Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Luminescent Characteristics of CdSe Quantum Dot Phosphor Depending on Se Precursor Ratio

Se 전구체 함량 따른 CdSe 양자점 형광체의 발광특성

  • 엄누시아 (한국생산기술연구원 희소금속연구그룹) ;
  • 김택수 (한국생산기술연구원 희소금속연구그룹) ;
  • 좌용호 (한양대학교 기능성 나노재료 연구실) ;
  • 김범성 (한국생산기술연구원 희소금속연구그룹)
  • Received : 2012.11.06
  • Accepted : 2012.12.06
  • Published : 2012.12.28
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Abstract

The quantum dots (QD) have unique electrical and optical properties due to quantum dot confinement effect. The optical properties of QDs are decided by various synthesis conditions. In a prior QDs study, a study on the QDs size with synthesis condition such as synthesis time and temperature is being extensively researched. However, the research on QDs size with composition ratio has hitherto received scant attention. In order to evaluate the ratio dependence of CdSe crystal, synthesis ratio of Se precursor is changed from 16.7 mol%Se to 44 mol%Se. As the increasing Se ratio, the band gap was increased. This is caused by red shift of emission. We confirmed optical property of CdSe QDs with composition ratio.

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