CdSe quantum dots using polyselenide precursor in soft chemical conditions

• Autor(es): Garcia, Arlindo M. Fontes ; Cachetas, J. H. R. S. ; Oliveira, L. Filipa ; Coutinho, Paulo J. G.
• Data: 2012
• Identificador Persistente: http://hdl.handle.net/1822/21592
• Origem: RepositóriUM - Universidade do Minho
• Assunto(s): CdSe; Quantum dots; Soft preparation; Polyselenide
• Tipo de Documento: Documento de conferência
• Idioma: Inglês

Descrição

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.