Strongly Fluorescent Quaternary Cu–In–Zn–S Nanocrystals Prepared from Cu1-xInS2 Nanocrystals by Partial Cation Exchange

Abstract

We report a high-yield, low cost synthesis route to colloidal Cu1-xInS2 nanocrystals with a tunable amount of Cu vacancies in the crystal lattice. These are then converted into quaternary Cu-In-Zn-S (CIZS)nanocrystals by partial exchange of Cu+ and In3+ cations with Zn2+ cations. The photoluminescence quantum yield of these CIZS nanocrystals could be tuned up to a record 80\%, depending on the amount of copper vacancies.

Keywords

NanocrystalPhotoluminescenceCopperQuantum yieldMaterials scienceCrystal structureColloidFluorescenceYield (engineering)Inorganic chemistryCrystallographyNanotechnologyPhysical chemistryChemistryMetallurgyOptoelectronicsPhysicsOptics

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Publication Info

Year: 2012
Type: article
Volume: 24
Issue: 12
Pages: 2400-2406
Citations: 317
Access: Closed

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APA Style

                            
                                
                                    Luca De Trizio, 
                                
                                    Mirko Prato, 
                                
                                    Alessandro Genovese
                                
                                et al.
                            
                            (2012). 
                            Strongly Fluorescent Quaternary Cu–In–Zn–S Nanocrystals Prepared from Cu<sub>1-<i>x</i></sub>InS<sub>2</sub> Nanocrystals by Partial Cation Exchange. 
                            Chemistry of Materials
                            , 24
                            (12)
                            , 2400-2406.
                            https://doi.org/10.1021/cm301211e
                        

Identifiers

DOI: 10.1021/cm301211e