Organic phosphorescent crystals: A new light-emitting material

Pure organic compounds that glow in jewel tones could potentially lead to cheaper, more efficient and flexible display screens, among other applications.
Organic phosphorescent crystals: A new light-emitting material

Nature Chemistry, March 2011

Michigan Engineering researcher Jinsang Kim and his colleagues have developed a new class of material that shines with phosphorescence---a property that has previously been seen only in non-organic compounds or organometallics. Kim is an an associate professor of materials science and engineering, chemical engineering, macromolecular science and engineering, and biomedical engineering.

The researchers made metal-free organic crystals that are white in visible light and radiate blue, green, yellow and orange when triggered by ultraviolet light. By changing the materials' chemical composition, the researchers can make them emit different colors.

The new luminous materials, or phosphors, could improve upon current organic light-emitting diodes (OLEDs) and solid-state lighting. This work is cover story in the March 2011 Nature Chemistry. Read the full story.


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