气候变化领域集成服务门户(CCPortal): Al3+ intercalation/de-intercalation-enabled dual-band electrochromic smart windows with a high optical modulation, quick response and long cycle life

CCPortal

DOI	10.1039/c8ee01718b
	Al3+ intercalation/de-intercalation-enabled dual-band electrochromic smart windows with a high optical modulation, quick response and long cycle life
	Zhang S.; Cao S.; Zhang T.; Fisher A.; Lee J.Y.
发表日期	2018
ISSN	17545692
起始页码	2884
结束页码	2892
卷号	11 期号:10
英文摘要	Dual-band electrochromic smart windows with independent control of the transmittance of near-infrared (NIR) and visible (VIS) light can contribute significantly to the reduction of building energy consumption. Cost and inadequate electrochromic performance are the current technical challenges. We present here a dual-band electrochromic smart window design based on the intercalation/de-intercalation of Al3+ cations to replace the common use of monovalent cations in electrochromic applications. The Al3+ intercalation/de-intercalation-enabled electrochromic smart window delivers not only efficient and independent control of NIR and VIS light transmittance, but also impressive electrochromic performance-a high optical modulation of the full solar spectrum (93.2%, 91.7%, 88.5%, and 86.8% at 633, 800, 1200, and 1600 nm, respectively), high coloration efficiencies (254 and 121 cm2 C-1 at 1200 and 633 nm, respectively), fast switching times (8/5 s and 16/13 s at 1200 and 633 nm, respectively, for coloration/bleaching), and high bistability and cyclability (a 5.5% capacity loss after 2000 cycles). The good electrochromic performance can be attributed to the effective diffusion of Al3+ in the electrochromic material (as good as that of Li+); and a shallow intercalation/de-intercalation depth enabled by the ability of Al3+ to support three-electron redox reactions. The performance of Al3+ intercalation/de-intercalation-enabled dual-band electrochromism was also verified in laboratory prototype devices to confirm its suitability for dual-band smart windows. © 2018 The Royal Society of Chemistry.
英文关键词	Energy utilization; Infrared devices; Light modulation; Optical signal processing; Positive ions; Redox reactions; Building energy consumption; Coloration efficiencies; Electro-chromic applications; Electrochromic materials; Electrochromic performance; Independent control; Light transmittance; Technical challenges; Electrochromism; aluminum; cation; electrical property; electrochemical method; electron; light scattering; performance assessment; redox conditions; transmittance
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190099
作者单位	Department of Chemical and Biomolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260, Singapore; Cambridge Centre for Advanced Research and Education in Singapore, 1 Create Way, Singapore, 138602, Singapore; Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge, CB2 3RA, United Kingdom
推荐引用方式 GB/T 7714	Zhang S.,Cao S.,Zhang T.,et al. Al3+ intercalation/de-intercalation-enabled dual-band electrochromic smart windows with a high optical modulation, quick response and long cycle life[J],2018,11(10).
APA	Zhang S.,Cao S.,Zhang T.,Fisher A.,&Lee J.Y..(2018).Al3+ intercalation/de-intercalation-enabled dual-band electrochromic smart windows with a high optical modulation, quick response and long cycle life.Energy & Environmental Science,11(10).
MLA	Zhang S.,et al."Al3+ intercalation/de-intercalation-enabled dual-band electrochromic smart windows with a high optical modulation, quick response and long cycle life".Energy & Environmental Science 11.10(2018).