DataVXAdvanced Materials TechnologiesPaper
journal article·2021-10

Stable Ultrathin Perovskite/Polyvinylidene Fluoride Composite Films for Imperceptible Multi‐Color Fluorescent Anti‐Counterfeiting Labels

Junlu Sun, Qilin Hua, Mengqi Zhao, Lin Dong, Yu Chang, Wenqiang Wu, Jing Li, Qiushuo Chen, Jianguo Xi, Weiguo Hu, Caofeng Pan, Chongxin Shan

Advanced Materials Technologies· Volume 6· Issue 10
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Source abstract

Abstract

Abstract As an essential part of information security in the Internet of Things (IoT), fluorescent labels possess a principal portion of anti‐counterfeiting due to its easy fabrication, low cost, and high yield. Here an ultrathin, stable, and patterned multi‐color fluorescent label with perovskite/polyvinylidene fluoride composite film is presented, which registers a resolution of 56.4 dpi and almost maintains its original fluorescent intensity after being immersed in water for 120 h. The variable color of fluorescent labels will improve the anti‐counterfeiting dimensions for the information security due to precise halogen constitutions. The imperceptible fluorescent labels are typically with a thickness of 1.2 um and a weight of 1.2 mg. They can be conformally adhered on the arbitrary curved substrate as the intelligent multi‐color fluorescent anti‐counterfeiting labels for IoT applications.
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Research context

Electronic materialsComposites

OpenAlex topics: Luminescence and Fluorescent Materials · Perovskite Materials and Applications · Advanced Sensor and Energy Harvesting Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Materials Physics Ministry of Education School of Physics and Microelectronics Zhengzhou University Zhengzhou 450001 P. R. China

CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro‐nano Energy and Sensor Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 100083 P. R. China

School of Nanoscience and Technology University of Chinese Academy of Sciences Beijing 100049 P. R. China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Beijing Municipality

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