%0 Journal Article
%T Preparation and Luminescent Properties of CdSe and Core-Shell CdSe/CdS Quantum Dots in Aqueous Solution<br>水相中CdSe与核/壳CdSe/CdS量子点的制备与发光特性研究
%A TANG Ai-Wei
%A TENG Feng
%A GAO Yin-Hao
%A LIANG Chun-Jun
%A WANG Yong-Sheng
%A <br>唐爱伟
%J 无机材料学报
%D 2006
%I Science Press
%X CdSe and core/shell CdSe/CdS quantum dots (QDs) were prepared in aqueous solution by using mercapto-acetate acid as stabilizer.Their luminescence characterization was studied by UV-Vis absorption and emission spectra. The nanocrystals were characterized by X-ray powder diffraction (XRD),transmission electron microscope (TEM) and X-ray photoelectron spectroscopy (XPS), which were used to characterized their structure, shape and composition. The results indicated that the quantum dots synthesized with this method possessed better dispersibility, as well as the intensity of luminescence of the quantum dots modified the surface was enhanced greatly and the red shift was shown in the emission and absorption spectra. The position of absorption peak was different with the different quantum dots' sizes.
%K quantum dots
%K aqueous solution
%K preparation
%K characterization<br>量子点
%K 水相
%K 制备
%K 表征
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=DDAAAE8026DB40A3&yid=37904DC365DD7266&vid=659D3B06EBF534A7&iid=0B39A22176CE99FB&sid=3224764AEAFCF8C2&eid=A5B34D9E8FDA439A&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=8&reference_num=22