A High-Yield Synthesis of Chalcopyrite CuInS₂ Nanoparticles with Exceptional Size Control

Authors

Aaron Thurber, Boise State UniversityFollow
Alex Punnoose, Boise State UniversityFollow

Document Type

Article

Publication Date

12-29-2009

Abstract

We report high-yield and efficient size-controlled syntheses of Chalcopyrite CuInS₂ nanoparticles by decomposing molecular single source precursors (SSPs) via microwave irradiation in the presence of 1,2-ethanedithiol at reaction temperatures as low as 100◦C and times as short as 30 minutes. The nanoparticles sizes were 1.8nm to 10.8 nm as reaction temperatures were varied from 100◦C to 200◦C with the bandgaps from 2.71 eV to 1.28 eV with good size control and high yields (64%–95%). The resulting nanoparticles were analyzed by XRD, UV-Vis, ICP-OES, XPS, SEM, EDS, and HRTEM. Titration studies by ¹H NMR using SSP 1 with 1,2-ethanedithiol and benzyl mercaptan were conducted to elucidate the formation of Chalcopyrite CuInS2 nanoparticles.

Copyright Statement

This document was originally published by Hindawi in Journal of Nanomaterials. Copyright restrictions may apply. DOI: 10.1155/2009/748567

Publication Information

Thurber, Aaron and Punnoose, Alex. (2009). "A High-Yield Synthesis of Chalcopyrite CuInS₂ Nanoparticles with Exceptional Size Control". Journal of Nanomaterials, 2009. http://dx.doi.org/10.1155/2009/748567