Researchers from Florida State University and the National High Magnetic Field Laboratory in Tallahassee, Florida, have developed a new way to create blue light from metal halide perovskites, a class of materials that shows enormous potential for optoelectronic devices, including solar cells, light-emitting diodes (LEDs) and lasers. First, the researchers created nanoplatelets, which are nanomaterials with only a few unit cells in thickness, and then they coated them with a multifunctional organic sulfate, which caused the nanoplatelets to emit efficient and stable blue light.
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