Optical studies of random disorder of colloidal photonic crystals and its evolution in evaporation induced self-assembly
文献类型：期刊论文
| 作者 | Wang, JZ ; Yang, L ; Lin, DF ; Luo, YH ; Li, DM ; Meng, QB |
| 刊名 | JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2012 |
| 卷号 | 137期号:23 |
| 关键词 | SCALAR-WAVE APPROXIMATION TRANSMISSION SPECTRA FABRICATION DEFECTS DIFFRACTION LIGHT CRYSTALLIZATION LOCALIZATION DEPOSITION THICKNESS |
| ISSN号 | 0021-9606 |
| 通讯作者 | Wang, JZ (reprint author), Chinese Acad Sci, Key Lab Renewable Energy, Beijing 100190, Peoples R China. |
| 中文摘要 | Self-assembled photonic structures have been under theoretical and experimental study for decades, whereas previous theories on optical properties were mainly concerned with perfect structure or some certain limited kinds of disordered photonic crystals (PCs), making them unsuitable for characterizing the real self-assembled PCs. In order to improve our understanding of the mechanism of self-assembly and provide more crucial clues to further grow perfect crystals, we extended previous widely used scalar wave approximation (SWA), making it be able to characterize long-range disorder (beta) and short-range disorder (alpha) in PCs synthetically in a simple and effective way. Excellent agreement with in situ observed reflectance of evaporation induced self-assembled colloidal photonic crystals (CPCs) was obtained, demonstrating that the introduction of the parameters alpha and beta in SWA can successfully characterize the disorder in self-assembled CPCs. Furthermore, extended SWA was further used to study the disorder formation in self-assembly, and it was found that during growing stage both beta and alpha drop down, whereas in drying stage beta stays nearly unchanged while alpha increases significantly. It turned out that the growing stage of self-assembly is a stage when the structure transforms from disordered to ordered one, and growth induced disorder mainly arises in drying stage. The results obtained provide an insight into the growth mechanisms of self-assembly and theoretical basis for characterizing optical properties of disordered PCs. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4772095] |
| 收录类别 | SCI |
| 资助信息 | National Key Basic Research Program (973 project) [2012CB932903]; National Natural Science Foundation of China (NNSFC) [20725311, 51072221, 21173260]; Knowledge Innovation Program of the Chinese Academy of Sciences (CAS) [KJCX2-YW-W27] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50362]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang, JZ,Yang, L,Lin, DF,et al. Optical studies of random disorder of colloidal photonic crystals and its evolution in evaporation induced self-assembly[J]. JOURNAL OF CHEMICAL PHYSICS,2012,137(23). |
| APA | Wang, JZ,Yang, L,Lin, DF,Luo, YH,Li, DM,&Meng, QB.(2012).Optical studies of random disorder of colloidal photonic crystals and its evolution in evaporation induced self-assembly.JOURNAL OF CHEMICAL PHYSICS,137(23). |
| MLA | Wang, JZ,et al."Optical studies of random disorder of colloidal photonic crystals and its evolution in evaporation induced self-assembly".JOURNAL OF CHEMICAL PHYSICS 137.23(2012). |
入库方式： OAI收割
来源：物理研究所
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