Carbon nanotubes (CNTs) have found widespread applications in the fields of mechanics, microelectronics, and optoelectronics. However, the attractive applications of CNTs in functional coatings and smart textiles are severely limited by their inherent black appearance. Herein, the rich coloration of CNTs is achieved by depositing tungsten oxide (WO₃) of varying thicknesses onto the surface of CNT films, based on the thin-film interference effects. Additionally, by constructing inverted-type electrochromic devices, we achieved dynamic color modulation of the CNTs. These flexible electrochromic devices exhibit dynamic color modulation, robust mechanical flexibility, and electrochemical stability, demonstrating significant potential for applications in embedded wearable electronics, smart textiles, and functional coatings.

中文翻译：

---

通过薄膜干涉实现碳纳米管柔性多彩电致变色


碳纳米管（CNT）在机械、微电子和光电子领域有着广泛的应用。然而，碳纳米管在功能涂层和智能纺织品中的有吸引力的应用受到其固有的黑色外观的严重限制。在此，基于薄膜干涉效应，通过在碳纳米管薄膜表面沉积不同厚度的氧化钨（WO ₃ ）来实现碳纳米管的丰富着色。此外，通过构建倒置型电致变色器件，我们实现了碳纳米管的动态颜色调制。这些柔性电致变色器件表现出动态颜色调制、强大的机械灵活性和电化学稳定性，在嵌入式可穿戴电子产品、智能纺织品和功能涂层中展现出巨大的应用潜力。