Preparation and photoluminescence of Bi³⁺-doped strontium choloapatite nanorods

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• 作者：Zhiliang Xiu ; Suwen Liu ; Fengxiu Xu ; Weina Yu ; Jiaoxian Yu ; Guangjian Feng
• 关键词：Nanomaterials ; Luminescence ; Precipitation
• 刊名：Materials Letters
• 出版年：2007
• 出版时间：October 2007
• 年：2007
• 卷：61
• 期：26
• 页码：4800-4802
• 全文大小：314 K

文摘

The photoluminescence properties of Bi³⁺-doped Sr₅(PO₄)₃Cl nanocrystals with rod-like structures prepared by a simple precipitation method were investigated. The obtained nanorods had diameters of 10–20 nm and lengths of 50–200 nm observed by transmission electron micrograph (TEM). The photoluminescence spectra revealed that a strong blue emission band centered at 416 nm excited by 385 nm was ascribed to ³P₁–¹S₀ transition in Bi³⁺ ions. The optimum dopant concentration for Bi³⁺ ions was 1.5 mol % , which could be attributed to energy migration to quenching centers.