本文提出了一种新的调节人工欧泊晶体的光学带隙的方法.采用改进的溶剂蒸发法将单分散SiO2微球组装成在红外光区具有光子带隙的人工欧泊,采用化学还原法向欧泊中填充高折射率材料Se,改变其光学带隙特性.采用扫描电子显微镜(SEM)、X射线衍射和可见-近红外光谱仪(VIS-NIR)等对Se-SiO2三维光子晶体的形貌、结构和光学性能进行了观察测试.研究结果表明Se以纳米晶粒的形式均匀地包覆在SiO2微球表面,与相同晶格周期的SiO2光子晶体相比,Se-SiO2光子晶体的带隙发生明显的红移.
参考文献
| [1] | Yablonovitch E .Inhibited Spontaneous Emission in Solid-state Physics and Electronics[J].Physical Review Letters,1987,58:2059-2062. |
| [2] | John S Strong .Localization of Photons in Certain Disordered Dielectric Superlattices[J].Physical Review Letters,1987,58:2486-2489. |
| [3] | Younan Xia;Byron Gates;Yadong Yin et al.Monodispersed Colloidal Spheres:Old Materials with New Applications[J].Advanced Materials,2000,12(10):693-716. |
| [4] | Busch K.;John S. .Photonic band gap formation in certain self-organizing systems[J].Physical review.E.Statistical physics, plasmas, fluids, and related interdisciplinary topics,1998(3 Pt.b):3896-3908. |
| [5] | David J Norris;Yurii A Vlasov .Chemical Approaches to Three-dimensional Semiconductor Photonic Crystals[J].Advanced Materials,2001,13(06):371-376. |
| [6] | Yates HM.;Miguez H.;Blanco A.;Lopez C.;Meseguer F. Vazquez L.;Pemble ME. .Atmospheric pressure MOCVD growth of crystalline InP in opals[J].Journal of Crystal Growth,1998(1/2):9-15. |
| [7] | Yoshio K et al.Deposition of Silver Nanoparticles on Silica Spheres Pretreatment Steps in Electroless Plating[J].CHEMISTRY OF MATERIALS,2001,13:1630-1633. |
| [8] | Stobe W;Fink A .Controlled Growth of Monodisperse Silica Spheres in the Micron Size Range[J].Journal of Colloid and Interface Science,1968,26:62. |
| [9] | 许静,谢凯,龙永福,肖加余.油性介质中组装二氧化硅胶体晶体薄膜[J].硅酸盐学报,2005(11):1348-1351. |
| [10] | Jiang P;Bertone J F;Hwang K S .Single-crystal Colloidal Multilayers of Controlled Thickness[J].CHEMISTRY OF MATERIALS,1999,11:2132-2140. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%