In this study, fluorescent nitrogen-doped carbon nanoparticles (N-CNPs) were prepared using a facile and green hydrothermal method. A number of characterization techniques were employed to analyze the physicochemical properties of prepared N-CNPs. Fluorescence spectroscopy revealed that N-CNPs exhibit bright fluorescence emission (maximum at 502 nm) under the continuous 400 nm excitation. Prepared N-CNPs were successfully utilized for optical temperature sensing in the range of 25–95 °C. The mechanism of temperature sensing was discussed.
- Temperature sensing
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Signal Processing
- Electrical and Electronic Engineering