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Credit: Figure source: DOI number: 10.1038/s41467-021-21522-8 Energy-efficient light-emitting diodes (LEDs) have been used in our everyday life for many decades. But the quest for better LEDs, offering both lower costs and brighter colours, has recently drawn scientists to a material called perovskite. A recent joint-research project co-led by the scientist from City University of Hong Kong (CityU) has now developed a 2D perovskite material for the most efficient LEDs. From household lighting to mobile phone displays, from pinpoint lighting needed for endoscopy procedures to light source to grow vegetables in Space, LEDs are everywhere. Yet current high-quality LEDs still need to be processed at high temperatures and using elaborated deposition technologies which make their production cost expensive.

Stephenv kershawLi yunguoZhang xiaoyuAndrey rogachYang xuyongKong lingmeiNature communicationsShanghai universityUniversity of scienceResearch fellow in professor rogachProfessor at jilin universityChinese academy of sciencesCity university of hong kongWuhan universityNankai universityCroucher foundation