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Received January 29, 2002
Accepted March 22, 2002
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Optical Properties and Characteristics of the CdSe Nanoparticles Synthesized at Room Temperature
Center for Advanced Functional Polymers, Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science & Technology, 373-1, Kusong-dong, Yusong-gu, Daejeon, 305-701, Korea 1Department of Chemical Engineering, Woosuk University, Chonbuk 565-701, Korea
oopark@kaist.ac.kr
Korean Journal of Chemical Engineering, May 2002, 19(3), 529-533(5), 10.1007/BF02697168
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Abstract
CdSe nanoparticles were synthesized by using colloidal methods at room temperature. Nanoparticle size was controlled by the amount of stabilizer, pH, and stabilizer type and was characterized by TEM and XRD. All the synthesized CdSe nanoparticles showed the quantum confinement effect. With increased amounts of mercaptoacetic acid as a stabilizer, the size of nanoparticles decreased. The UV-VIS absorption and photoluminescence (PL) properties could also be tailored by controlling particle size. The solubility in organic solvent and the PL characteristics were enhanced through surface capping by an organic passivator.
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