Shengshun Duan: Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China. ORCID
Pinzhen Chen: Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China.
Yu-An Xiong: Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, China. ORCID
Fangzhi Zhao: Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China.
Zhengyin Jing: Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, China.
Guowei Du: Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, China.
Xiao Wei: Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China.
Shengxin Xiang: Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China.
Jianlong Hong: Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China. ORCID
Qiongfeng Shi: Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China. ORCID
Yumeng You: Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, China. ORCID
Jun Wu: Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China. ORCID
Hybrid organic-inorganic molecular ferroelectrics have emerged as promising materials for multifunctional piezoelectric devices. However, they present challenges in practical applications because of their inherent brittleness and poor ductility. Herein, we present a flexible mechano-optical dual-responsive molecular ferroelectric composite by incorporating trimethylchloromethyl ammonium (TMCM)-MnCl into styrene ethylene butylene styrene (SEBS) matrix. The SEBS/TMCM-MnCl exhibits excellent stretchable mechanical properties (tensile strain >1300%, thickness of 30 μm), piezoelectricity, and photoluminescence, enabling advanced visual-tactile-fused anticounterfeiting and encryption applications. Anticounterfeiting and antitampering tags are developed to judge whether the valued items are true or tampered with based on pattern recognition and piezoelectric response, respectively. Additionally, high-security password keyboards featuring triple-layer encryption are designed, offering more password combinations (524,288 times greater than those of traditional password devices relying solely on digital encryption) and enhanced security reliability against cracking attempts. This work can inspire designs of multifunctional optoelectronic materials and enable visual-tactile-fused intelligent applications in human-machine interfaces, information security, and advanced robotics.
References
Science. 2019 Mar 15;363(6432):1206-1210
[PMID: 30872522]
ACS Nano. 2022 Mar 22;16(3):3744-3755
[PMID: 35234032]
Angew Chem Int Ed Engl. 2023 Apr 24;62(18):e202300353
[PMID: 36867014]
