One-step hydrothermal synthesis of fluorescence carbon quantum dots with high product yield and quantum yield
A one-step hydrothermal synthesis of nitrogen and silicon co-doped fluorescence carbon quantum dots (N,Si-CQDs), from citric acid monohydrate and silane coupling agent KH-792 with a high product yield (PY) of 52.56% and high quantum yield (QY) of 97.32%, was developed. This greatly improves both the PY and QY of CQDs and provides a new approach for a large-scale production of high-quality CQDs. Furthermore, N,Si-CQDs were employed as phosphors without dispersants to fabricate white light-emitting diodes (WLEDs) with the color coordinates at (0.29, 0.32). It is suggested that N,Si-CQDs have great potential as promising fluorescent materials to be applied in WLEDs.
Item Type | Article |
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Uncontrolled Keywords | carbon quantum dots; high fluorescence quantum yield; high product yield; hydrothermal reaction; silane coupling agent |
Subjects |
Chemical Engineering(all) > Bioengineering Chemistry(all) Materials Science(all) Engineering(all) > Mechanics of Materials Engineering(all) > Mechanical Engineering Engineering(all) > Electrical and Electronic Engineering |
Date Deposited | 26 Jul 2024 22:25 |
Last Modified | 26 Jul 2024 22:25 |
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