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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Photophysical and Nonlinear Optical Properties of [60]Fullerene Derivatives
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Photophysical and Nonlinear Optical Properties of [60]Fullerene Derivatives

机译：[60]富勒烯衍生物的光物理和非线性光学性质

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摘要

A systematic spectroscopic study of a series of C_(60) derivatives with different cage functionalizations is reported. The absorption spectra and absorptivities of the derivatives in solution were measured and compared. By recording the fluorescence spectra using a near-infrared-sensitive emission spectrometer (extending to 1200 nm), fluorescence quantum yields of the derivatives were determined quantitatively. Fluorescence lifetimes of the derivatives were obtained using the time-correlated single photon counting technique. The results show that both fluorescence quantum yields and lifetimes are rather similar for the different classes of C_(60) derivatives. The nonlinear absorptive properties of the derivatives were evaluated by optical limiting measurements in solution and in polymer film using the second harmonic of a Q-switched Nd: Yag laser at 532 nm. Effects of different fullerene cage functionalizations on the photophysical properties and optical limiting responses of the C_(60) derivatives are discussed.
机译：报道了一系列具有不同笼功能的C_（60）衍生物的系统光谱研究。测量并比较了溶液中衍生物的吸收光谱和吸收率。通过使用近红外敏感发射光谱仪（延伸至1200 nm）记录荧光光谱，可定量确定衍生物的荧光量子产率。使用时间相关的单光子计数技术可获得衍生物的荧光寿命。结果表明，对于不同类别的C_（60）衍生物，荧光量子产率和寿命都非常相似。通过在532 nm处使用Q开关Nd：Yag激光器的二次谐波，通过溶液和聚合物薄膜中的光学极限测量，评估了衍生物的非线性吸收性能。讨论了不同的富勒烯笼功能化对C_（60）衍生物的光物理性质和光学极限响应的影响。

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