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Colors of Single‐Wall Carbon Nanotubes
Advanced Materials ( IF 29.4 ) Pub Date : 2020-12-14 , DOI: 10.1002/adma.202006395
Nan Wei 1 , Ying Tian 2 , Yongping Liao 1 , Natsumi Komatsu 3 , Weilu Gao 3 , Alina Lyuleeva‐Husemann 3 , Qiang Zhang 1 , Aqeel Hussain 1 , Er‐Xiong Ding 1 , Fengrui Yao 4 , Janne Halme 1 , Kaihui Liu 4 , Junichiro Kono 3, 5, 6 , Hua Jiang 1 , Esko I. Kauppinen 1
Affiliation  

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.

中文翻译:

单壁碳纳米管的颜色

尽管单壁碳纳米管(SWCNT)悬浮时显示各种颜色,但直接合成的SWCNT膜通常显示为黑色。最近,开发了一种独特的一步法直接制造绿色和棕色薄膜。然而,如此显着的进步提出了几个新问题。SWCNT的着色机理,可能实现的颜色以及颜色可控性尚不清楚。在此,报道了一种定量模型,该模型可以预测SWCNT膜的特定颜色并明确识别着色机理。使用此模型,可以计算出466种不同的SWCNT种类的颜色,从而揭示了可能实现的SWCNT种类繁多的颜色。计算出的颜色与现有的实验数据非常吻合。此外,该理论预测了许多鲜艳的SWCNT膜的存在,这在实验上是可以预期的。这项研究表明,SWCNT作为纯碳的一种形式,可以显示出各种鲜艳的颜色,这有望补充对碳材料的一般理解。
更新日期:2021-02-22
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