文献类型：期刊文献

英文题名：Construction of Carbon Nanotube Sponges to Have High Optical Antireflection and Mechanical Stability

作者：Zhan, Hang[1];Shi, Qiang Qiang[1];Wu, Guang[1];Wang, Jian Nong[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200030, Peoples R China

年份：2020

卷号：12

期号：14

起止页码：16762

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20201508392409);WOS:【SCI-EXPANDED(收录号:WOS:000526583500083)】；

基金：This research was supported by the National Key R&D Program of China (2018YFA0208404), National Natural Science Foundation of China (U1362104), and Innovation Program of Shanghai Municipal Education Commission.

语种：英文

外文关键词：antireflective material; mechanical stability; carbon nanotube; super black material; porous structure

摘要：Antireflective (AR) materials are required to possess high optical antireflection and mechanical stability for their practical applications in optical, opto-electronic, and electron-optical devices. However, the AR materials developed so far can hardly meet these requirements. Here, we report the construction of a highly porous and sponge-like material based on carbon nanotubes (CNTs). This is achieved by continuous winding of a hollow cylindrical CNT assembly and subsequent modification with amorphous carbon (AC). The resultant material is shown to have very low optical reflectance at the visible and infra-red wavelengths over a wide range of incident angles and undergoes little degradation even after long-lasting compressive cycling between 0 and 90% strains or a large change of environmental temperature from -196 to 300 degrees C. Besides, the AR sponge material can recover fast after bending, stretching, and compression from high elastic strains. Such an excellent combination of broadband and omnidirectional antireflection, mechanical stability, and elastic flexibility results from the strong light absorption by the highly porous CNT structures strengthened by AC deposition on CNT surfaces and junctions, and the new AR material has potential applications in the renewable energy and military fields.