Solid-state nitrogen-doped carbon nanoparticles with tunable emission prepared by a microwave-assisted method.

ABSTRACT: Tunable emissive solid-state carbon nanoparticles (CNPs) have been successfully synthesized by a facile synthesis through microwave irradiation. Modulating microwave interaction with the sample to generate abrupt localized heating is a long-term challenge to tailor the photoluminescence properties of CNPs. This study systematically revealed that the sample temperature through microwave irradiation plays a crucial role in controlling the photoluminescence properties over other reaction conditions, such as irradiation time and microwave duty cycle. When the sample temperature reached 155 °C in less than three minutes, the CNP sample exhibited a green-yellowish emission with the highest quantum yield (QY) of 14.6%. Time-dependent density functional theory (TD-DFT) study revealed that the tuna

SUBMITTER: Permatasari FA 

PROVIDER: S-EPMC9044554 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature