of Eu 3+ centric electroluminescence and surface plasma-enhanced photoluminescence by Ag. The topological luminophor Y2O3:Eu 3+ +Ag was successfully synthesized with an asymmetric-discrete Ag nanocrystal topological structure on the surface just via illumination. Experiment results suggest that the luminescence performance of topological luminophor Y2O3:Eu 3+ +Ag increased by about 300% compared with that of Y2O3: Eu 3+ phosphors on the same conditions. The design of a topological luminophor provides a new approach to further improve the luminescent intensity of phosphors.

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Section: Topological Luminophor Modelmentioning

confidence: 99%

Topological Luminophor Y₂O₃:Eu³⁺+Ag with High Electroluminescence Performance

Wang

Chen

et al. 2018

ACS Appl. Mater. Interfaces

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“…However, recently the device including organic dye (hybrid organic–inorganic) represents a novel approach to overcome the limited choice of color. Because of this method, studies of dispersed‐type inorganic EL devices have attracted attention …”

Section: Introductionmentioning

confidence: 99%

“…Because of this method, studies of dispersed-type inorganic EL devices have attracted attention. 15,16 Although the dispersed-type inorganic EL can be prepared using a simple process, a high voltage and a high frequency are required to drive the devices. Sophisticated electric circuits are required.…”

Section: Introductionmentioning

confidence: 99%

Emission of dispersed‐type inorganic EL devices with frequency‐variable high‐voltage oscillation circuit

2018

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Dispersed‐type inorganic electroluminescent (EL) devices composed of a transparent electrode, a phosphor, a dielectric, and a back electrode were prepared under various conditions using a zinc sulfide (ZnS)‐based phosphor. Additionally, a voltage/frequency variable circuit was designed. A compact high‐voltage/frequency variable circuit including three modules for boosting, frequency conversion, and voltage conversion was designed. A 140 Vpp voltage and a frequency in the range of 270 Hz to 2.4 kHz can be controlled by this circuit. The emission has begun to be observed at a voltage about 60 Vpp and a frequency of 400 Hz, at a voltage about 40 Vpp and a frequency of 1.4 kHz, 2.4 kHz, respectively. The emission intensity increased with an increase in frequency; emission with a wavelength of 450 nm was strongly influenced by the frequency. The luminescence and the electrical properties were affected by the preparation conditions including device structures, dispersion of ZnS:Cu, and Cl particles because of the current path generated by defects in the EL cell.

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“…Y 2 O 3 has also become an important material for optical applications because of its ability to be a host material for rare earth elements. Especially, europium (Eu)-doped Y 2 O 3 shows an efficient red emission, which makes it suitable to be used as a red-emitting phosphor material [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…Y 2 O 3 :Eu has been synthesized in powder form by using a number of different methods, including solution combustion [3], hydrothermal [4], co-precipitation [6], solid state reaction [7], sol gel [8], and spray pyrolysis [9] techniques. Compared to the powder form, Y 2 O 3 :Eu in thin-film form could offer several advantages, such as better thermal stability, good adhesion to the substrate surface, higher resolution, and uniform properties across the covered area [10].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Luminescence of Europium-doped Yttrium Oxide Thin Films

Chung

Kim

2017

Appl. Sci. Converg. Technol.

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Thin films of europium-doped yttrium oxide (Y 2 O 3 :Eu) were prepared on Si (100) substrates by using a radio frequency (RF) magnetron sputtering. After the deposition, the films were annealed at 1000 o C in an air ambient for 1 hour. X-ray diffraction analysis revealed that the Y 2 O 3 :Eu films had a polycrystalline cubic α-Y 2 O 3 structure. The as-deposited films showed no photoluminescence (PL), which was due to poor crystalline quality of the films. The crystallinity of the Y 2 O 3 :Eu films was significantly improved by annealing. The strong red PL emission was observed from the annealed Y 2 O 3 :Eu films and the highest intensity peak was centered at around 613 nm. This emission peak originated from theF 2 transition of the trivalent Eu ions occupying the C 2 sites in the cubic α-Y 2 O 3 lattice. The broad PL excitation band was observed at wavelengths below 280 nm, which was attributed to the charge transfer transition of the trivalent Eu ion.

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Hydrothermal synthesis of Y2O3:Eu3+ nanorods and its growth mechanism and luminescence properties

Cited by 20 publications

References 30 publications

Topological Luminophor Y₂O₃:Eu³⁺+Ag with High Electroluminescence Performance

Topological Luminophor Y₂O₃:Eu³⁺+Ag with High Electroluminescence Performance

Emission of dispersed‐type inorganic EL devices with frequency‐variable high‐voltage oscillation circuit

Preparation and Luminescence of Europium-doped Yttrium Oxide Thin Films

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Hydrothermal synthesis of Y2O3:Eu3+ nanorods and its growth mechanism and luminescence properties

Cited by 20 publications

References 30 publications

Topological Luminophor Y2O3:Eu3++Ag with High Electroluminescence Performance

Topological Luminophor Y2O3:Eu3++Ag with High Electroluminescence Performance

Emission of dispersed‐type inorganic EL devices with frequency‐variable high‐voltage oscillation circuit

Preparation and Luminescence of Europium-doped Yttrium Oxide Thin Films

Contact Info

Product

Resources

About

Topological Luminophor Y₂O₃:Eu³⁺+Ag with High Electroluminescence Performance

Topological Luminophor Y₂O₃:Eu³⁺+Ag with High Electroluminescence Performance