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首页> 外文期刊>The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical >Photon Upconversion in TTA-Inducing Ionic Liquids: Pinpointing the Role of IL Nanostructured Media Using MD Simulations
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Photon Upconversion in TTA-Inducing Ionic Liquids: Pinpointing the Role of IL Nanostructured Media Using MD Simulations

机译:在TTA诱导离子液体中的光子上转化:使用MD模拟定位IL纳米结构介质的作用

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摘要

The use of task-specific chromophoric ionic liquids as energy transfer media in triplet-triplet annihilation photon upconversion (TTA-UC) processes has produced several examples of systems with signifficantly enhanced performances. In this work, we use molecular dynamics simulations to probe the relation between the nanostructure of chromophoric ionic liquids and their ability to achieve high TTA-UC quantum yields. The existing atomistic and systematic force fields commonly used to model different ionic liquids are extended to include substituted anthracene moieties, thus allowing the modeling of several chromophoric ionic liquids. The simulation results show that the polar network of the ionic liquids can orient the anthracene moieties within the nonpolar domains preventing direct contacts between them but allowing orientations at the optimal distance for triplet energy migration.
机译:使用任务特定的发色离子液体作为在三重胶囊 - 三态湮灭光子上增强(TTA-UC)工艺中的能量转移介质已经产生了具有焦虑增强性能的系统的几个例子。 在这项工作中,我们使用分子动力学模拟来探测发色离子液体纳米结构与其实现高TTA-UC量子产率的能力之间的关系。 常用于模拟不同离子液体的现有原子和系统力场延伸以包括取代的蒽部分,从而允许若干发色离子液体的建模。 仿真结果表明,离子液体的极性网络可以在非极性域内定向蒽部分,防止它们之间的直接触点,但允许在最佳距离处进行三态能量迁移。

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