柠檬酸
甲酰胺
碳纤维
产量(工程)
量子产额
摩尔比
激发态
量子点
材料科学
化学
光化学
核化学
无机化学
荧光
纳米技术
有机化学
催化作用
光学
复合数
核物理学
冶金
复合材料
物理
作者
Evgeniia A. Stepanidenko,Anna A. Vedernikova,Mikhail D. Miruschenko,Daler R. Dadadzhanov,Daniel Feferman,Bohan Zhang,Songnan Qu,Elena V. Ushakova
标识
DOI:10.1021/acs.jpclett.3c02837
摘要
The formation of red-emissive optical centers in carbon dots based on citric acid and formamide was investigated by varying the synthesis parameters with focus on finding optimal─necessary and sufficient─amount of precursors to decrease byproduct amount and to increase the chemical yield of red-emissive carbon dots. The emission is observed at 640 nm excited at 590 nm and quantum yield reaches up 19%. A high chemical yield of carbon dots of 26% was achieved at an optimal molar ratio of citric acid to formamide of 1:4.
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