Multicolored structural coloration of carbon nanotube fibers

Abstract

Carbon nanotube fibers (CNTFs) are endowed with excellent mechanical, electrical, and thermal properties and are considered promising candidates in numerous cutting-edge fields. However, the inherent black color of CNTFs hinders their practical application in fields with high aesthetic requirements such as wearable devices and smart textiles. Due to the smooth surface and chemical inertness, CNTFs are hard to be dyed by conventional chemical dyes or colorful inks. Herein, we realize a structural coloration of CNTFs by coating them with two metal oxide layers via atomic layer deposition. The three elements of color, that is, hue, saturation, and brightness, can be controlled by adjusting the types and thickness of each oxide layer. Colorful CNTFs with wide color gamut and high saturation are achieved through different combinations. A film interference model is also established to reveal the mechanism of the structural coloration, which is a comprehensive result of thin-film interference and surface roughness briefly. The calculated reflectance well fits the measured results by introducing surface roughness parameters. Moreover, the colored CNTFs are not iridescent because of retinal signal delay, which will further expand their applications.

SnS2 nanoparticles embedded in sulfurized polyacrylonitrile composite fibers for high‐performance potassium‐ion batteries

“…Additionally, two scattering peaks near 1340 and 1540 cm −1 can be assigned to the disorder‐induced D‐band and vibrational G‐band of the carbon component, respectively. [ 47–50 ]…”

Enhancing Electroreduction CO2 to Hydrocarbons via Tandem Electrocatalysis by Incorporation Cu NPs in Boron Imidazolate Frameworks

“…Hence, it could result in a more facile charge-transfer to promote the enhancement of activity and selectivity of CO 2 electroreduction. [16]…”

Designing and Engineering Atomically Dispersed Metal Catalysts for CO2 to CO Conversion: From Single to Dual Metal Sites

“…The metal centers include Mn, [80] Fe, [14] Co, [36] Ni, [81] Zn, [82–83] Ga, [84] Pd, [85] In, [86] Bi, [87] and beyond [88] . Besides N, the explored co‐ligands involve B, [89] O, [90] P, [89] S, [76] F, [91] Cl, [92–93] and Br [94] . Adjusting the coordination environment of metals and heteroatom ligands can significantly affect the CO 2 RR performance of the M−N−C catalysts.…”