dc.contributor.authorXing, Jun
dc.contributor.authorYan, Fei
dc.contributor.authorZhao, Yawen
dc.contributor.authorChen, Shi
dc.contributor.authorYu, Huakang
dc.contributor.authorZhang, Qing
dc.contributor.authorZeng, Rongguang
dc.contributor.authorDemir, Hilmi Volkan
dc.contributor.authorSun, Xiaowei
dc.contributor.authorHuan, Alfred
dc.contributor.authorXiong, Qihua
dc.identifier.citationXing, J., Yan, F., Zhao, Y., Chen, S., Yu, H., Zhang, Q., et al. (2016). High-Efficiency Light-Emitting Diodes of Organometal Halide Perovskite Amorphous Nanoparticles. ACS Nano, 10(7), 6623-6630.en_US
dc.description.abstractOrganometal halide perovskite has recently emerged as a very promising family of materials with augmented performance in electronic and optoelectronic applications including photovoltaic devices, photodetectors, and light-emitting diodes. Herein, we propose and demonstrate facile solution synthesis of a series of colloidal organometal halide perovskite CH3NH3PbX3 (X = halides) nanoparticles with amorphous structure, which exhibit high quantum yield and tunable emission from ultraviolet to near-infrared. The growth mechanism and photoluminescence properties of the perovskite amorphous nanoparticles were studied in detail. A high-efficiency green-light-emitting diode based on amorphous CH3NH3PbBr3 nanoparticles was demonstrated. The perovskite amorphous nanoparticle-based light-emitting diode shows a maximum luminous efficiency of 11.49 cdA-1, a power efficiency of 7.84 lmW-1, and an external quantum efficiency of 3.8%, which is 3.5 times higher than that of the best colloidal perovskite quantum-dot-based light-emitting diodes previously reported. Our findings indicate the great potential of colloidal perovskite amorphous nanoparticles in light-emitting devices.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.description.sponsorshipASTAR (Agency for Sci., Tech. and Research, S’pore)en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.relation.ispartofseriesACS Nanoen_US
dc.rights© 2016 American Chemical Society.en_US
dc.subjectLight-emitting Diodesen_US
dc.titleHigh-Efficiency Light-Emitting Diodes of Organometal Halide Perovskite Amorphous Nanoparticlesen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.contributor.organizationThe Photonics Instituteen_US
dc.contributor.organizationLUMINOUS! Centre of Excellence for Semiconductor Lighting and Displaysen_US
dc.contributor.organizationNanoelectronics Centre of Excellenceen_US

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