Preparation of cadmium selenide colloidal quantum dots in non-coordinating solvent octadecene

17th Russian Youth Conference on Physics and Astronomy

物理学;天文学

Mazing, D.S.^1 ; Brovko, A.M.^1 ; Matyushkin, L.B.^1 ; Aleksandrova, O.A.^1 ; Moshnikov, V.A.^1

Saint Petersburg Electrotechnical University LETI, ul. Prof. Popova, 5, 197376, Russia^1

关键词: Absorption and photoluminescence;    Cadmium selenides;    Colloidal quantum dots;    Coordinating solvents;    Nanocrystal growth;    Precursor injection;    Precursor solutions;    Selenium powder;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/661/1/012033/pdf
DOI  :  10.1088/1742-6596/661/1/012033

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

Nearly monodisperse cadmium selenide quantum dots (QDs) were synthesized in non-coordinating solvent octadecene through phosphine-free method using oleic acid as surfactant. Selenium powder suspension in octadecene obtained by ultrasound processing was used as one of precursor solutions. Influence of multiple selenium precursor injections on nanocrystal growth process was investigated. Nanoparticles were characterized by means of absorption and photoluminescence spectroscopies.