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- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received July 11, 2024
Accepted July 23, 2024
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Assembly of ITO Nanocrystals into Nanotubes Using Polycarbonate Membranes for Dual-Band Electrochromic Modulation
Abstract
Assembling doped metal oxide nanocrystals (NCs) into one-dimensional (1D) structures can enhance the optical and electrochemical
properties of thin fi lms. 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 infi ltrating 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 fi lms demonstrates rapid switching and electrochemically stable visible and NIR
dual-band electrochromic modulation, highlighting the signifi cance of structuring NCs.
