Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Aqueous Synthesis and Luminescent Characteristics of Cu:ZnSe Quantum Dots by Internal Doping Method

내부 도핑 법에 의한 Cu 도핑 Cu:ZnSe 양자점의 수계 합성 및 발광 특성

  • Back, Geum Ji (Department of Next Generation Applied Sciences, Sungshin Women's University) ;
  • Hong, Hyun Seon (Department of Next Generation Applied Sciences, Sungshin Women's University)
  • 백금지 (성신여자대학교 미래응용과학학과) ;
  • 홍현선 (성신여자대학교 미래응용과학학과)
  • Received : 2022.09.26
  • Accepted : 2022.10.27
  • Published : 2022.10.28
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Abstract

Cu-doped ZnSe quantum dots were successfully synthesized in an aqueous solution using an internal doping method. The effects of ligand type, CuSe synthesis temperature, and heating time on Cu-doped ZnSe synthesis were systematically investigated. Of MPA, GSH, TGA, and NAC used as ligands, MPA was the optimal ligand as determined by PL spectrum analysis. In addition, the emission wavelength was found to depend on the synthesis temperature of the internal doping core of CuSe. As the temperature increased, the doping of Cu2+ was enhanced, and the emission wavelength band was redshifted; accordingly, the emission peaks moved from blue to green (up to 550 nm). Thus, the synthesis of Cu:ZnSe using internal doping in aqueous solutions is a potential method for ecomanufacturing of color-tuned ZnSe quantum dots for display applications.

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