CdSe quantum dots using polyselenide precursor in soft chemical conditions

• Author(s): Garcia, Arlindo M. Fontes ; Cachetas, J. H. R. S. ; Oliveira, L. Filipa ; Coutinho, Paulo J. G.
• Date: 2012
• Persistent ID: http://hdl.handle.net/1822/21592
• Origin: RepositóriUM - Universidade do Minho
• Subject(s): CdSe; Quantum dots; Soft preparation; Polyselenide
• Document Type: Conference Object
• Language: English

Description

CdSe quantum dots were prepared by a simple microemulsion templating technique at low temperature and using common inorganic precursors. Size control was obtained by small variations in reactant concentrations. The chalcogenide source was a polyselenide solution. Narrow (30-40nm fwhm) band gap photoluminescence low defect level and high quantum yield were obtained.