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      Dual-color emitting quantum-dot-quantum-well CdSe-ZnS heteronanocrystals hybridized on InGaN/GaN light emitting diodes for high-quality white light generation

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      Author(s)
      Nizamoglu, S.
      Mutlugun, E.
      Özel, T.
      Demir, Hilmi Volkan
      Date
      2008-03
      Source Title
      Applied Physics Letters
      Print ISSN
      0003-6951
      Electronic ISSN
      1077-3118
      Publisher
      AIP Publishing LLC
      Volume
      92
      Pages
      113110-1 - 113110-3
      Language
      English
      Type
      Article
      Item Usage Stats
      220
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      327
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      Abstract
      We report white light generation by hybridizing green-red emitting (CdSeZnS/CdSe (core) shell/ shell quantum-dot-quantum-well heteronanocrystals on blue InGaN/GaN light emitting diodes with the photometric properties of tristimulus coordinates (x, y) =(0.36, 0.30), luminous efficacy of optical radiation LE= 278 lm/W, correlated color temperature CCT= 3929 K, and color-rendering index CRI= 75.1. We present the photometric analysis and the quantum mechanical design of these dual-color emitting heteronanocrystals synthesized to achieve high-quality white light when hybridized on light emitting diodes. Using such multicolor emitting heteronanocrystals facilitates simple device implementation while providing good photometric properties
      Permalink
      http://hdl.handle.net/11693/48862
      Published Version (Please cite this version)
      https://doi.org/10.1063/1.2898892
      Collections
      • Department of Electrical and Electronics Engineering 4011
      • Department of Physics 2550
      • Institute of Materials Science and Nanotechnology (UNAM) 2258
      • Nanotechnology Research Center (NANOTAM) 1179
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