Nonlinear optical properties of X-type chromophores and their doped films
文献类型：期刊论文
| 作者 | Li, SJ; Yang, Z; Ye, C |
| 刊名 | CHINESE JOURNAL OF POLYMER SCIENCE
 |
| 出版日期 | 2004-09-01 |
| 卷号 | 22期号:5页码:453-457 |
| 关键词 | Nonlinear Optical X-type Chromophore |
| ISSN号 | 0256-7679 |
| 英文摘要 | Two X-type chromophores, 2-[4-(4,5-di(4-nitrophenyl) imidazolyl) phenyl)-4,5-di(4-methoxyphenyl)-imidazole (DNPIPDMOPI), 2-[4-(4,5-di(4-nitrophenyl)-imidazolyl) phenyl]-4,5-di(4-aminophenyl)-imidazole (DNPIPDAPI), were synthesized and characterized. The results show that they possess good nonlinearity, considerable blue-shifted absorption (385 nm and 379 nm in THF) and high decomposition temperature (377degreesC and 405degreesC). These mean that the X-type chromophores possess a rather good nonlinearity-transparency-thermal stability trade-off. The multi-step corona-poling technique at elevated temperature and in-situ SHG measurements were used to obtain and evaluate the poled films of these chromophores doped in PMMA. The largest SHG signals appeared at 110-120degreesC, which are 12.5 pm/V and 16.7 pm/V respectively. The dependence of poling induced orientation stability on temperature was measured by depoling experiments and the results indicate that the poling-induced orientation of the films is stable at about 100 C. Theoretic analyses imply that better orientation stability arises from the X-type structure of chromophore. The X-type chromophore has two crossed intramolecular CT, both beta(xxx) and beta(xyy) can contribute to the second-order susceptibility, and the ratio of the tensorial components (y =beta(xyy)/beta(xxx)) is about 1/3, so the orientation decay of the films induced by rising temperature will provide a certain compensation for the contribution of beta(xyy) of chromophores. |
| 语种 | 英语 |
| WOS记录号 | WOS:000224529000007 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/81901]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ye, C |
| 作者单位 | Chinese Acad Sci, Ctr Mol Sci, Organ Solids Lab, Inst Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, SJ,Yang, Z,Ye, C. Nonlinear optical properties of X-type chromophores and their doped films[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2004,22(5):453-457. |
| APA | Li, SJ,Yang, Z,&Ye, C.(2004).Nonlinear optical properties of X-type chromophores and their doped films.CHINESE JOURNAL OF POLYMER SCIENCE,22(5),453-457. |
| MLA | Li, SJ,et al."Nonlinear optical properties of X-type chromophores and their doped films".CHINESE JOURNAL OF POLYMER SCIENCE 22.5(2004):453-457. |
入库方式： OAI收割
来源：化学研究所
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。