Single Carbon Dot Emits Multiple Wavelengths of Light

Researchers from the Korea Advanced Institute of Science and Technology (KAIST) have synthesized a collection of nanoparticles known as carbon dots, capable of emitting multiple wavelengths of light from a single particle. The team discovered that the properties of light emitted by the carbon dot are dependent upon the dispersion of the carbon dots, or the interparticle distance between each dot. The discovery could allow researchers to understand how to control these carbon dots and create new, environmentally responsible displays, lighting, and sensing technology. Photoluminescence change of dual-color-emissive carbon dots (CDs) depending on their concentration. Blue and red emissions show different contributions with different...