Color-Neutral Smart Window Enabled by Gradient Reversible Alloy Deposition

被引：8

作者：

Zhang, Yingxin ^{[1
]}

Xu, Bing ^{[1
]}

Huang, Bingkun ^{[2
,3
]}

He, Tongzhuang ^{[1
]}

Meng, Fanlu ^{[1
]}

Tian, Weiqian ^{[1
]}

Zhu, Yue ^{[1
]}

Wu, Jingyi ^{[1
]}

Wang, Huanlei ^{[1
]}

Li, Haizeng ^{[2
]}

Chen, Jingwei ^{[1
]}

机构：

[1] Ocean Univ China, Sch Mat Sci & Engn, Qingdao 266100, Peoples R China

[2] Shandong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266237, Peoples R China

[3] Shandong Univ, Sch Energy & Power Engn, Jinan 250061, Shandong, Peoples R China

来源：

ACS ENERGY LETTERS | 2024年 / 9卷 / 08期

基金：

中国国家自然科学基金;

关键词：

METAL ELECTRODEPOSITION; DYNAMIC WINDOWS; TRANSPARENT; BLACK; BLUE;

D O I：

10.1021/acsenergylett.4c01677

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Reversible metal electrodeposition (RME)-based smart windows can realize large solar heat gain coefficient (SHGC) modulation, where Zn-RME emerges as an intriguing option with high theoretical coloration efficiency (CE), cost effectiveness, and color neutrality. Herein, Cu2+ was selected as electrolyte additive to lower the activation energy and homogenize the electrical field distribution during metal plating, forming gradient CuZn alloy nanoparticles via reversible alloy electrodeposition (RAE). Compared to Zn-RME, the CuZn-RAE electrode can achieve extremely low transmittance (0.01%) and color neutrality (chroma C* = 5.8) within 2 min, large transmittance modulation (82%), fast switching times (t(c) = 8 s, t(b) = 18 s), higher CE, elevated memory effect, and extended cycling stability. Additionally, a tinted CuZn-RAE device can effectively block infrared heat and reduce surface temperature by 7.1 degrees C, and the insulating glass unit (IGU) modeled with a CuZn-RAE device offers large solar heat modulation with Delta SHGC of 0.448, showing great application potential toward dynamic smart windows.

引用

页码：4162 / 4171

页数：10

共 4 条

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[3] Color-neutral WO3-I2 complementary electrochromic device based on reversible iodine electrodeposition
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[4] Color neutral smart windows using nickel oxide electrochromism and ion intercalation with reversible metal electrodeposition
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