 In this study, researchers developed a new method to improve the performance of quantum-dot light emitting diodes, cleds, which use quantum dots made up of multiple layers of materials. The researchers used a technique called bromide decoration to reduce the number of defects in the quantum dot surfaces, which improved their ability to emit light. This resulted in a significant increase in the quantum dots photoluminescence quantum yield, PLQI, the amount of light produced per unit of energy input, from 39.7% to 86.2%, as well as a substantial boost in the device's external quantum efficiency, EQE, from 0.74% to 5.46%. Additionally, the turn-on voltage of the device was reduced from 6.7V to 5.9V. These results demonstrate the effectiveness of the bromide decoration technique in improving the performance of cleds. This article was authored by Zhishuai Xing, Zhenwei Ren, Wen Linxia, and others. We are article.tv, links in the description below.