The study of CdSe colloidal quantum dots synthesized in aqueous and organic media

16th Russian Youth Conference on Physics and Astronomy

物理学;天文学

Mikhailov, I.I.^1 ; Tarasov, S.A.^1 ; Solomonov, A.V.^1 ; Aleksandrova, O.A.^1 ; Matyushkin, L.B.^1 ; Mazing, D.S.^1

Saint Petersburg Electrotechnical University lETI (ETU), Russia^1

关键词: Colloidal quantum dots;    Defect formation;    Luminescence color;    Luminescence peak;    Luminescence quantum yields;    Nanoparticle growths;    Organic media;    Organic medium;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/572/1/012029/pdf
DOI  :  10.1088/1742-6596/572/1/012029

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

The samples of CdSe colloidal quantum dots (CQDs) synthesized in aqueous and organic media are studied. The possibility of luminescence peak position control depending on nanoparticle growth process is demonstrated. The samples synthesized in organic medium revealed the luminescence color variation effect with nanoparticle growth. The relation of this effect with processes of nucleation and defect formation in nanoparticles is considered. The CQDs of CdSe coated with CdS shell are fabricated. The use of inorganic shell can provide a double increase of the luminescence quantum yield.