Red, green, and blue light-emitting carbon dots prepared from gallic acid for white light-emitting diode applications
Menglin Chen1, Can Liu1,2, Yulong An1
1Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University Kunming China linxunefu@126.com.
Nanoscale Advances
|September 22, 2022
Abstract:
Red, green, and blue CDs were successfully prepared by a solvothermal method using gallic acid as the raw material. The distinct optical features of these CDs are based on the differences in the size of their sp2-domains, which can be governed by reaction solvents.
Related Concept Videos
Photoluminescence: Applications
475
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
475
Photoluminescence: Fluorescence and Phosphorescence
2.2K
Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
A pair of electrons in a...
2.2K


