Binary Chromophore Systems in Nonlinear Optical Dendrimers and Polymers for Large Electrooptic Activities
Binary Chromophore Systems in Nonlinear Optical Dendrimers and Polymers for Large Electrooptic Activities
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DOI：
10.1021/jp712037j
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发表时间：
2008-04
影响因子：
3.7
通讯作者：
Tae‐Dong Kim;Jingdong Luo;Yen‐Ju Cheng;Z. Shi;S. Hau;Sei-Hum Jang;Xing‐Hua Zhou;Yanqing Tian;Brent M. Polishak;Su Huang;Hong Ma;L. Dalton;A. Jen
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文献类型：
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作者：
Tae‐Dong Kim;Jingdong Luo;Yen‐Ju Cheng;Z. Shi;S. Hau;Sei-Hum Jang;Xing‐Hua Zhou;Yanqing Tian;Brent M. Polishak;Su Huang;Hong Ma;L. Dalton;A. Jen
分子结构控制和固态工程的最新发展导致了有机和聚合物非线性光学材料中异常大的电光（EO）活性。新一代的NLO枝状大分子已经被开发出来，以产生明确的纳米物体，最大限度地减少强分子间静电相互作用，并提高极化效率和稳定性。采用简单可靠的Diels - Alder“点击”反应进行晶格硬化，以改善交联EO聚合物的物理性能。“点击”化学也为系统地研究EO活性、发色团形状和数量密度之间的关系提供了手段。利用NLO树状大分子或聚合物作为客体发色团的宿主，增加了发色团的浓度，提高了极化效率。多种具有超高r33值（在1310 nm波长处>350 pm/V，是LiNbO3的10倍以上）和…
Recent developments of molecular architectural control and solid-state engineering have led to exceptionally large electro-optic (EO) activities in organic and polymeric nonlinear optical (NLO) materials. A new generation of NLO dendrimers has been developed to generate well-defined nano-objects, minimize strong intermolecular electrostatic interactions, and improve poling efficiency and stability. A facile and reliable Diels−Alder “click” reaction was applied for lattice hardening to improve physical properties of cross-linkable EO polymers. The “click” chemistry also provides means to study the relationship between EO activity, chromophore shape, and number density of the chromophore, systematically. The NLO dendrimers or polymers were used as hosts for guest chromophores to increase chromophore concentration and improve poling efficiency. A variety of nanostructured organic and polymeric materials with ultrahigh r33 values (>350 pm/V at the wavelength of 1310 nm, more than 10 times that of LiNbO3) and ...