A simple route to producing electroluminescent colloidal particles that can be designed to produce a wide range of emission colors and that can be potentially converted into printable inks is presented. This approach utilizes a miniemulsion fabrication route and exploits the concept that the particles in a colloidally-based OLED can be viewed as individual "particle-devices". EL dye components were sequestered in particles that prevented any interparticle energy transfer. Red, green, and blue emitting particles were synthesized and converted into devices that exhibited emissions that spanned a large color spectrum.
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