Synthesis and characterization of photoluminescent cerium-doped yttrium aluminum garnet

Journal Article · Mon Dec 01 00:00:00 EST 2008 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2008.01.024· OSTI ID:21195033

Fadlalla, H M.H. , ^[1]; Tang, C C; Elssfah, E M; Zhang, J; Ammar, E; Lin, J; Ding, X X ^[1]

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1. Department of Physics, Central China Normal University, Wuhan 430079 (China)

Powder phosphor yttrium aluminum garnet (YAG), doped with trivalent cerium (Ce{sup 3+}) is synthesized by sol-gel method. The formation of YAG and YAG:Ce (cerium-doped yttrium aluminum garnet) was investigated by means of X-ray diffraction (XRD). Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were also used. The purified crystalline phases of YAG and YAG:Ce were obtained at 1000 deg. C. The maximum average grain size is about 20-23 nm for undoped samples and 28-34 nm for doped samples. The crystalline YAG:Ce emission shows one peak in the range 480-535 nm with the maximum near 520 nm. Photoluminescence (PL) intensity of 5d {yields} 4f transition of Ce{sup 3+} increased with increasing annealing temperature. With increasing the concentration of Ce{sup 3+}, the photoluminescence peak shifts towards the red region.

• OSTI ID: 21195033
• Journal Information: Materials Research Bulletin, Vol. 43, Issue 12; Other Information: DOI: 10.1016/j.materresbull.2008.01.024; PII: S0025-5408(08)00039-1; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
ANNEALING
CERIUM IONS
CRYSTAL STRUCTURE
DOPED MATERIALS
GARNETS
GRAIN SIZE
NEODYMIUM LASERS
OPTICAL PROPERTIES
PHOTOLUMINESCENCE
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
SYNTHESIS
TEMPERATURE RANGE 1000-4000 K
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS