Carbonized Polymer Dots: A Brand New Perspective to Recognize Luminescent Carbon-Based Nanomaterials
Carbonized Polymer Dots: A Brand New Perspective to Recognize Luminescent Carbon-Based Nanomaterials
复制标题
碳化聚合物点：识别发光碳基纳米材料的全新视角
DOI：
10.1021/acs.jpclett.9b01384
复制
发表时间：
2019-09-05
影响因子：
5.7
通讯作者：
Yang, Bai
中科院分区：
文献类型：
--
作者：
Tao, Songyuan;Feng, Tanglue;Yang, Bai
碳量子点作为一种新兴的发光纳米材料，具有优异而复杂的性质，引起了人们的广泛关注和诸多争议。在这一观点中，我们提出了“聚合物点”的概念，并强调了聚合和碳化在CD形成过程中的重要作用。在对石墨烯量子点、碳量子点和石墨烯聚合物量子点进行合理分类的基础上，探讨了量子点的共性，理清了量子点之间的复杂关系。此外，还提供了不同的视角来全面分析CD的本质，包括量子点、分子和聚合物。光致发光机制分为分子态、碳核态、表面/边缘态和交联增强发光效应，以进一步理解复杂的现象。
Carbon dots (CDs), as emerging luminescent nanomaterials, possess excellent but complex properties, bringing about extensive attention and a lot of controversy. In this Perspective, we put forward the concept of "carbonized polymer dots" and emphasize the important role of polymerization and carbonization during the formation of CDs. We explore the common characters and clarify the complicated relationship of CDs, based on the reasonable classification of graphene quantum dots, carbon quantum dots, and carbonized polymer dots. Moreover, different perspectives are provided for comprehensive analysis about the essence of CDs, including quantum dots, molecules, and polymers. The photoluminescence mechanism has been classified into molecule state, carbon core state, surface/edge state, and cross-link enhanced emission effect for further understanding of complicated phenomena.