锰掺杂锌铝酸盐纳米颗粒：水热合成、表征及光致发光性质

Mn-doped zinc aluminate nanoparticles: hydrothermal synthesis, characterization, and photoluminescence properties.

作者信息

Mu Li, Wan Junxi, Wang Zhenghua, Gao Yongqian, Qian Yitai

机构信息

Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, P R China.

出版信息

J Nanosci Nanotechnol. 2006 Mar;6(3):863-7. doi: 10.1166/jnn.2006.107.

DOI:10.1166/jnn.2006.107

PMID:16573151

Abstract

A two-step synthesis method was developed to fabricate Mn-doped zinc aluminate (ZnAl2O4) nanoparticles, including the first step of ageing, and the second step of crystallization. The effects of preparation conditions, such as ageing temperature, crystallization time, and the pH on the Mn-doped ZnAl2O4 nanoparticles were systematically investigated. The photoluminescence (PL) properties of green phosphor Mn-doped ZnAl2O4 nanoparticles were also discussed. Compared with the bulk sample, the PL spectrum of Mn-doped ZnAl2O4 nanoparticles has distinct blue shift. This procedure provides a facile way for the synthesis of well-crystallized ZnAl2O4:Mn at low temperature.

摘要

开发了一种两步合成方法来制备锰掺杂的锌铝酸盐（ZnAl2O4）纳米颗粒，包括老化的第一步和结晶的第二步。系统研究了老化温度、结晶时间和pH值等制备条件对锰掺杂ZnAl2O4纳米颗粒的影响。还讨论了绿色荧光粉锰掺杂ZnAl2O4纳米颗粒的光致发光（PL）特性。与块状样品相比，锰掺杂ZnAl2O4纳米颗粒的PL光谱有明显的蓝移。该方法为在低温下合成结晶良好的ZnAl2O4:Mn提供了一种简便的途径。