News Column

New Quantum Dots Findings from J.W. Lee and Colleagues Discussed

January 28, 2014

By a News Reporter-Staff News Editor at Physics Week -- New research on Quantum Dots is the subject of a report. According to news reporting out of Inchon, South Korea, by VerticalNews editors, research stated, "Quantum-dot nanocrystals have particular optical properties due to the quantum confinement effect and the surface effect. This study focuses on the effect of surface conditions on the emission from quantum dots."

Our news journalists obtained a quote from the research, "The quantum dots prepared with 1-hexadecylamine (HDA) in the synthesis show strong emission while the quantum dots prepared without HDA show weak emission, as well as emission from surface energy traps. The comparison of the X-ray patterns of these two sets of quantum dots reveals that HDA forms a layer on the surface of quantum dot during the synthesis."

According to the news editors, the research concluded: "This surface passivation with a layer of HDA reduces surface energy traps, therefore the emission from surface trap levels is suppressed in the quantum dots synthesized with HDA."

For more information on this research see: Effect of organic materials used in the synthesis on the emission from CdSe quantum dots. Journal of the Korean Physical Society, 2013;63(12):2301-2304. Journal of the Korean Physical Society can be contacted at: Korean Physical Soc, 635-4, Yuksam-Dong, Kangnam-Ku, Seoul 135-703, South Korea. (Springer -; Journal of the Korean Physical Society -

Our news journalists report that additional information may be obtained by contacting J.W. Lee, SK Hynix, Inchon 467734, South Korea. Additional authors for this research include H.S. Yang, K.S. Hong and S.M. Kim.

Keywords for this news article include: Asia, Inchon, South Korea, Quantum Dots, Nanotechnology, Quantum Physics, Emerging Technologies

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Source: Physics Week

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