Optical Properties of Self-Assembled ZnO/SiO2 Photonic Crystals

被引：3
|
作者：
O, Yong-Taeg [1 ]
Shin, Dong-Chan [1 ]
机构：
[1] Chosun Univ, Dept Adv Mat Engn, Kwangju 501759, South Korea
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2008年 / 8卷 / 10期
关键词：
Two-Stage Coating; Phonic Crystals; PL; Self-Assembly; ZnO; Synthetic Opal;
D O I：
10.1166/jnn.2008.1395
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This study examined the optical properties and crystallinity of self-assembled ZnO/SiO2 photonic crystals using silica and ZnO nanopowders. The silica and ZnO nanopowders were fabricated using the well-known Stober process. The photonic crystals were self-assembled using a evaporation method. The process temperature and heat-treatment temperature after evaporation were 80 degrees C and 250 similar to 450 degrees C, respectively. The highest reflectance peak intensity was obtained in the sample heat-treated at 350 degrees C with 0.3 wt% ZnO addition. The ZnO/SiO2 photonic crystals clearly showed better emission properties than the SiO2/ZnO and ZnO structures.
引用
收藏
页码：5590 / 5594
页数：5
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