红外线的
光电子学
窗口(计算)
材料科学
调制(音乐)
可见光谱
热的
对偶(语法数字)
多波段设备
光学
纳米技术
电信
计算机科学
物理
声学
气象学
艺术
文学类
操作系统
天线(收音机)
作者
F. Jing,Zuowei Zhang,Luoning Zhang,Foxin Zhou,Jing Qin,Cheng Zou,Yanzi Gao,Meina Yu,Huai Yang
出处
期刊:Small
[Wiley]
日期:2025-08-19
卷期号:21 (39): e06780-e06780
被引量:1
标识
DOI:10.1002/smll.202506780
摘要
Polymer dispersed liquid crystal (PDLC) exhibits excellent electro-optical properties for displays and smart windows but lacks sufficient near-infrared modulation for full solar management. Herein, a composite film with dual electrical-thermal control is designed for this purpose, which integrates PDLC film as an electrochromic layer and tungsten-doped vanadium dioxide (W/VO2) coating as a thermochromic layer. The composite film not only facilitates active regulation of visible light through electrical control, but also enables the modulation of near-infrared light via phase transitions in response to temperature changes. Furthermore, the diverse chemical bonding states within the PDLC film confer it with high emissivity in the atmospheric window (8-13 µm), demonstrating remarkable radiative cooling performance. The composite film achieves 13.90% solar modulation and 54.77% visible transmittance. MATLAB simulations reveal diurnal/nocturnal cooling powers of 59.55 and 109.01 W m-2 respectively. The solar simulator test demonstrates that the film achieves a significant temperature reduction of 12.5 °C relative to blank glass substrates, while the outdoor temperature test reveals that the film achieves a sub-ambient cooling performance of 2.3 °C below the surrounding air temperature. This innovative design represents a significant advancement in smart window technology, providing extensive light and thermal management capabilities.
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