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首页> 外文期刊>Solid-State Electronics >Tuning the spectrometric properties of white light by surface plasmon effect using Ag nanoparticles in a colour converting light-emitting diode
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Tuning the spectrometric properties of white light by surface plasmon effect using Ag nanoparticles in a colour converting light-emitting diode

机译:在彩色转换发光二极管中使用Ag纳米粒子通过表面等离子体激元效应调节白光的光谱性质

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摘要

We report on the spectral tunability of white light by localized surface plasmon (LSP) effect in a colour converting hybrid device made of CdSe/ZnS quantum dots ((IDs) integrated on InGaN/GaN blue light-emitting diodes (LEDs). Silver (Ag) nanoparticles (NPs) are mixed with QDs for generating LSP effect. When the plasmon absorption of Ag NPs is synchronized to the QW emission at 448 nm, the NPs selectively absorb the blue light and subsequently enhance the QD emission. Using this energy transfer scheme, the (x,y) chromaticity coordinates of the hybrid white LED was tuned from (0.32,0.17) to (0.43,0.26), and thereby generated warm white light emission with correlated colour temperature (CCT) around 1800K. Moreover, a 47% enhancement in the external quantum efficiency (EQE) was realized.
机译:我们报告了由CdSe / ZnS量子点((IDs)集成在InGaN / GaN蓝色发光二极管(LED)上)制成的彩色转换混合器件中通过局部表面等离子体激元(LSP)效应产生的白光的光谱可调性。将Ag)纳米颗粒(NPs)与量子点混合以产生LSP效应,当Ag NPs的等离子体吸收与448 nm的QW发射同步时,NPs选择性地吸收蓝光并随后增强QD发射。方案中,将混合型白色LED的(x,y)色度坐标从(0.32,0.17)调整为(0.43,0.26),从而生成具有相关色温(CCT)约1800K的暖白色光。外部量子效率(EQE)提高了47%。

著录项

  • 来源
    《Solid-State Electronics》 |2011年第1期|p.90-92|共3页
  • 作者单位

    Semiconductor Physics Research Centre, School of Semiconductor and Chemical Engineering, Chonbuk National University, Chonju 561-756, South Korea;

    Semiconductor Physics Research Centre, School of Semiconductor and Chemical Engineering, Chonbuk National University, Chonju 561-756, South Korea;

    Semiconductor Physics Research Centre, School of Semiconductor and Chemical Engineering, Chonbuk National University, Chonju 561-756, South Korea;

    Semiconductor Physics Research Centre, School of Semiconductor and Chemical Engineering, Chonbuk National University, Chonju 561-756, South Korea;

    Semiconductor Physics Research Centre, School of Semiconductor and Chemical Engineering, Chonbuk National University, Chonju 561-756, South Korea;

    Semiconductor Physics Research Centre, School of Semiconductor and Chemical Engineering, Chonbuk National University, Chonju 561-756, South Korea;

    Semiconductor Physics Research Centre, School of Semiconductor and Chemical Engineering, Chonbuk National University, Chonju 561-756, South Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ingan/gan light-emitting diode; quantum dots; white light emission; surface plasmon effect;

    机译:铟/甘氨酸发光二极管;量子点;白光发射;表面等离子体激元效应;

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