One-pot green synthesis of optically pH-sensitive carbon dots with upconversion luminescence.
One-pot fabrication of fluorescent carbon dots was facilely developed by directly heating ascorbic acid aqueous solution at 90 °C. The resulting carbon dots possess excitation, pH and polarity-dependent luminescence and upconversion fluorescence properties.
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China.
Xiaofang
X
Jia
Jing
J
Li
Erkang
E
Wang
D001205:Ascorbic Acid / Q000737:chemistry; D002244:Carbon / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D045663:Quantum Dots; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature
D002244:Carbon; D001205:Ascorbic Acid