Bicolor Mn-doped CuInS{sub 2}/ZnS core/shell nanocrystals for white light-emitting diode with high color rendering index

Journal Article · Sun Sep 07 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4894246· OSTI ID:22314400

Huang, Bo; Dai, Qian; Zhang, Huichao; Liao, Chen; Cui, Yiping; Zhang, Jiayu ^[1]; Zhuo, Ningze; Jiang, Qingsong; Shi, Fenghua; Wang, Haibo ^[2]

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1. Advanced Photonic Center, Southeast University, Nanjing 210096 (China)
2. Research Institute of Electric Light Source Materials, Nanjing University of Technology, Nanjing 210015 (China)

We synthesized bicolor Mn-doped CuInS{sub 2} (CIS)/ZnS core/shell nanocrystals (NCs), in which Mn{sup 2+} ions and the CIS core were separated with a ZnS layer, and both Mn{sup 2+} 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 CuInS{sub 2} core, and electron paramagnetic resonance spectrum indicated that Mn{sup 2+} 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.

• OSTI ID: 22314400
• Journal Information: Journal of Applied Physics, Vol. 116, Issue 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COLOR
COPPER SULFIDES
DOPED MATERIALS
ELECTRON SPIN RESONANCE
EMISSION
EPITAXY
INDIUM SULFIDES
LIGHT EMITTING DIODES
MANGANESE IONS
NANOSTRUCTURES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
ZINC SULFIDES