Synthesis of Highly Luminescent CdTe/CdS Quantum Dots in Aqueous Solution for biological imaging applications

摘要：

Recently, Semiconductor quantum dots (QDs) have been synthesized in organic phase and transferred to aqueous solution by functionalizing their surface with different shell. Such as polymers, short-chain thiol ligand, or phospholipid micelles. However, those procedures may decrease their quantum yield and may hinder their biomedical applications or affect their optical properties. In this paper, We prepare one-pot synthesis of 3-mercaptopropionic acid stabilized CdTe/CdS QDs in aqueous solution. This core/shell structure QDs exhibite a significant red shift of emission and excitation peaks with increase of QDs size. Transmission electron microscopy (TEM), Optical spectroscopy photoluminescence (PL) spectra and confocal revealed that core/shell structures enhanced QDs PL efficiency and stability.

作者: Liwei Liu Hongxing Cai siyi Hu Wangyue Xihe Zhang

作者单位: School of Science, Changchun University of Science and technology, Changchun 130022, Jilin, China

会议类型: 国际会议

会议名称: The First International Conference on Manipulation,Manufacturing and Measurement on the Nanoscale(第一届3M-NANO国际会议)

会议地点: 长春

会议语种:英文

页码: 1-4

在线出版日期: 2011-08-29（万方平台首次上网日期，不代表论文的发表时间）