Full-frame and high-contrast smart windows from halide-exchanged perovskites

被引：66

作者：

Liu, You ^{[1
,2
]}

Wang, Jungan ^{[1
,2
]}

Wang, Fangfang ^{[1
,2
]}

Cheng, Zhengchun ^{[1
,2
]}

Fang, Yinyu ^{[1
,2
]}

Chang, Qing ^{[1
,2
]}

Zhu, Jixin ^{[1
,2
]}

Wang, Lin ^{[1
,2
]}

Wang, Jianpu ^{[1
,2
]}

Huang, Wei ^{[3
,4
,5
,6
]}

Qin, Tianshi ^{[1
,2
]}

机构：

[1] Nanjing Tech Univ NanjingTech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Key Lab Flexible Elect KLOFE, Nanjing, Jiangsu, Peoples R China

[2] Nanjing Tech Univ NanjingTech, Inst Adv Mat IAM, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Nanjing, Jiangsu, Peoples R China

[3] Nanjing Univ Posts & Telecommun, Key Lab Organ Elect & Informat Displays KLOEID, Nanjing, Jiangsu, Peoples R China

[4] Nanjing Univ Posts & Telecommun, Inst Adv Mat IAM, Nanjing, Jiangsu, Peoples R China

[5] Northwestern Polytech Univ, Frontiers Sci Ctr Flexible Elect, Xian, Shaanxi, Peoples R China

[6] Northwestern Polytech Univ, Inst Flexible Elect IFE, Xian, Shaanxi, Peoples R China

来源：

NATURE COMMUNICATIONS | 2021年 / 12卷 / 01期

基金：

中国国家自然科学基金;

关键词：

CONVERSION; EFFICIENT; DEVICES; CELLS; POWER;

D O I：

10.1038/s41467-021-23701-z

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Window glazing plays an essential role to modulate indoor light and heat transmission, which is a prospect to save the energy cost in buildings. The latest photovoltachromic technology has been regarded as one of the most ideal solutions, however, to achieve full-frame size (100% active area) and high-contrast ratio (>30% variable in visible wavelength) for smart window applicability is still a challenge. Here we report a photovoltachromic device combining full-transparent perovskite photovoltaic and ion-gel based electrochromic components in a vertical tandem architecture without any intermediated electrode. Most importantly, by accurately adjusting the halide-exchanging period, this photovoltachromic module can realize a high pristine transmittance up to 76%. Moreover, it possesses excellent colour-rendering index to 96, wide contrast ratio (>30%) on average visible transmittance (400-780 nm), and a self-adaptable transmittance adjustment and control indoor brightness and temperature automatically depending on different solar irradiances. Window glazing plays a crucial role in modulating indoor light and heat transmission, which is beneficial for energy saving. Here, Liu et al. report a full-frame and high-contrast smart windows made of perovskite photovoltaic and ion-gel electrochromic components to realise self-adjusting brightness and temperature regulator.

引用

页数：8

共 26 条

[1] Nanostructured materials for advanced energy conversion and storage devices [J].