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- W4283258553 abstract "Abstract Carbon dots (CDs) have attracted considerable interest due to their remarkable performance, low cost and ease of preparation, and wide range of potential applications. Surface engineering, including modifying the surface functional group and subsequent chemical modification, is preferable to achieve the requirement of the specific application. Oxygen and Nitrogen-based surface functional groups are two common functionalizations on CDs that are subsequently generated during the synthetic process. In this study, we elucidate the optical properties of oxygen and nitrogen-functionalized CDs using time-dependent density functional theory (TD-DFT). Both considered functional groups, the carbon-oxygen double bond (-C=O) and amino groups (-NH 2 ), are quite favourable to tailor the optical properties of CDs, especially in enhancing its absorption spectrum. Moreover, the carbonyl (-C=O) and amino (-NH 2 ) functional groups effectively serve a new absorption peak in the first near-infrared window (650-900 nm). Our results suggest the potential application of the amino and carbonyl functionalized CDs as a photothermal agent in photothermal cancer therapy." @default.
- W4283258553 created "2022-06-23" @default.
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- W4283258553 date "2022-06-01" @default.
- W4283258553 modified "2023-09-25" @default.
- W4283258553 title "Surface Functional Groups Effect on the Absorption Spectrum of Carbon Dots: Initial TD-DFT Study" @default.
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- W4283258553 doi "https://doi.org/10.1088/1742-6596/2243/1/012043" @default.
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