𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Structure and optical properties under VUV/UV excitation of Eu2+doped Alkaline Earth Aluminate Phosphors

✍ Scribed by Nötzold, D. ;Wulff, H. ;Jilg, S. ;Kantz, L. ;Schwarz, L.

Book ID
105363393
Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
183 KB
Volume
203
Category
Article
ISSN
0031-8965

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Polycrystalline hexagonal alkaline earth aluminates M~3~Al~16~O~27~ doped by divalent europium were prepared by solid state reaction. The crystal structure and optical properties at room temperature were investigated. The structure parameters were refined using Rietveld refinement procedures. The space group of the materials is P6~3~/mmc. Eu^2+^ ions occupy the 2d cation position of the large cation in the unit cell. The blue emission of the phosphors due to transitions between 4f^6^5d and 4f^7^ configurations of the Eu^2+^ ion can be excited by UV radiation and very efficient also by VUV radiation. Spectral position and band width at half height of the emission band as well as the shape of the excitation spectrum and the luminous flux of the investigated aluminate phosphors depend on their composition. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

📜 SIMILAR VOLUMES

Structure and optical properties under V
Structure and optical properties under VUV excitation of Mn2+doped Alkaline Earth Aluminate Phosphors
✍ Nötzold, D. ;Wulff, H. ;Jilg, S. ;Kantz, L. ;Schwarz, L. 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 195 KB

## Abstract Polycrystalline hexagonal alkaline earth aluminates M~3~Al~16~O~27~ with M~3~:BaMg~2~, Ba~1.5~Mg~1.5~, and Sr~1.5~Mg~1.5~ doped by divalent manganese and prepared by solid state reaction were investigated concerning their crystal structure and optical properties at room temperature. Rie