1. 溶剂依赖型碳点的制备及水含量检测和防伪应用.
- Author
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崔 赛, 孟雅婷, 王松柏, 董 川, and 双少敏
- Subjects
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CHEMICAL stability , *SUBSTANCE abuse , *OPTICAL properties , *DOPING agents (Chemistry) , *HYDROGEN bonding , *QUANTUM dot synthesis - Abstract
Nitrogen doped fluorescent carbon dots (N-CDs) with high quantum yield (QY=87. 76%) were synthesized by solvothermal method using diphenylamino-4-benzaldehyde and o-phenylenediamine as raw materials and ethanol as solvent. The optical properties of N-CDs in organic solvents and aqueous solutions were investigated, indicating that N-CDs have good solvent dependence and chemical stability. The addition of water constructed a hydrogen bonding grid in N-CDs, thereby achieving a redshift in emission wavelength, and the N-CDs solution changes from blue to yellow. Furthermore, based on the reversible color change from blue to yellow of N-CDs fluorescent test strips, a portable air humidity visualization detection test strip was prepared. In addition, N-CDs can also be used for fluorescent ink, writing paper, and fluorescent flexible films, which expanding their applications in information transmission, advanced anti-counterfeiting encryption, and solid-state fluorescence. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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