2013 Fiscal Year Final Research Report
Synthesis of carbon quantum dots in green solvents and evaluation of optical properties by means of spectromicroscopy
| Project/Area Number |
24760630
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Reaction engineering/Process system
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| Research Institution | Kanazawa University |
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Principal Investigator |
HIEJIMA Yusuke 金沢大学, 自然システム学系, 助教 (10415789)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | カーボンドット / 発光材料 / ナノカーボン / 分光分析 |
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| Research Abstract |
Carbon dots were synthesized with various methods, and observed with a Raman microscope. It was found that the crude products were inhomogeneous, and the D-band and the G-band were observed in the non-luminescent portion. The sample damage due to the irradiation of the excitation laser was fatal for detailed observation.
We have developed a new method of synthesis, where the pyrolysis was conducted in the droplets generated by a pair of electrosprays. The new method enable us to control the reaction more effectively than the conventional method of pyrolysis. We have found that various parameters to control the droplet size were useful to improve the yields and to control the optical properties of the products.
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