文献类型：期刊文献

英文题名：Noninjection Facile Synthesis of Gram-Scale Highly Luminescent CdSe Multipod Nanocrystals

作者：Zhang, Wenjin[1];Jin, Chan[2];Yang, Yongji[2];Zhong, Xinhua[1]

机构：[1]E China Univ Sci & Technol, Dept Chem, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]Second Mil Med Univ, Dept Biophys, Shanghai 200433, Peoples R China

年份：2012

卷号：51

期号：1

起止页码：531

外文期刊名：INORGANIC CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000298712000068)】；

基金：We thank the National Natural Science Foundation of China (No. 21175043), the Science and Technology Commission of Shanghai Municipality (11JC1403100), the Fundamental Research Funds for the Central Universities, and the Program for Professor of Special Appointment at Shanghai Institutions of Higher Learning for financial supports.

语种：英文

摘要：Nearly all reported approaches for synthesis of high quality CdSe nanocrystals (NCs) involved two steps of preparation of Cd or Se stock solution in advance and then mixing the two reactants via hot-injection in high temperature. In this,manuscript, Gram-scale CdSe multipod NCs were facilely synthesized in a noninjection route with the use of CdO and Se powder directly as reactants in paraffin reaction medium containing small amount of oleic acid and trioctylphosphine. The influence of various experimental variables, including reaction temperature, nature and amount of surfactants, Cd-to-Se ratio, and the nature of reactants, on the morphology of the obtained CdSe NCs have been systematically investigated. After deposition of ZnS shell around the CdSe multipod NCs, the PL QY of the obtained CdSe/ZnS can be up to 85%. The reported noninjection preparation approach can satisfy the requirement of industrial production bearing the advantage of low-cost, reproducible, and scalable. Furthermore, this facile noninjection strategy provides a versatile route to large-scale preparation of other semiconductor NCs with multipod or other morphologies.