Dual Emissive Manganese and Copper Co-Doped Zn-In-S Quantum Dots as a Single Color-Converter for High Color Rendering White-Light-Emitting Diodes

	Dual Emissive Manganese and Copper Co-Doped Zn-In-S Quantum Dots as a Single Color-Converter for High Color Rendering White-Light-Emitting Diodes
	Yuan, X.; R. X. Ma; W. J. Zhang; J. Hua; X. D. Meng; X. H. Zhong; J. H. Zhang; J. L. Zhao and H. B. Li
	2015
发表期刊	Acs Applied Materials & Interfaces
卷号	7 期号:16 页码:8659-8666
摘要	Novel white light emitting diodes (LEDs) with environmentally friendly dual emissive quantum dots (QDs) as single color-converters are one of the most promising high-quality solid-state lighting sources for meeting the growing global demand for resource sustainability. A facile method was developed for the synthesis of the bright greenred-emitting Mn and Cu codoped ZnInS QDs with an absorption bangdgap of 2.56 eV (485 nm), a large Stokes shift of 150 nm, and high emission quantum yield up to 75%, which were suitable for warm white LEDs based on blue GaN chips. The wide photoluminescence (PL) spectra composed of Cu-related green and Mn-related red emissions in the codoped QDs could be controlled by varying the doping concentrations of Mn and Cu ions. The energy transfer processes in Mn and Cu codoped QDs were proposed on the basis of the changes in PL intensity and lifetime measured by means of steady-state and time-resolved PL spectra. By integrating these bicolor QDs with commercial GaN-based blue LEDs, the as-fabricated tricolor white LEDs showed bright natural white light with a color rendering index of 95, luminous efficacy of 73.2 lm/W, and color temperature of 5092 K. These results indicated that (Mn,Cu):ZnInS/ZnS QDs could be used as a single color-converting material for the next generation of solid-state lighting.
收录类别	SCI ; EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/55508
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Yuan, X.,R. X. Ma,W. J. Zhang,et al. Dual Emissive Manganese and Copper Co-Doped Zn-In-S Quantum Dots as a Single Color-Converter for High Color Rendering White-Light-Emitting Diodes[J]. Acs Applied Materials & Interfaces,2015,7(16):8659-8666.
APA	Yuan, X..,R. X. Ma.,W. J. Zhang.,J. Hua.,X. D. Meng.,...&J. L. Zhao and H. B. Li.(2015).Dual Emissive Manganese and Copper Co-Doped Zn-In-S Quantum Dots as a Single Color-Converter for High Color Rendering White-Light-Emitting Diodes.Acs Applied Materials & Interfaces,7(16),8659-8666.
MLA	Yuan, X.,et al."Dual Emissive Manganese and Copper Co-Doped Zn-In-S Quantum Dots as a Single Color-Converter for High Color Rendering White-Light-Emitting Diodes".Acs Applied Materials & Interfaces 7.16(2015):8659-8666.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Yuan-2015-Dual Emiss（433KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载