Synthesis and photoluminescence properties of CTAB-encapsulated semiconductor quantum dots

DAI Dejian; GUO Xiaoxiao; FAN Jiyang

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Synthesis and photoluminescence properties of CTAB-encapsulated semiconductor quantum dots

DAI Dejian,GUO Xiaoxiao,FAN Jiyang * #

Department of Physics, Southeast University, Nanjing 211189

*Correspondence author

#Submitted by

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Funding: the Research Fund for the Doctoral Program of Higher Education （No.No. 20090092120032）, National Science Foundation of Jiangsu Province of China （No.No. BK2010421）, National Natural Science Foundation of China （No.No. 11074037）

Opened online:14 December 2012

Accepted by: none

Citation: DAI Dejian,GUO Xiaoxiao,FAN Jiyang.Synthesis and photoluminescence properties of CTAB-encapsulated semiconductor quantum dots[OL]. [14 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4501647

The multilayered cetyltrimethylammonium bromide (CTAB) vesicle centered on one or a couple of colloidal SiC quantum dots (QDs) was synthesized. The Coulomb attraction force between the negatively charged surface of the QD and the positively charged ionized CTAB molecules drives formation of the novel multilayered vesicles via self-assembly. The CTAB vesicles show near-UV photoluminescence which is enhanced with respect to the individual CTAB molecules. This novel synthesis method can be generalized to synthesize a large group of diverse QD/vesicle core/shell structures.

Keywords:photoluminescence; quantum dot; vesicle

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