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首页> 外文期刊>Advanced Functional Materials >Synthesis, Characterization, Two-Photon Absorption, and Optical Limiting Properties of Ladder-Type Oligo-p-phenylene-Cored Chromophores
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Synthesis, Characterization, Two-Photon Absorption, and Optical Limiting Properties of Ladder-Type Oligo-p-phenylene-Cored Chromophores

机译：梯型低聚对苯撑的发色团的合成，表征，双光子吸收和光限幅性质

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摘要

This paper reports on the two-photon absorption (TPA) and related up-converted emission properties of a novel series of chromophores containing ladder-type oligo-p-phenylenes with various π-conjugation lengths. The design and synthesis of these ladder-type two-photon chromophores are first discussed. An increase in the π-conjugated length of the ladder-type oligo-p-phenylene for these chromophores leads to an increase in TPA cross-section together with an increased fluorescence quantum yield. These chromophores exhibit high fluorescence quantum yields because of the rigid planar structure of the ladder-type oligomers. The chromophore with an enhanced TPA cross-section together with an increased fluorescence quantum yield would provide significant benefits for two-photon excited fluorescence based applications. An improved optical limiting behavior was also demonstrated using the ladder-type pentaphenylene cored chromophore.
机译：本文报道了一系列新的发色团的双光子吸收（TPA）和相关的上转换发射特性，这些发色团包含具有各种π共轭长度的梯型低聚对亚苯基。首先讨论了这些梯型双光子发色团的设计和合成。这些生色团的梯型寡聚对亚苯基的π共轭长度的增加导致TPA横截面的增加以及荧光量子产率的增加。由于梯型低聚物的刚性平面结构，这些生色团表现出高的荧光量子产率。具有增强的TPA横截面的发色团以及增加的荧光量子产率将为基于双光子激发荧光的应用提供显着的好处。使用梯型五亚苯基有芯生色团也证明了改进的光学限幅行为。

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