Haohao Sun , Wenxuan Wang , Yuli Xiong , Zelang Jian , Wen Chen
{"title":"Cation pre-inserted vanadium oxide nanobelts as multicolor electrochromic materials for adaptive camouflage","authors":"Haohao Sun , Wenxuan Wang , Yuli Xiong , Zelang Jian , Wen Chen","doi":"10.1016/j.solmat.2024.113207","DOIUrl":null,"url":null,"abstract":"<div><div>V<sub>2</sub>O<sub>5</sub> is a promising electrochromic material for adaptive camouflage or electronic display. However, it is still challenging to enable fast response time, multicolor change and good cyclic stability. In this paper, we successfully synthesized different cation (NH<sub>4</sub><sup>+</sup>, K<sup>+</sup> and Na<sup>+</sup>) pre-inserted vanadium oxide nanobelt films (NVO, KVO and NaVO) by stirring impregnation method. All nanobelts are composed of V<sub>3</sub>O<sub>8</sub> layers with hydrated cations acting as pillars in the interlayer, exhibiting excellent electrochromic properties and remarkable multicolor changes. Among them, the NVO nanobelt films have the highest transmittance modulation (ΔT = 54 % at 510 nm and ΔT = 56 % at 950 nm), fastest response time (4.4 s for coloration time, 5.5 s for bleaching time at 422 nm and 6.8 s for coloration time and 7.7 s for bleaching time at 950 nm) and best stability (3000 cycles). Impressively, the NVO film is highly reversible between five colors: orange-red, orange, yellow, green and blue-grey, showing great breakthrough in adaptive camouflage application.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"279 ","pages":"Article 113207"},"PeriodicalIF":6.3000,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solar Energy Materials and Solar Cells","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0927024824005191","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
V2O5 is a promising electrochromic material for adaptive camouflage or electronic display. However, it is still challenging to enable fast response time, multicolor change and good cyclic stability. In this paper, we successfully synthesized different cation (NH4+, K+ and Na+) pre-inserted vanadium oxide nanobelt films (NVO, KVO and NaVO) by stirring impregnation method. All nanobelts are composed of V3O8 layers with hydrated cations acting as pillars in the interlayer, exhibiting excellent electrochromic properties and remarkable multicolor changes. Among them, the NVO nanobelt films have the highest transmittance modulation (ΔT = 54 % at 510 nm and ΔT = 56 % at 950 nm), fastest response time (4.4 s for coloration time, 5.5 s for bleaching time at 422 nm and 6.8 s for coloration time and 7.7 s for bleaching time at 950 nm) and best stability (3000 cycles). Impressively, the NVO film is highly reversible between five colors: orange-red, orange, yellow, green and blue-grey, showing great breakthrough in adaptive camouflage application.
期刊介绍:
Solar Energy Materials & Solar Cells is intended as a vehicle for the dissemination of research results on materials science and technology related to photovoltaic, photothermal and photoelectrochemical solar energy conversion. Materials science is taken in the broadest possible sense and encompasses physics, chemistry, optics, materials fabrication and analysis for all types of materials.