Assembly of ITO Nanocrystals into Nanotubes Using Polycarbonate Membranes for Dual-Band Electrochromic Modulation

IF 2.9 4区工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY

Korean Journal of Chemical Engineering Pub Date : 2024-07-31 DOI:10.1007/s11814-024-00242-x

Sungbin Kim, Jungchul Noh, Sungyeon Heo

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Abstract

Assembling doped metal oxide nanocrystals (NCs) into one-dimensional (1D) structures can enhance the optical and electrochemical properties of thin films. However, achieving this assembly without damaging the NCs’ properties has been challenging. Here, we present facile method to assemble near-infrared (NIR) absorbing plasmonic indium tin oxide (ITO) NCs into 1D nanotubes (NTs) using track-etched polycarbonate (PC) membranes as templates. By infiltrating freestanding PC membranes with 3% doped ITO NCs, attaching them to an adhesive layer, and then annealing, we produce robust ITO NTs on substrates. Fabricated ITO NTs, featuring mesopores and macropores, exhibit rapid NIR modulation under electrochemical potential while maintaining static visible opacity, making them useful for privacy protection and thermal management. Incorporating NbO_x into these ITO NT films demonstrates rapid switching and electrochemically stable visible and NIR dual-band electrochromic modulation, highlighting the significance of structuring NCs.

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使用聚碳酸酯膜将 ITO 纳米晶体组装到纳米管中以实现双波段电致变色调制

将掺杂的金属氧化物纳米晶体（NCs）组装成一维（1D）结构可以增强薄膜的光学和电化学性能。然而，要在不损害 NC 特性的情况下实现这种组装一直是个挑战。在此，我们提出了一种简便的方法，以跟踪蚀刻的聚碳酸酯（PC）膜为模板，将吸收近红外（NIR）等离子体的氧化铟锡（ITO）NC组装成一维纳米管（NT）。通过将独立的 PC 膜渗入 3% 掺杂的 ITO NC，将其附着在粘合剂层上，然后进行退火处理，我们在基底上制作出了坚固的 ITO NT。制备的 ITO NT 具有中孔和大孔，在电化学电位下表现出快速的近红外调制，同时保持静态可见光不透明性，因此可用于隐私保护和热管理。在这些 ITO NT 薄膜中加入 NbOx，可实现快速切换和电化学稳定的可见光和近红外双波段电致变色调制，凸显了构建 NC 的重要性。

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来源期刊

Korean Journal of Chemical Engineering 工程技术-工程：化工

CiteScore

4.60

自引率

11.10%

发文量

310

审稿时长

4.7 months

期刊介绍： The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.