한국분말재료학회지 (Journal of Powder Materials)

  • 제31권3호
  • /
  • Pages.226-235
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  • 2024
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  • 2799-8525(pISSN)
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  • 2799-8681(eISSN)
한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
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Bandgap Tuning and Quenching Effects of In(Zn)P@ZnSe@ZnS Quantum Dots

  • Sang Yeon Lee (Nano-composite Materials Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Su Hyun Park (Nano-composite Materials Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Gyungsu Byun (Department of Information and Communication Eng., Inha University) ;
  • Chang-Yeoul Kim (Nano-composite Materials Center, Korea Institute of Ceramic Engineering and Technology)
  • 투고 : 2023.10.24
  • 심사 : 2024.04.13
  • 발행 : 2024.06.28
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초록

InP quantum dots (QDs) have attracted researchers' interest due to their applicability in quantum dot light-emitting displays (QLED) or biomarkers for detecting cancers or viruses. The surface or interface control of InP QD core/ shell has substantially increased quantum efficiency, with a quantum yield of 100% reached by introducing HF to inhibit oxide generation. In this study, we focused on the control of bandgap energy of quantum dots by changing the Zn/(In+Zn) ratio in the In(Zn)P core. Zinc incorporation can change the photoluminescent light colors of green, yellow, orange, and red. Diluting a solution of as-synthesized QDs by more than 100 times did not show any quenching effects by the Förster resonance energy transfer phenomenon between neighboring QDs.

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과제정보

The authors are appreciated for the financial support by the project of nano-material development of Korean national research foundation (NRF-2021M3H4A6A03103774) and the strategic material development program of Korea Institute of Ceramic Engineering and Technology (KPP21003).

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