Journal of Information Display

  • 제13권2호
  • /
  • Pages.91-95
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  • 2012
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  • 1598-0316(pISSN)
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  • 2158-1606(eISSN)
한국정보디스플레이학회 (The Korean Infomation Display Society)
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InP/ZnSe/ZnS: A Novel Multishell System for InP Quantum Dots for Improved Luminescence Efficiency and Its application in a Light-Emitting Device

  • Ippen, Christian (Functional Materials and Devices, Fraunhofer Institute for Applied Polymer Research) ;
  • Greco, Tonino (Functional Materials and Devices, Fraunhofer Institute for Applied Polymer Research) ;
  • Wedel, Armin (Functional Materials and Devices, Fraunhofer Institute for Applied Polymer Research)
  • 투고 : 2011.12.30
  • 심사 : 2012.03.06
  • 발행 : 2012.06.30
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초록

Indium phosphide (InP) quantum dots (QDs) are considered alternatives to Cd-containing QDs for application in light-emitting devices. The multishell coating with ZnSe/ZnS was shown to improve the photoluminescence quantum yield (QY) of InP QDs more strongly than the conventional ZnS shell coating. Structural proof for this system was provided by X-ray diffraction and transmission electron microscopy. QY values in the range of 50-70% along with peak widths of 45-50 nm can be routinely achieved, making the optical performance of InP/ZnSe/ZnS QDs comparable to that of Cd-based QDs. The fabrication of a working electroluminescent light-emitting device employing the reported material demonstrated the feasibility of the desired application.

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참고문헌

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피인용 문헌

  1. Large-scale synthesis of high quality InP quantum dots in a continuous flow-reactor under supercritical conditions vol.26, pp.8, 2012, https://doi.org/10.1088/0957-4484/26/8/085604