A novel low-voltage fast-response electrically controlled dimming film based on fluorinated PDLC for smart window applications

被引：32
作者：
Zhang, Zuowei [1 ]
He, Xian [1 ]
Zhang, Luoning [1 ]
Xu, Jianjun [2 ,3 ]
Yuan, Baohua [1 ]
Chen, Chao [1 ]
Zou, Cheng [1 ,2 ]
Wang, Qian [1 ]
Gao, Yanzi [1 ]
Yu, Meina [1 ]
Yang, Huai [1 ,2 ,4 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing, Peoples R China
[2] Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, Beijing, Peoples R China
[3] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing, Peoples R China
[4] Peking Univ, Sch Mat Sci & Engn, Beijing, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2024年 / 479卷
基金：
中国国家自然科学基金;
关键词：
PDLC; Electro-optical properties; Fluorinated monomers; Smart window; Heat regulation; ELECTROOPTICAL PROPERTIES; TRANSPARENT ELECTRODES; PHASE-TRANSITION; SOLAR MODULATION; POLYMER NETWORKS; LIQUID-CRYSTALS; QUANTUM DOTS; MORPHOLOGY; NANOCOMPOSITE; TRANSMISSION;
D O I：
10.1016/j.cej.2023.147668
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A fluorinated polymer dispersed liquid crystal (PDLC) film with low operating voltage and high contrast ratio was successfully fabricated via the ultraviolet-initiated polymerization induced phase separation method. Effects of chemical structure and weight ratio of fluorinated monomers on the properties of PDLC films were systematically investigated through characterization of electro-optical response, micro morphology, optical spectrum and thermal analysis. Compared with the primitive sample, the addition of fluorinated monomers effectively improves the electro-optical properties of the film. The threshold voltage (Vth) is decreased by 39.7 % from 6.3 V to 3.8 V and the saturation voltage is reduced by 30 % from 15.8 V to 11.8 V for a 20 mu m-thick film. Besides, the contrast ratio is improved to 110. Meanwhile, its thermal stability and hydrophobic property are also improved. Additionally, due to the abundance of C-O and C-F bonds in these compounds and the porous structure, the prepared film allows for transmittance modulation of sunlight. This research is anticipated to provide an innovative approach to optimize the performance of PDLC films for practical applications.
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页数：12
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共 72 条
[11]   Frequency-Driven Self-Organized Helical Superstructures Loaded with Mesogen-Grafted Silica Nanoparticles [J].
Gutierrez-Cuevas, Karla G. ;
Wang, Ling ;
Zheng, Zhi-gang ;
Bisoyi, Hari K. ;
Li, Guoqiang ;
Tan, Loon-Seng ;
Vaia, Richard A. ;
Li, Quan .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2016, 55 (42) :13090-13094
[12]   Low switching voltage ZnO quantum dots doped polymer-dispersed liquid crystal film [J].
Hsu, Chuan-Chun ;
Chen, Yi-Xuan ;
Li, Hui-Wen ;
Hsu, Jy-shan .
OPTICS EXPRESS, 2016, 24 (07) :7063-7068
[13]   Three-Dimensional Fe(II)-based Metallo-Supramolecular Polymers with Electrochromic Properties of Quick Switching, Large Contrast, and High Coloration Efficiency [J].
Hu, Chih-Wei ;
Sato, Takashi ;
Zhang, Jian ;
Moriyama, Satoshi ;
Higuchi, Masayoshi .
ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (12) :9118-9125
[14]   Combined effect of hydroxylated and fluorinated acrylate monomers on improving the electro-optical and mechanical performances of PDLC-films [J].
Hu, Junmei ;
Hu, Wei ;
Zhang, Shuaifeng ;
Sun, Chang ;
Lan, Ruochen ;
Cao, Yaping ;
Ren, Yunxiao ;
Xu, Jianjun ;
Wang, Xiao ;
Saeed, Mohsin Hassan ;
Jia, Xilai ;
Yang, Zhou ;
Gao, Yanzi ;
Zhang, LanYing ;
Yang, Huai .
LIQUID CRYSTALS, 2022, 49 (06) :769-779
[15]   Analysis of morphological behaviour and electro-optical properties of silica nanoparticles doped polymer dispersed liquid crystal composites [J].
Jayoti, Divya ;
Malik, Praveen ;
Singh, Arshdeep .
JOURNAL OF MOLECULAR LIQUIDS, 2017, 225 :456-461
[16]   Fenestration of today and tomorrow: A state-of-the-art review and future research opportunities [J].
Jelle, Bjorn Petter ;
Hynd, Andrew ;
Gustavsen, Arild ;
Arasteh, Dariush ;
Goudey, Howdy ;
Hart, Robert .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2012, 96 (01) :1-28
[17]   Investigation of dielectric properties in polymer dispersed liquid crystal films doped with CuO nanorods [J].
Jiang, Zhipeng ;
Zheng, Jihong ;
Liu, Yourong ;
Zhu, Qing .
JOURNAL OF MOLECULAR LIQUIDS, 2019, 295
[18]   Effects of dye doping on electro-optical, thermo-electro-optical and dielectric properties of polymer dispersed liquid crystal films [J].
Katariya-Jain, Anuja ;
Deshmukh, R. R. .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2022, 160
[19]   Emerging Thermal-Responsive Materials and Integrated Techniques Targeting the Energy-Efficient Smart Window Application [J].
Ke, Yujie ;
Zhou, Chengzhi ;
Zhou, Yang ;
Wang, Shancheng ;
Chan, Siew Hwa ;
Long, Yi .
ADVANCED FUNCTIONAL MATERIALS, 2018, 28 (22)
[20]   Silver nanowire transparent electrodes for liquid crystal-based smart windows [J].
Khaligh, Hadi Hosseinzadeh ;
Liew, Kelvin ;
Han, Yining ;
Abukhdeir, Nasser Mohieddin ;
Goldthorpe, Irene A. .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2015, 132 :337-341
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