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Xu Z, Luo D, Wu P, Hou B, Zhang Z, Wang S, Gao T, Huang G, Fang L. Ultrasound-assisted nucleation and growth of hydroxyl-protected and ligand-free Cs 3Cu 2X 5 nanocrystals with bright luminescence. Phys Chem Chem Phys 2024; 26:20891-20897. [PMID: 39044688 DOI: 10.1039/d4cp02172j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
The commercial applications of lead halide perovskites are hindered by their negative environmental impact and inherent instability. Consequently, developing environmentally friendly copper-based perovskite materials is crucial for future solid-state lighting and display applications. In this study, an ultrafast high-power ultrasonic synthesis strategy was utilized to achieve uniform nucleation and growth of Cs3Cu2X5 (X = Cl, Br, I) nanocrystals (NCs) that possess remarkable luminescence properties, hydroxyl protection, and ligand-free characteristics. These Cs3Cu2X5 NCs exhibited a tunable spectral range spanning from 446 to 525 nm, accompanied by photoluminescence quantum yields (PLQYs) varying from 0.2% to 79.2%. The spectral attributes of the NCs were effectively controlled by modulating the halide type and composition. It is worth noting that density functional theory (DFT) calculations offer valuable insights into the synthesis of NCs and the selection of suitable alcohol solvents. Moreover, we successfully fabricated an efficient and stable white light-emitting diode (WLED) with a high luminous efficiency of 23 lm W-1 and CIE color coordinates of (0.3266, 0.3487). Our work provides a new strategy to synthesize Cs3Cu2X5 NCs and holds promise for their potential application in display and lighting devices.
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Affiliation(s)
- Zhiqun Xu
- Suzhou Chien-shiung Institute of Technology, Taicang, 215411, China.
| | - Dengfeng Luo
- Peng Cheng Laboratory, Shenzhen 518055, China
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Pei Wu
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bo Hou
- Suzhou Chien-shiung Institute of Technology, Taicang, 215411, China.
| | - Zhihao Zhang
- Suzhou Chien-shiung Institute of Technology, Taicang, 215411, China.
| | - Shuqiang Wang
- Institute of Food Safety and Environment Monitoring, Fuzhou University, Fuzhou, 350108, China.
| | - Teng Gao
- Institute of Food Safety and Environment Monitoring, Fuzhou University, Fuzhou, 350108, China.
| | - Guobin Huang
- Institute of Food Safety and Environment Monitoring, Fuzhou University, Fuzhou, 350108, China.
| | - Lan Fang
- Suzhou Chien-shiung Institute of Technology, Taicang, 215411, China.
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Ouyang R, Feng M, Zhao Y, Liu J, Ma Y, Liu X, Liu B, Miao Y. Cubic Na 0.5Bi 0.5TiO 3 nanoperovskite significantly expands the application of sensitive immunosensor for the detection of carcinoembryonic antigen. Mikrochim Acta 2024; 191:381. [PMID: 38858277 DOI: 10.1007/s00604-024-06451-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 05/18/2024] [Indexed: 06/12/2024]
Abstract
Nanosized sodium bismuth perovskite titanate (NBT) was synthesized and first used as the electrochemical immune sensing platform for the sensitive detection of carcinoembryonic antigen (CEA). Gold nanoparticles (Au NPs) grew on the surface of NBT through forming Au-N bond to obtain Au@NBT, and a label-free electrochemical immunosensor was proposed using Au@NBT as an immunosensing recognizer towards CEA. The well-ordered crystal structure of NBT was not changed at all after the modification of Au NPs outside, but significantly improved the conductivity, catalytic activity, and biocompatibility of the Au@NBT-modified electrode. The unique cubic crystal nanostructure of NBT offered a large active area for both Au NP modification and the subsequent immobilization of biomolecules over the electrode surface, triggering the effective generation of promising properties of the proposed Au@NBT-based electrochemical immunosensor. As expected, favorable detection performances were achieved using this immunosensor towards CEA detection, where a good linear relationship between the current response and CEA concentration was obtained in the concentration range 10 fg mL-1 to 100 ng mL-1 with a low detection limit (LOD) of 13.17 fg mL-1. Also, the significantly enhanced selectivity, and stability guaranteed the promising electrochemical properties of this immunosensor. Furthermore, the analysis of real serum samples verified the high feasibility of this new method in clinical CEA detection. This work opens a new window for the application of nanoperovskite in the early detection of CEA.
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Affiliation(s)
- Ruizhuo Ouyang
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Meina Feng
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Yuefeng Zhao
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Jinyao Liu
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Yuanhui Ma
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Xi Liu
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Baolin Liu
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Yuqing Miao
- School of Materials and Chemistry, Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, 200093, China.
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Recent trends in fluorescent-based copper (II) chemosensors and their biomaterial applications. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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