期刊
LUMINESCENCE
卷 32, 期 1, 页码 114-118出版社
WILEY
DOI: 10.1002/bio.3157
关键词
acid carbonization; carbon dots; fluorescence; nanoparticles; sucrose
资金
- Swinburne University of Technology Sarawak Campus [2-5509]
Carbon dots, a new class of nanomaterial with unique optical property and have great potential in various applications. This work demonstrated the possibility of tuning the emission wavelength of carbon dots by simply changing the acid type used during synthesis. In particular, sulfuric and phosphoric acids and a mixture of the two were used to carbonize the same starting precursor, sucrose. This resulted in the isolation of carbon dots with blue (440nm) and green (515nm) emission. Interestingly, the use of an acid mixture at various ratios did not shift the initial emission profile, but did obviously alter the fluorescence efficiency of the peaks. This clearly showed that acid type can be used as an alternative tool to produce carbon dots that have different emissions using the same starting precursor. Copyright (c) 2016 John Wiley & Sons, Ltd.
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