Journal
JOURNAL OF APPLIED PHYSICS
Volume 116, Issue 9, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4894246
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Funding
- National Basic Research Program of China (973 Program) [2012CB921801]
- Science and Technology Department of JiangSu Province [BE2012163]
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We synthesized bicolor Mn-doped CuInS2 (CIS)/ZnS core/shell nanocrystals (NCs), in which Mn2+ ions and the CIS core were separated with a ZnS layer, and both Mn2+ ions and CIS cores could emit simultaneously. Transmission electron microscopy and powder X-ray diffraction measurements indicated the epitaxial growth of ZnS shell on the CuInS2 core, and electron paramagnetic resonance spectrum indicated that Mn2+ ions were on the lattice points of ZnS shell. By integrating these bicolor NCs with commercial InGaN-based blue-emitting diodes, tricolor white light-emitting diodes with color rendering index of 83 were obtained. (C) 2014 AIP Publishing LLC.
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