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首页> 外文期刊>New Journal of Chemistry >Studies of Langmuir and Langmuir-Blodgett films of NLO-active amphiphilic 1,3-indanedione derivatives
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Studies of Langmuir and Langmuir-Blodgett films of NLO-active amphiphilic 1,3-indanedione derivatives

机译：具有NLO活性的两亲1,3-茚满二酮衍生物的Langmuir和Langmuir-Blodgett膜的研究

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摘要

We studied Langmuir and Langmuir - Blodgett (LB) films of several strong nonlinear optical (NLO) active amphiphilic derivatives of 1,3-indanedione-5,6-dicarboxylic acid. The surface pressure - area ( p - A) isotherms at the air - water interface were investigated at different temperatures and pH values. Non-centrosymmetric Z-type LB films were deposited. UV - visible spectra indicated a uniform film transfer. The orientation of the molecular transition moments was calculated from the polarized UV - visible spectra. Packing within the LB films was observed by UV - visible absorption and fluorescence spectroscopy. The morphology of the LB films was examined by AFM and compared to ellipsometric measurements, and the nature of the films was studied by contact angle measurements. Significant second harmonic generation ( SHG) by the LB films was observed. Alternate layer Y-type LB films of two different dyes were fabricated to achieve enhanced stability and SHG.
机译：我们研究了1,3-茚满二酮-5,6-二羧酸的几种强非线性光学（NLO）活性两亲衍生物的Langmuir和Langmuir-Blodgett（LB）膜。研究了在不同温度和pH值下空气-水界面的表面压力-面积（p-A）等温线。沉积非中心对称的Z型LB膜。 UV-可见光谱表明均匀的膜转移。由极化的UV-可见光谱计算分子跃迁矩的取向。通过UV-可见光吸收和荧光光谱观察到LB膜内的堆积。 LB膜的形貌通过原子力显微镜（AFM）进行了检查，并与椭偏测量法进行了比较，并通过接触角测量研究了膜的性质。观察到LB膜产生了显着的二次谐波（SHG）。制作了两种不同染料的交替层Y型LB膜，以实现更高的稳定性和SHG。

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