Preparation of ZnSe Nanocrystals Using Water-in-Oil Microemulsions
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概要
- 論文の詳細を見る
ZnSe nanocrystals were prepared using a safe and simple synthetic method by employing a sodium bis(2-ethylhexyl) sulfosuccinate (AOT)/water/oil microemulsion system with aqueous ZnSO4 and Se2- solutions, and characterized by X-ray diffraction (XRD) analysis, photoluminescence (PL) spectroscopy, and transmission electron microscopy (TEM). To control the diameter of nanocrystals in the quantum confinement region, the synthesis was performed with different oil phases (heptane and cyclohexane) and various water-to-surfactant ratios, $W$ ([H2O]/[surfactant]). Cubic zinc blende ZnSe nanocrystals were synthesized and their size was controlled in the range from 2.5 to 17 nm. The maximum PL efficiency was 14% for the smallest ZnSe nanocrystal.
- 2010-06-25
著者
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Park Sang
Department Of Anatomy Seoul National University College Of Medicine
-
Kim Jong
Department Of Agricultural Bio-resources National Academy Of Agricultural Science Rural Development
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Kim Hyun
Department Of Agricultural Bio-resources National Academy Of Agricultural Science Rural Development
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Jong Sung
Department of Chemical Engineering, Kyungwon University, Seongnam 461-701, Korea
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Kim Hyun
Department of Advanced Material Engineering, Daejeon University, Daejeon 300-716, Republic of Korea
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Sang Joon
Department of Chemical Engineering, Kyungwon University, Seongnam 461-701, Korea
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Hyun Soo
Department of Chemical Engineering, Kyungwon University, Seongnam 461-701, Korea
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