Synchrotron radiation phase-contrast computed tomography study on self-assembly of polystyrene colloidal crystals via solvent evaporation
文献类型：期刊论文
| 作者 | Fu, YA; Xie, HL; Deng, B; Du, GH; Xiao, TQ |
| 刊名 | COLLOID JOURNAL
 |
| 出版日期 | 2015 |
| 卷号 | 77期号:6页码:795—801 |
| 关键词 | OPAL PHOTONIC CRYSTALS QUANTITATIVE-ANALYSIS SPHERES FABRICATION TEMPLATES RETRIEVAL PARTICLES DEFECTS OBJECT ARRAYS |
| ISSN号 | 1061-933X |
| 通讯作者 | Fu, YA (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China. |
| 英文摘要 | The colloidal crystals of polystyrene (PS) spheres were assembled from the emulsion of PS by an in situ solvent evaporation method. The local internal 3D structure of the fabricated colloidal crystals was noninvasively characterized with synchrotron radiation phase-contrast computed tomography. The satisfactory contrast difference was obtained and the shapes of the spheres were clearly reconstructed. Based on the slice images, the two-stage mechanism of crystallization process for in situ evaporation was suggested. In the initial stage, stable nucleation and growth result in formation of an ordered face-centered cubic structure with the sphere volume fraction 70.2%, which is very close to the maximum sphere packing volume fraction 74%. In the second stage, the sphere concentration in suspension decreased too much to support an adequate sphere transfer through the solvent flux to the growth front. The transformation from square to hexagonal lattice did not therefore complete under the same evaporation rate. This incompleteness results in formation of local ordered structure with randomly arranged hexagonal and square packing with a slightly low volume fraction of 68.41%. |
| 语种 | 英语 |
| WOS记录号 | WOS:000365237500015 |
| 公开日期 | 2016-03-08 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/25062]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Fu, YA,Xie, HL,Deng, B,et al. Synchrotron radiation phase-contrast computed tomography study on self-assembly of polystyrene colloidal crystals via solvent evaporation[J]. COLLOID JOURNAL,2015,77(6):795—801. |
| APA | Fu, YA,Xie, HL,Deng, B,Du, GH,&Xiao, TQ.(2015).Synchrotron radiation phase-contrast computed tomography study on self-assembly of polystyrene colloidal crystals via solvent evaporation.COLLOID JOURNAL,77(6),795—801. |
| MLA | Fu, YA,et al."Synchrotron radiation phase-contrast computed tomography study on self-assembly of polystyrene colloidal crystals via solvent evaporation".COLLOID JOURNAL 77.6(2015):795—801. |
入库方式： OAI收割
来源：上海应用物理研究所
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