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Xu Q, Zhang T, Liu M, Wang M, Cao K, Chen R. CsBr-Triggered Reversible Phase Transition of Perovskite Nanocrystals for Advanced Information Encryption and Decryption. ACS APPLIED MATERIALS & INTERFACES 2024; 16:17051-17061. [PMID: 38511856 DOI: 10.1021/acsami.4c01996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Luminescent perovskite nanocrystals (NCs), possessing the advantages of low cost, easy detection, and excellent luminescence, are becoming more and more significant in the fields of information encryption and decryption. Most hydrochromic perovskite NCs for information encryption have moderate reversibility and are easily passively decrypted by water in the moist air, limiting their practical applications. Herein, a lyochromic material is synthesized based on reversible phase transition between luminescent CsPbBr3-HBr (pretreating CsPbBr3 with HBr) and nonluminescent Cs4PbBr6, exhibiting excellent reversibility in 50 cycles triggered by CsBr solution. HBr treatment boosts the ion migration of NCs via diminishing surface ligands and passivating Br vacancy, assisting CsBr concentration acting as a crucial factor in dynamic ion exchange equilibrium between the trigger solution and CsPbBr3-HBr. By utilizing CsPbBr3-HBr as a safety ink, the CsBr-triggered photoluminescence switch has been demonstrated to be reproducible, stable, and reliable for information encryption and decryption.
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Affiliation(s)
- Qing Xu
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology and School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Tianwei Zhang
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology and School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Mengjia Liu
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology and School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Min Wang
- State Key Laboratory of Material Processing and Die & Mould Technology and School of Material Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Kun Cao
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology and School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Rong Chen
- State Key Laboratory of Intelligent Manufacturing Equipment and Technology and School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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Liang P, Zheng Y, Liu F, Shao H, Hu C, Lei B, Zhang X, Liu Y, Zhuang J, Zhang X. General Synthesis of Carbon Dot-Based Composites with Triple-Mode Luminescence Properties and High Stability. JACS AU 2023; 3:2291-2298. [PMID: 37654575 PMCID: PMC10466326 DOI: 10.1021/jacsau.3c00311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 09/02/2023]
Abstract
Carbon dot (CD)-based luminescent materials have attracted great attention in optical anti-counterfeiting due to their excellent photophysical properties in response to ultraviolet-to-visible excitation. Hence, there is an urgent need for the general synthesis of CD-based materials with multimode luminescence properties and high stability; however, their synthesis remains a formidable challenge. Herein, CDs were incorporated into a Yb,Tm-doped YF3 matrix to prepare CDs@YF3:Yb,Tm composites. The YF3 plays a dual role, not only serving as a host for fixing rare earth luminescent centers but also functioning as a rigid matrix to stabilize the triplet state of the CDs. Under the excitation of 365 nm ultraviolet light and 980 nm near-infrared light, CDs@YF3:Yb,Tm exhibited blue fluorescence and green room-temperature phosphorescence of CDs and upconversion luminescence of Tm3+, respectively. Due to the strong protection of the rigid matrix, the stability of CDs@YF3:Yb,Tm is greatly improved. This work provides a general synthesis strategy for achieving multimode luminescence and high stability of CD-based luminescent materials and offers opportunities for their applications in advanced anti-counterfeiting and information encryption.
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Affiliation(s)
- Ping Liang
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong
Provincial Engineering Technology Research Center for Optical Agriculture,
College of Materials and Energy, South China
Agricultural University, Guangzhou 510642, China
| | - Yihao Zheng
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong
Provincial Engineering Technology Research Center for Optical Agriculture,
College of Materials and Energy, South China
Agricultural University, Guangzhou 510642, China
- Joint
Key Laboratory of the Ministry of Education, Institute of Applied
Physics and Materials Engineering, University
of Macau, Avenida da Universidade, Taipa, Macao SAR 999078, China
| | - Fengru Liu
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong
Provincial Engineering Technology Research Center for Optical Agriculture,
College of Materials and Energy, South China
Agricultural University, Guangzhou 510642, China
| | - Huaiyu Shao
- Joint
Key Laboratory of the Ministry of Education, Institute of Applied
Physics and Materials Engineering, University
of Macau, Avenida da Universidade, Taipa, Macao SAR 999078, China
| | - Chaofan Hu
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong
Provincial Engineering Technology Research Center for Optical Agriculture,
College of Materials and Energy, South China
Agricultural University, Guangzhou 510642, China
| | - Bingfu Lei
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong
Provincial Engineering Technology Research Center for Optical Agriculture,
College of Materials and Energy, South China
Agricultural University, Guangzhou 510642, China
| | - Xuejie Zhang
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong
Provincial Engineering Technology Research Center for Optical Agriculture,
College of Materials and Energy, South China
Agricultural University, Guangzhou 510642, China
| | - Yingliang Liu
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong
Provincial Engineering Technology Research Center for Optical Agriculture,
College of Materials and Energy, South China
Agricultural University, Guangzhou 510642, China
| | - Jianle Zhuang
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong
Provincial Engineering Technology Research Center for Optical Agriculture,
College of Materials and Energy, South China
Agricultural University, Guangzhou 510642, China
| | - Xingcai Zhang
- School
of Engineering and Applied Sciences, Harvard
University, Cambridge, Massachusetts 02138, United States
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Wu Y, Chen X, Wu W. Multiple Stimuli-Response Polychromatic Carbon Dots for Advanced Information Encryption and Safety. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206709. [PMID: 36642825 DOI: 10.1002/smll.202206709] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Optical information encryption and safety have aroused great attention since they are closely correlated to data protection and information safety. The development of multiple stimuli-response optical materials for constructing large-capacity information encryption and safety is very important for practical applications. Carbon dots (CDs) have many gratifying merits, such as polychromatic emission, diverse luminous categories, and stable physicochemical properties, and are considered as one of the most ideal candidates for information protection. Herein, carbon core, functional groups, solvents, and other crucial factors are reviewed for outputting polychromatic emission of multiple luminous categories. In particular, substrate engineering strategies have been emphasized for their critical role in yielding excellent optical features of multiple luminous categories. High-capacity information encryption and safety strategies are reviewed by relying on the rich optical properties of CDs, such as polychromatic emission, multiple luminous categories of fluorescence, afterglow, and upconversion, as well as external-stimuli-assisted optical changes. Some perspectives for preparing excellent CDs and further developing information security strategies are proposed. This review provides a good reference for the manipulation of polychromatic CDs and the development of next-generation information encryption and safety.
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Affiliation(s)
- Youfusheng Wu
- Laboratory of Printable Functional Materials and Printed Electronics, Research Center for Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430072, P. R. China
| | - Xiao Chen
- Laboratory of Printable Functional Materials and Printed Electronics, Research Center for Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430072, P. R. China
| | - Wei Wu
- Laboratory of Printable Functional Materials and Printed Electronics, Research Center for Graphic Communication, Printing and Packaging, Wuhan University, Wuhan, 430072, P. R. China
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Zhang L, Zhang F, Chen J, Jia L, Li Y, Xu J. Stimuli-responsive luminescent nanomaterial based on lanthanide modified carbon dots for multilevel information encryption. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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