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- Title
Visible light electrochromism based on reversible dissolution/deposition of MnO<sub>2</sub>.
- Authors
Liu, Xuan; Wang, Hanbing; Zhong, Junsen; Li, Menghan; Zhang, Rui; You, Dongjiang; Du, Lingyu; Gao, Yanfeng; Kang, Litao
- Abstract
Electrochromic (EC) windows based on reversible metal electro-deposition/dissolution (RME) are exciting alternatives to static lighting control using blinds and shades. However, the difficulty of reversibly and uniformly electrodepositing large-area metal layers seriously hinders the development of RME-type EC windows. In this paper, we develop a novel EC system based on reversible oxide electro-deposition/dissolution (ROE) of MnO2, achieving a profound and bistable color change between rust brown and completely transparent. This ROE-MnO2 system exhibits a significantly high optical modulation amplitude (ΔT) without any deterioration within 1000 switching cycles (ΔT550nm actually increases from 44.8 % up to 46.9 % after the cycling test), which is almost double compared to the traditional cation-insertion/extraction triggered MnO2 (RCI-MnO2) EC system. This work may inspire the exploration of novel ROE-type EC systems.
- Subjects
VISIBLE spectra; ELECTROCHROMIC effect; OPTICAL modulation; AMPLITUDE modulation; DAYLIGHT
- Publication
Nanophotonics (21928606), 2024, Vol 13, Issue 5, p679
- ISSN
2192-8606
- Publication type
Article
- DOI
10.1515/nanoph-2023-0573