Development of Novel Luminescent Materials with High Quality Blue Light-Emitting Properties Based on Zinc Oxides
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B. R. Zhang
Abstract
ZnO:Tm,Gd materials with high quality blue light-emitting were successfully prepared using the chemical co-precipitation method. The surface morphology, composition, crystal structure and fluorescence properties were investigated using the thermogravimetric analysis/differential thermal analysis (TG/DTA), scanning electronic microscopy (SEM), X-ray diffraction (XRD), and photoluminescence (PL). The results showed that the lowest sintering temperature was 580°C, the optimal sintering temperature was 900°C, ZnO:Tm3+, Gd3+ had two emission peaks: 1 D2 → 3 H4 and 1 G4 → 3 H6, the optimal heat preservation time was 3 h, the proportion of matrix and doping elements was 100: 2, and the optimal proportion of Tm and Gd was 3: 2.
Kurzfassung
ZnO:Tm,Gd Materialien mit hochwertiger Blaulichtausbeute wurden erfolgreich mittels des chemischen Ko-Präzipitation-Verfahrens hergestellt. Die Oberflächenmorphologie, die Zusammensetzung, die Kristallstruktur und die Fluoreszenz-Eigenschaften wurden mittels thermogravimetrischer und Differentialthermoanalyse sowie mittels Rasterelektronenmikroskopie, XRD und Photoluminiszenz untersucht. Die Ergebnisse zeigen, dass die niedrigste Sintertemperatur 580°C war, die optimale Sintertemperatur betrug 900°C. ZnO:Tm3+,Gd3+ hat zwei Emmissionspeaks: 1D2 → 3H4 und 1G4 → 3H6. Die optimale Wärmedauer betrug 3 Stunden, das Verhältnis zwischen Matrix und Dotierungselementen betrug 100:2 und das optimale Verhältnis zwischen Tm und Gd betrug 3:2.
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© 2013, Carl Hanser Verlag, München
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- Development of Novel Luminescent Materials with High Quality Blue Light-Emitting Properties Based on Zinc Oxides
- Drilling Template Used to Produce Cellular EPS Patterns for the Lost Foam Casting Process
- Kalender/Calendar
- Kalender
- Vorschau/Preview
- Vorschau
Articles in the same Issue
- Inhalt/Contents
- Inhalt
- Fachbeiträge/Technical Contributions
- Calculation of S-N Curves for Different Mean Stresses on the Basis of “PHYBALmean” for the Quenched and Tempered Steel SAE 4140
- Prüfung linearer Bauteile auf Wälzfestigkeit
- Methods for Polymer Diagnostics for the Automotive Industry*
- A New Design of Hip Prosthesis Coating using Functionally Graded Material
- Approximation of Damage Accumulation in Fibre Reinforced Polymers
- Pt-Rh Alloys: Investigation of Creep Rate and Rupture Time at High Temperatures
- Effect of Alloying Elements on the Tooling Capabilities of High Speed Steels Fabricated by Powder Metallurgy
- Microstructure and Abrasion Wear Resistance of Thermally Sprayed Cermet Coatings
- Influence of Deformation on the Phase Structure of a 30CrMnSi Steel
- Development of Novel Luminescent Materials with High Quality Blue Light-Emitting Properties Based on Zinc Oxides
- Drilling Template Used to Produce Cellular EPS Patterns for the Lost Foam Casting Process
- Kalender/Calendar
- Kalender
- Vorschau/Preview
- Vorschau
