Researchers develop novel method to fabricate perovskite-based light-emitting diodes using quantum confinement

Researchers from The Hong Kong University of Science and Technology, Heilongjiang University, City University of Hong Kong and Sun Yat-sen University have developed a novel technique to fabricate perovskite-based light-emitting diodes using quantum confinement.

According to theory, by adjusting the compositions of the halide being used, i.e., iodine, bromine, and chlorine, the color of the emission may be fine-tuned. Nevertheless, color instability caused by migration of ions and separation in blended halides impedes the future development of perovskite-based LEDs, particularly blue perovskite-based LEDs, which require significantly higher voltages for proper operation. A potential strategy for achieving color controllability in perovskite-based LEDs is to use perovskite-based nanostructures which utilize quantum confinement.

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