Cast-and-Use Super Black Coating Based on Polymer-Derived Hierarchical Porous Carbon Spheres
Cast-and-Use Super Black Coating Based on Polymer-Derived Hierarchical Porous Carbon Spheres
复制标题
基于聚合物衍生的多级孔碳球的铸造即用超级黑色涂层
DOI：
10.1021/acsami.9b04779
复制
发表时间：
2019-05-01
影响因子：
9.5
通讯作者：
Xu, Jian
中科院分区：
文献类型：
--
作者：
Guo, Jing;Li, Dongdong;Xu, Jian
具有极低反射率和高入射光吸收率的超黑材料在具有严格光学要求的各种应用中至关重要。然而，现有的超黑材料在实际应用中受到技术复杂性的影响，而其超低反射率的基本物理特性仍然不清楚。本文中，使用聚（偏二氯乙烯-共-氯乙烯）作为前体制备分级多孔碳球。脱氯化氢处理已被证明是非常关键的多孔聚合物球的形态鲁棒性在碳化过程中。由这些碳球的分散体浇铸的涂层表现出约100 nm的半球反射率。
Super black materials with extremely low reflectance and high absorption of incident light are crucial in various applications with strict optical requirements. However, the existing super black materials suffer from technical complexity in practical use whereas the underlying physics of their ultralow reflectance is still unclear. Herein, hierarchical porous carbon spheres are prepared using poly(vinylidene chloride-co-vinyl chloride) as a precursor. Dehydrochlorination treatment has proved to be very crucial for the morphology robustness of the porous polymer spheres during carbonization process. Coatings cast from the dispersion of these carbon spheres exhibit a hemispherical reflectance of