Jana Bikash, Ghosh Arnab, Patra Amitava
Department of Materials Science, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India.
J Phys Chem Lett. 2017 Sep 21;8(18):4608-4620. doi: 10.1021/acs.jpclett.7b01936. Epub 2017 Sep 13.
The design of new generation light-harvesting systems based on conjugated polymer nanoparticles (PNPs) is an emerging field of research to convert solar energy into renewable energy. In this Perspective, we focus on the understanding of the light harvesting processes like exciton dynamics, energy transfer, antenna effect, charge carrier dynamics, and other related processes of conjugated polymer-based functional nanomaterials. Spectroscopic investigations unveil the rotational dynamics of the dye molecules inside of PNPs and exciton dynamics of the self-assembled structures. A detailed understanding of the cascade energy transfer for white light and singlet oxygen generation in multiple fluorophores containing a PNP system by time-resolved spectroscopy is highlighted. Finally, ultrafast spectroscopic investigations provide direct insight into the impacts of electron and hole transfer at the interface in the hybrid materials for photocatalysis and photocurrent generation to construct efficient light-harvesting systems.
基于共轭聚合物纳米粒子（PNP）的新一代光捕获系统的设计是一个将太阳能转化为可再生能源的新兴研究领域。在这篇综述中，我们着重于理解光捕获过程，如激子动力学、能量转移、天线效应、电荷载流子动力学以及共轭聚合物基功能纳米材料的其他相关过程。光谱研究揭示了PNP内部染料分子的旋转动力学以及自组装结构的激子动力学。通过时间分辨光谱对包含PNP系统的多个荧光团中白光和单线态氧产生的级联能量转移进行详细理解得到了强调。最后，超快光谱研究为光催化和光电流产生的混合材料界面处电子和空穴转移的影响提供了直接见解，以构建高效的光捕获系统。
