Study of temperature- and time-resolved luminescence of CuInS2-ZnS quantum dots synthesized by one-pot method

Author

Wen-Jui Chiang ; Shih-Chang Shei ; Lung-Wei Huang

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Tainan, Tainan, Taiwan

fYear

2015

fDate

4-6 May 2015

Firstpage

1

Lastpage

3

Abstract

This paper reports a simple route for the synthesis of CuInS₂/ZnS quantum dots (QDs) using a one-pot method. First, the CuInS₂ core QDs were synthesized in the non-coordinating octadecene (ODE) solvent using copper chlorine, indium chlorine and dodecanethiol (DDT) as sources. CuInS₂ QDs with diameter of 2~5 nm were obtained by tuning the reaction temperatures and times. Furthermore, CuInS₂/ZnS core/shell QDs was synthesized, which can prevent the CuInS₂ quantum dots oxidized and improve their photoluminescnce with the coating of ZnS shell.

Keywords

II-VI semiconductors; coatings; copper compounds; core-shell nanostructures; indium compounds; nanocomposites; nanofabrication; oxidation; photoluminescence; semiconductor quantum dots; ternary semiconductors; time resolved spectra; wide band gap semiconductors; zinc compounds; CuInS₂-ZnS; coating; copper chlorine; copper indium sulfide-zinc sulfide quantum dots; core-shell quantum dots; dodecanethiol; indium chlorine; noncoordinating octadecene solvent; one-pot method; oxidation; reaction temperature; reaction times; size 2 nm to 5 nm; temperature-resolved photoluminescence; time-resolved photoluminescence; zinc sulfide shell; Absorption; II-VI semiconductor materials; Quantum dots; X-ray diffraction; X-ray scattering; Zinc compounds; CuInS2/ZnS; ODE; quantum dots (QDs);

fLanguage

English

Publisher

ieee

Conference_Titel

Next-Generation Electronics (ISNE), 2015 International Symposium on

Conference_Location

Taipei

Type

conf

DOI

10.1109/ISNE.2015.7131954

Filename

7131954