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- W4205541855 abstract "A simple and convenient preparation of multicolor carbon dot (CD) solutions was proposed using neutral red as the carbon and nitrogen sources by a layering and extraction procedure. After poly(vinylpyrrolidone) (PVP) as the cross-linking agent was doped into as-prepared solutions, red-, orange-, and yellow-emitting CD powders were finally fabricated with solid-state fluorescence quantum (QY) yields of 6.33, 16.5, and 43.6%, respectively. Through studies of surface functional groups and photoluminescence (PL) property compared with solution and powder states of CDs, the cross-linking effect emission (CEE) brought by PVP was confirmed in charge of the high solid-state QY of CD powders. In addition, the conjugate structure of neutral red and increasing hydrophobicity are believed to be responsible for the long-wavelength emission of CD powders. Notably, multicolor imaging of latent fingerprints (LFPs) was successfully achieved on complex background surfaces under 365 nm UV illumination. As a result, these carbon-based phosphors are promising in forensic investigation, bioimaging, and sensing fields." @default.
- W4205541855 created "2022-01-25" @default.
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- W4205541855 date "2022-01-21" @default.
- W4205541855 modified "2023-10-16" @default.
- W4205541855 title "Carbon Dot Powders with Cross-Linking-Based Long-Wavelength Emission for Multicolor Imaging of Latent Fingerprints" @default.
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- W4205541855 doi "https://doi.org/10.1021/acsanm.1c03901" @default.
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