Accessible Requires Authentication Published by De Gruyter May 26, 2013

Development of Novel Luminescent Materials with High Quality Blue Light-Emitting Properties Based on Zinc Oxides

Entwicklung neuartiger auf Zinkoxid basierender Luminiszenz-Materialien mit hochwertigen Blaulicht-Emissionen
B. R. Zhang, H.Y. Yu and Cheng Rong
From the journal Materials Testing

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 D23 H4 and 1 G43 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: 1D23H4 und 1G43H6. 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.


B.R. Zhang, doctor in both State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, China, and Department of Stomatology, Aviation General Hospital. Dr. Zhang's research interest is in materials science. Dr. Zhang has published a few papers in this field.

H.Y. Yu, doctor in State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, China. Dr. Yu's research interest is in dental materials science.

C. Rong, PhD, in Department of Stomatology, Aviation General Hospital. Dr. Rong's research interest is in dental chemistry.


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Published Online: 2013-05-26
Published in Print: 2013-01-01

© 2013, Carl Hanser Verlag, München