Synthesis and Optical Characterization of SrHfO3 Nano-Crystals Synthesized by Using the Combustion Method

被引：6
|
作者：
Kim, D. H. [1 ]
Lee, D. J. [1 ]
Park, J. W. [1 ]
Lee, Y. S. [1 ]
机构：
[1] Soongsil Univ, Dept Phys, Seoul 157743, South Korea
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2013年 / 13卷 / 03期
基金：
新加坡国家研究基金会;
关键词：
SrHfO3; Nano-Crystals; Combustion Method; Grain Size; Blue Emission; ROOM-TEMPERATURE; SRZRO3; EMISSION;
D O I：
10.1166/jnn.2013.6988
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We synthesized SrHfO3 nano-crystals (NCs) by using the combustion method, and investigated their emission property using 325 nm photo-excitation. The as-grown SrHfO3 NCs were annealed at different temperatures from 700 degrees C to 1450 degrees C. The X-ray diffraction analysis revealed that all the samples are of a single phase, and the grain size increases with the higher temperature annealing. Interestingly, it is found that in contrast to the bulk case, the SrHfO3 NCs show a strong blue emission even at room temperature. The strong dependence of the visible emission on annealing temperatures and grain sizes indicated that the effects of grain size and oxygen vacancies may play a role in forming the observed visible emission band for SrHfO3 NCs. We also compare our findings with the case of similar material, SrZrO3.
引用
收藏
页码：1845 / 1847
页数：3
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