Colloid chemical reaction route to the preparation of nearly monodispersed perylene nanoparticles: size-tunable synthesis and three-dimensional self-organization
文献类型：期刊论文
| 作者 | Kang, Longtian; Wang, Zhechen; Cao, Zongwei; Ma, Ying; Fu, Hongbing; Yao, Jiannian |
| 刊名 | Journal of the american chemical society
 |
| 出版日期 | 2007-06-13 |
| 卷号 | 129期号:23页码:7305-7312 |
| ISSN号 | 0002-7863 |
| DOI | 10.1021/ja068710d |
| 通讯作者 | Fu, hongbing(hongbin.fu@iccas.ac.cn) |
| 英文摘要 | By employing a colloid chemical reaction method we demonstrate the preparation of organic nanoparticles composed of perylene molecules (penps) based on the reduction of perylene perchlorate by br- anions in the presence of cetyl trimethyl ammonium bromide (cta(+)br(-)) in acetonitrile. a discrete nucleation event, followed by a slower controlled growth on the existing particles, is identified during formation of penps. by changing the growth parameters, such as the monomer concentration and the method of injection, quasi-spherical penps with controllable sizes from 25 to 90 nm could be obtained. the homogeneous solution phase of this method makes it capable of large-scale synthesis of penps with a size distribution (<10%) that is improved by formation of a protective layer of cta(+) around the penps. the three-dimensional, hierarchical self-organization of 25-nm penps building blocks is observed to form nanobelts and square nanorods, possibly templated by the cta(+) lamellar micelle structures in acetonitrile. spectroscopic results reveal two kinds of trends in the development of the optical properties of perylene as they evolve from the molecular to the bulk phase in the nanometer range. the so-called size dependence is evidenced by a switch from y-type to e-type excimers as the size of the penps increased from 25 to 90 nm. as the 25-nm penps organize into nanobelts or square nanorods the oscillator strength of the y-type excimers is relatively enhanced. that is, collective phenomena develop as the proximal particles interact in the glassy solids. our very recent results indicate that this colloid chemical reaction method can also be applied to other organic compounds. |
| WOS关键词 | LUMINESCENT ORGANIC MICROCRYSTALS ; DENDRIMER-TUNED FORMATION ; CETYLTRIMETHYLAMMONIUM BROMIDE ; OPTICAL-PROPERTIES ; ASPECT RATIO ; ENHANCED FLUORESCENCE ; CONJUGATED POLYMERS ; MAGNETIC-FIELD ; GOLD NANORODS ; NANOCRYSTALS |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000247072300038 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2380897 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Fu, Hongbing |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kang, Longtian,Wang, Zhechen,Cao, Zongwei,et al. Colloid chemical reaction route to the preparation of nearly monodispersed perylene nanoparticles: size-tunable synthesis and three-dimensional self-organization[J]. Journal of the american chemical society,2007,129(23):7305-7312. |
| APA | Kang, Longtian,Wang, Zhechen,Cao, Zongwei,Ma, Ying,Fu, Hongbing,&Yao, Jiannian.(2007).Colloid chemical reaction route to the preparation of nearly monodispersed perylene nanoparticles: size-tunable synthesis and three-dimensional self-organization.Journal of the american chemical society,129(23),7305-7312. |
| MLA | Kang, Longtian,et al."Colloid chemical reaction route to the preparation of nearly monodispersed perylene nanoparticles: size-tunable synthesis and three-dimensional self-organization".Journal of the american chemical society 129.23(2007):7305-7312. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。