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Liquid Crystals Volume 50, 2023 - Issue 13-14
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Research Article

Polymer-dispersed liquid crystals with UV-shielding properties

Jianjing Gaoa Xi’an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science（TIMES), School of Electronic Information, Xijing University, Xi’an, ChinaView further author information
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Ping Yua Xi’an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science（TIMES), School of Electronic Information, Xijing University, Xi’an, China;b State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, P. R. ChinaView further author information
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Shengtao Zhua Xi’an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science（TIMES), School of Electronic Information, Xijing University, Xi’an, ChinaView further author information
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Lifen Wena Xi’an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science（TIMES), School of Electronic Information, Xijing University, Xi’an, ChinaView further author information
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Xingru Wanga Xi’an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science（TIMES), School of Electronic Information, Xijing University, Xi’an, ChinaView further author information
,
Wenqi Songa Xi’an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science（TIMES), School of Electronic Information, Xijing University, Xi’an, ChinaView further author information
,
Yuan Gea Xi’an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science（TIMES), School of Electronic Information, Xijing University, Xi’an, ChinaView further author information
,
Zemin Hea Xi’an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science（TIMES), School of Electronic Information, Xijing University, Xi’an, ChinaView further author information
&
Zongcheng Miaoc School of Artificial Intelligence, Optics and Electronics (IOPEN), Northwestern Polytechnical University, Xi’an, Shaanxi, P. R. ChinaCorrespondence[email protected]
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Pages 2104-2113 | Received 23 Apr 2023, Accepted 22 Jun 2023, Published online: 03 Jul 2023
 
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ABSTRACT

Polymer-dispersed liquid crystal (PDLC) films are widely used in intelligent opto-electronic field owing to their electrically switchable properties. Previous studies have focused on the improvement of electro-optical properties of PDLC film in visible light bands; yet, the application of PDLC in other bands has few research. In this paper, vinylferrocene was introduced into PDLC films containing polyhedral oligomeric silsesquioxane (POSS) to improve UV-shielding properties. Scanning electron microscopy (SEM) studies revealed that vinylferrocene was uniformly dispersed in the polymer network. The structure could improve the electro-optical properties of PDLC film. The effect of temperature on PDLC film was studied. When the temperature reached 35°C, the PDLC composite film polymer network had better electro-optical properties. The PDLC composite films can effectively shield 86.73% UV light at on-state and 93.37% at off-state. The unique UV-shielding properties make this PDLC film a great application potential in smart windows. This PDLC combined with POSS and vinylferrocene film also exhibits large-area processability, which can further expand its application.

GRAPHICAL ABSTRACT

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the National Key R&D Program of China [No. 2022YFB3603703], National Natural Science Foundation of China [No. 52173263], the Qinchuangyuan High-level Talent Project of Shaanxi [No. QCYRCXM-2022-219], the Regional Innovation Capability Guidance Program of Shaanxi [No. 2022QFY03-02], Natural Science Basic Research Plan in Shaanxi Province of China [No. 2022JQ-139, No. 2022JQ-442] and the scientific research fund for high-level talents of Xijing University [No. XJ21B16] and the Youth Innovation Team of Shaanxi Universities.

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