Researchers have developed new organic compounds characterized by higher modularity, stability, and efficiency that could be applicable for use in electronics or lighting. A proof-of-concept project has begun to verify that the compounds have the photoluminescence and electrochemical properties required for the manufacture of tunable organic LEDs (OLEDs) that can emit in the blue portion of the visible spectrum, thus applying lower voltages and achieving greater efficiency and longer life.
The prepared compounds have tunable electronic and physical characteristics that result in a cheap, scalable, and more convenient method for industrial purposes, and they are soluble in non-toxic solvents. Two families of pyrene-based nitrogen-donor compounds have been developed. The synthesis of these compounds involves four steps at most, which results in the generation of lower amounts of waste and the minimal use of auxiliary reagents and solvents.
The compounds can be prepared on a large scale and have proved to be very stable. They show strong emission in the blue portion of the electronic spectra and high quantum yields.