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 E-Mail IMAGE: Researchers at Linköping University, Sweden, have developed efficient blue light-emitting diodes based on halide perovskites. view more  Credit: Thor Balkhed Researchers at Linköping University, Sweden, have developed efficient blue light-emitting diodes based on halide perovskites. We are very excited about this breakthrough , says Feng Gao, professor at Linköping University. The new LEDs may open the way to cheap and energy-efficient illumination. Illumination is responsible for approximately 20% of global electricity consumption, a figure that could be reduced to 5% if all light sources consisted of light-emitting diodes (LEDs). The blue-white LEDs currently in use, however, need complicated manufacturing methods and are expensive, which makes it more difficult to achieve a global transition.

United kingdomFeng gaoGreat britainMax karlssonWeidong xuSwedish energy agencyNature communicationsSwedish research councilDepartment of physicsSwedish strategic research areaAdvanced functional materialsChemistry physics materials sciencesSuperconductors semiconductorsஒன்றுபட்டது கிஂக்டம்ஃபெங் கொநன்று பிரிட்டன்