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http://dx.doi.org/10.4150/KPMI.2012.19.6.442

Luminescent Characteristics of CdSe Quantum Dot Phosphor Depending on Se Precursor Ratio  

Eom, Nu Si A (Korea Institute of Industrial Technology)
Kim, Taek-Soo (Korea Institute of Industrial Technology)
Choa, Yong-Ho (Functional Nano Material Research Lab., Hanyang University)
Kim, Bum Sung (Korea Institute of Industrial Technology)
Publication Information
Journal of Powder Materials / v.19, no.6, 2012 , pp. 442-445 More about this Journal
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.
Keywords
Quantum dot (QD); CdSe; Photoluminescence;
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Times Cited By KSCI : 3  (Citation Analysis)
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