Strongly enhanced infrared emission of a black coating doped with multiwall carbon nanotubes

被引：10

作者：

Zhang, Haoyang ^{[1
,2
]}

Hao, Xiaopeng ^{[1
]}

Su, Weitao ^{[2
,3
]}

Jin, Yuanhao ^{[4
,5
,6
]}

Song, Jian ^{[1
]}

Niu, Zhitian ^{[1
]}

Lu, Hongwei ^{[3
]}

Wang, Xueshen ^{[1
]}

Li, Qunqing ^{[4
,5
]}

机构：

[1] Natl Inst Metrol, Remote Sensing Calibrat Lab, Beijing 100029, Peoples R China

[2] Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Peoples R China

[3] Hangzhou Dianzi Univ, Sch Sci, Hangzhou 310018, Peoples R China

[4] Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Dept Phys, Beijing 100084, Peoples R China

[5] Tsinghua Univ, Tsinghua Foxconn Nanotechnol Res Ctr, Beijing 100084, Peoples R China

[6] Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China

来源：

INFRARED PHYSICS & TECHNOLOGY | 2021年 / 113卷

基金：

中国国家自然科学基金;

关键词：

MWCNT; High infrared emissivity coating; Black paint;

D O I：

10.1016/j.infrared.2021.103651

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Advanced infrared emission coating materials with emissivities close to one unit are critical for producing high-performance standard black bodies. Herein, by utilizing a simple spray-coating method, we prepared a novel carbon-based coating with an organic binder by using VC 811-21 as the main phase and multiwall carbon nanotubes (MWCNTs) as the dopant to fulfil this demand. The addition of an optimal concentration of MWCNTs results in a smooth surface structure with a low roughness that is free of large granularities. The infrared emissivity in the wavelength region of 6.5-16 mu m presents a close dependence on the increasing concentration of MWCNTs. With 1 parts per thousand MWCNTs, the highest infrared emissivity in vacuum (0.985) is obtained with a spectral nonuniformity of 0.002, and this result is higher than the reported values of VC 811-21 and other well-known infrared coating materials. Such high infrared emissivity will greatly benefit the design of novel black bodies for next-generation infrared remote sensing.

引用

页数：7