[1]汪静,李康,钱卫平,等.垂直沉积法制备二氧化硅胶体晶体及其表征[J].东南大学学报(自然科学版),2003,33(2):208-210.[doi:10.3969/j.issn.1001-0505.2003.02.023]
 Wang Jing,Li Kang,Qian Weiping,et al.Fabrication and characterization of silica colloidal crystals by vertical deposition method[J].Journal of Southeast University (Natural Science Edition),2003,33(2):208-210.[doi:10.3969/j.issn.1001-0505.2003.02.023]
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垂直沉积法制备二氧化硅胶体晶体及其表征()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
33
期数:
2003年第2期
页码:
208-210
栏目:
数学、物理学、力学
出版日期:
2003-03-20

文章信息/Info

Title:
Fabrication and characterization of silica colloidal crystals by vertical deposition method
作者:
汪静12 李康13 钱卫平1 袁春伟1
1 东南大学分子与生物分子电子学教育部重点实验室,南京 210096; 2 大连水产学院基础部,大连 116023; 3 淮阴师范学院化学系,淮安 223001
Author(s):
Wang Jing12 Li Kang13 Qian Weiping1 Yuan Chunwei1
1 Key Laboratory of Molecular and Bio-molecular Electronics of Ministry of Education, Southeast University, Nanjing 210096, China
2 Faculty of General Studies, Dalian Fisheries University, Dalian 116023, China
3 Ch
关键词:
垂直沉积法 二氧化硅胶体球 胶体晶体 FCC密排结构 光子带隙
Keywords:
vertical deposition method silica colloidal spheres colloidal crystals FCC structure photonic band-gap
分类号:
O484.1
DOI:
10.3969/j.issn.1001-0505.2003.02.023
摘要:
利用垂直沉积法将单分散的二氧化硅胶体微球自组装生长为胶体晶体,并用扫描电子显微镜和紫外-可见光分光光度计对其显微形貌和光学特性进行了表征.结果表明二氧化硅微球有序堆积,自组装成胶体晶体,其结构为FCC密排结构,表面为FCC密排结构的(111)面; 反射光谱还表明,所制备的胶体晶体的光子带隙位于可见光波段.与重力沉淀等其他自组装方法相比,垂直沉积法制备胶体晶体具有能够用胶体微球粒径和胶体溶液浓度精确控制样品厚度等优点.
Abstract:
A self-assembly technique which relies on capillary forces to organize silica colloidal was used to fabricate colloidal crystal multilayers. Crystalline quality and thickness of the film were determined using scanning electron microscopy(SEM)and the optical properties of the film were evaluated using UV-visible spectrometer. The results show that the colloidal crystals are in FCC structure and the(111)planes of the FCC lattice are parallel to the solid substrates. The reflect spectra in the visible regions show distinct peaks due to the existence of photonic band-gap. The results suggest that the colloidal crystal multilayers fabricated by the vertical deposition method have the advantage that the thickness of the resulting sample can be precisely dictated through control of sphere size and concentration in solution.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 汪静(1966—),女,博士生,副教授; 袁春伟(联系人),男,博士,教授,博士生导师,cwy@seu.edu.cn.
更新日期/Last Update: 2003-03-20