Colors of Single-Wall Carbon Nanotubes

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2021-02-24
Major/Subject
Mcode
Degree programme
Language
en
Pages
7
Series
Advanced Materials, Volume 33, issue 8
Abstract
Although single-wall carbon nanotubes (SWCNTs) exhibit various colors in suspension, directly synthesized SWCNT films usually appear black. Recently, a unique one-step method for directly fabricating green and brown films has been developed. Such remarkable progress, however, has brought up several new questions. The coloration mechanism, potentially achievable colors, and color controllability of SWCNTs are unknown. Here, a quantitative model is reported that can predict the specific colors of SWCNT films and unambiguously identify the coloration mechanism. Using this model, colors of 466 different SWCNT species are calculated, which reveals a broad spectrum of potentially achievable colors of SWCNTs. The calculated colors are in excellent agreement with existing experimental data. Furthermore, the theory predicts the existence of many brilliantly colored SWCNT films, which are experimentally expected. This study shows that SWCNTs as a form of pure carbon, can display a full spectrum of vivid colors, which is expected to complement the general understanding of carbon materials.
Description
Keywords
carbon nanotube thin films, color range, nanomaterials, pigments, quantitative coloration model
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Citation
Wei , N , Tian , Y , Liao , Y , Komatsu , N , Gao , W , Lyuleeva-Husemann , A , Zhang , Q , Hussain , A , Ding , E X , Yao , F , Halme , J , Liu , K , Kono , J , Jiang , H & Kauppinen , E I 2021 , ' Colors of Single-Wall Carbon Nanotubes ' , Advanced Materials , vol. 33 , no. 8 , 2006395 . https://doi.org/10.1002/adma.202006395