Dual-light emitting 3D encryption with printable fluorescent-phosphorescent metal-organic frameworks

Jin Woo Oh; Seokyeong Lee; Hyowon Han; Omar Allam; Ji Il Choi; Hyeokjung Lee; Wei Jiang; Jihye Jang; Gwanho Kim; Seungsoo Mun; Kyuho Lee; Yeonji Kim; Jong Woong Park; Seonju Lee; Seung Soon Jang; Cheolmin Park

doi:10.1038/s41377-023-01274-4

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Dual-light emitting 3D encryption with printable fluorescent-phosphorescent metal-organic frameworks

Original Articles

- Dual-light emitting 3D encryption with printable fluorescent-phosphorescent metal-organic frameworks
- Light: Science & Applications Vol. 12, Issue 10, Pages: 2172-2186(2023)
- Affiliations：
  
  1.Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
  2.The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Drive, Atlanta, GA 30332-0405, USA
  3.School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, GA 30332-0245, USA
  4.Spin Convergence Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Author bio：
  
  Seung Soon Jang (seungsoon.jang@mse.gatech.edu)
  Cheolmin Park (cmpark@yonsei.ac.kr)
- Funds：
- DOI：10.1038/s41377-023-01274-4
  CLC：
- Published：31 October 2023，
  
  Published Online：12 September 2023，
  
  Received：12 January 2023，
  
  Revised：07 August 2023，
  
  Accepted：24 August 2023
- Accepted：
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Oh, J. W. et al. Dual-light emitting 3D encryption with printable fluorescent-phosphorescent metal-organic frameworks. Light: Science & Applications, 12, 2172-2186 (2023).
DOI：

Oh, J. W. et al. Dual-light emitting 3D encryption with printable fluorescent-phosphorescent metal-organic frameworks. Light: Science & Applications, 12, 2172-2186 (2023). DOI： 10.1038/s41377-023-01274-4.

摘要

Abstract

Optical encryption technologies based on room-temperature light-emitting materials are of considerable interest. Herein

we present three-dimensional (3D) printable dual-light-emitting materials for high-performance optical pattern encryption. These are based on fluorescent perovskite nanocrystals (NCs) embedded in metal-organic frameworks (MOFs) designed for phosphorescent host-guest interactions. Notably

perovskite-containing MOFs emit a highly efficient blue phosphorescence

and perovskite NCs embedded in the MOFs emit characteristic green or red fluorescence under ultraviolet (UV) irradiation. Such dual-light-emitting MOFs with independent fluorescence and phosphorescence emissions are employed in pochoir pattern encryption

wherein actual information with transient phosphorescence is efficiently concealed behind fake information with fluorescence under UV exposure. Moreover

a 3D cubic skeleton is developed with the dual-light-emitting MOF powder dispersed in 3D-printable polymer filaments for 3D dual-pattern encryption. This article outlines a universal principle for developing MOF-based room-temperature multi-light-emitting materials and a strategy for multidimensional information encryption with enhanced capacity and security.

关键词

Keywords

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