Publication

Highly Efficient Perovskite-Quantum-Dot Light-Emitting Diodes by Surface Engineering

​Highly Efficient Perovskite-Quantum-Dot Light-Emitting Diodes by Surface Engineering
Jun Pan, Li Na Quan, Yongbiao Zhao, Wei Peng, Banavoth Murali, Smritakshi P. Sarmah, Mingjian Yuan, Lutfan Sinatra, Noktan M. Alyami, Jiakai Liu, Emre Yassitepe, Zhenyu Yang, Oleksandr Voznyy, Riccardo Comin, Mohamed N. Hedhili, Omar F. Mohammed, Zheng Hong Lu, Dong Ha Kim, Edward H. Sargent, Osman M. Bakr
Advanced Materials, (2016)
Jun Pan, Li Na Quan, Yongbiao Zhao, Wei Peng, Banavoth Murali, Smritakshi P. Sarmah, Mingjian Yuan, Lutfan Sinatra, Noktan M. Alyami, Jiakai Liu, Emre Yassitepe, Zhenyu Yang, Oleksandr Voznyy, Riccardo Comin, Mohamed N. Hedhili, Omar F. Mohammed, Zheng Ho
CsPbBr3;external quantum efficiency;light-emitting diodes;perovskite;quantum dots
2016



A two-step ligand-exchange strategy is developed, in which the long-carbon- chain ligands on all-inorganic perovskite (CsPbX3, X = Br, Cl) quantum dots (QDs) with halide-ion-pair ligands. Green and blue light-emitting diodes made from the halide-ion-pair-capped quantum dots exhibit high external quantum efficiencies compared with the untreated QDs.

DOI: 10.1002/adma.201600784