Vacuum-deposited submonolayer thin films of a three-ring bent-core compound
文献类型：期刊论文
| 作者 | Tang YH ; Wang Y ; Wang G ; Wang HB ; Wang LX ; Yan DH |
| 刊名 | journal of physical chemistry b
 |
| 出版日期 | 2004 |
| 卷号 | 108期号:34页码:12921-12926 |
| 关键词 | SMECTIC LIQUID-CRYSTALS REACTION-LIMITED AGGREGATION ACHIRAL MOLECULES 2ND-HARMONIC GENERATION NUCLEATION KINETICS EPITAXIAL-GROWTH PHASE SURFACES LUMINESCENCE DYNAMICS |
| ISSN号 | 1520-6106 |
| 通讯作者 | yan dh |
| 中文摘要 | submonolayer thin films of a three-ring bent-core (that is, banana-shaped) compound, m-bis(4-n-octyloxystyryl)benzene (m-osb), were prepared by the vacuum-deposition method, and their morphologies, structures, and phase behavior were investigated by atomic force microscopy (afm) and transmission electron microscopy (tem). the films have island shapes ranging from compact elliptic or circular patterns at low temperatures (below 40 degreesc) to branched patterns at high temperatures (above 60 degreesc). this shape evolution is contrary to the prediction based on the traditional diffusion-limited aggregation (dla) theory. afm observations revealed that two different mechanisms governed the film growth, in which the compact islands were formed via a dewetting-like behavior, while the branched islands diffusion-mediated. it is suggested m-osb forms a two-dimensional, liquid crystal at the low-temperature substrate that is responsible for the unusual formation of compact islands. all of the monolayer islands are unstable and apt to transform to slender bilayer crystals at room temperature. this phase transition results from the peculiar molecular shape and packing of the bent-core molecules and is interpreted as escaping from macroscopic net polarization by the formation of an antiferroelectric alignment. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000223430800045 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://202.98.16.49/handle/322003/15475]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Tang YH,Wang Y,Wang G,et al. Vacuum-deposited submonolayer thin films of a three-ring bent-core compound[J]. journal of physical chemistry b,2004,108(34):12921-12926. |
| APA | Tang YH,Wang Y,Wang G,Wang HB,Wang LX,&Yan DH.(2004).Vacuum-deposited submonolayer thin films of a three-ring bent-core compound.journal of physical chemistry b,108(34),12921-12926. |
| MLA | Tang YH,et al."Vacuum-deposited submonolayer thin films of a three-ring bent-core compound".journal of physical chemistry b 108.34(2004):12921-12926. |
入库方式： OAI收割
来源：长春应用化学研究所
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