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The Study on energy transfer and multi-photon absorption of organic and inorganic hybrid materials

有机无机杂化材料的能量传递和多光子吸收研究

基本信息

批准号：
05452109
负责人：
MIYATA Seizo
金额：
$ 3.78万
依托单位：
TOKYO UNIVERSITY OF AGRICULTURE AND TECHNOLOGY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1993
资助国家：
日本
起止时间：
1993 至 1994
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05452109/
关键词：
Fullerene C60 Multi-photon absorption Energy transfer Optical-limiting DFWM Polyarylamine Polyethersulfone

项目摘要

In this research project we study the energy transfer process between the organic and inorganic materials and multi-photon absorption of organometallic compounds. Fluorescence properties of organometallic Langmuir-Blodgett films were investigated using lanthanide ion. LB films of terbium (III) with 2- (4'-dodecylbenzoyl) benzoate and palmitate mixture were prepared on a quartz substrate. The molar fluorescence intensity of Tb (III) LB film was compared with the solutions. Fluorescence increases by 1^4 times by incorporating Tb (III) into sodium 2- (4'dodecylbenzoyl) benzoate in the solution and 10 times by preparing LB films. Fluorescence anisotropy of LB films indicated that the molecules oriented in a certain direction on the substrate.Furthermore the electroluminescence (EL) properties of organometallic compounds were investigated. The thin films of organometallic compounds were prepared on a ITO glass plate. In general those organometallic compounds can not exhibit a highly efficient EL intensity. In order to overcome this problems the novel radiative EL device was developed to excite the organometallic compounds using a needle type electrode. The sample excited radiative DC voltage exhibit a efficient EL light up to 500 Cd/m2. This novel techniques can be applied to any luminescent materials.

本课题主要研究有机-无机材料之间的能量传递过程和有机金属化合物的多光子吸收。研究了镧系金属离子对LB膜荧光特性的影响。在石英衬底上制备了铽（III）与2-（4 ′-十二烷基苯甲酰基）苯甲酸酯和棕榈酸酯混合物的LB膜。Tb（III）LB膜的摩尔荧光强度与溶液进行了比较。当Tb（III）掺入到2-（4 ′-十二烷基苯甲酰基）苯甲酸钠溶液中时，荧光增强了14倍，当Tb（III）掺入到LB膜中时，荧光增强了10倍。LB膜的荧光各向异性表明分子在基底上沿一定方向取向。在ITO玻璃板上制备了有机金属化合物薄膜。一般来说，这些有机金属化合物不能表现出高效的EL强度。为了克服这些问题，开发了新型的辐射EL器件，使用针型电极激发有机金属化合物。样品激发的辐射直流电压表现出高达500 Cd/m2的高效EL光。这种新技术可以应用于任何发光材料。