Paper Details

Non-toxic CuInS2 nanocrystals as the visible-near infrared light emitting materials has attracted aconsiderable attention in a various technological fields such as LED, bioimaging, etc., In this investigation, CuInS2nanocrystals were successfully synthesized through hot-injection technique employing reactions of copper (II) acetateand indium (III) chloride with sulfur powder (S-OLA) or dodecanethiol (DDT) as a source of sulfur. Here, the reactionwas carried out using two different solvents medium, such as diphenylether (DPE) as a coordinating solvent and 1-octadecene (ODE) as a non-coordinating solvent. Oleylamine (OLA) a capping agent is the only interacting with thestarting precursor materials (Cu+ and In3+). The precursors play a major role on the seed formation and growth of thenanocrystals. Conversely, the solvents and sulfur source influence morphology and size of the resulting nanocrystals.The morphology of the synthesized nanocrystals were in cubic ZB form when ODE as a solvent and hexagonal WZstructure when diphenyl ether plays as solvent. The synthesized CuInS2 nanocrystals were characterized by ultravioletvisible (UV-Vis), photoluminescence (PL), cyclic voltammetry (CV), X-ray diffraction (XRD) and high resolutiontransmission electron microscopy (HR-TEM).

C. Neela Mohan, V. Renuga, “INFLUENCE OF SULFUR SOURCES AND SOLVENTS ON THE OPTICAL, STRUCTURAL AND MORPHOLOGICAL PROPERTIES OF CuInS2 NANOCRYSTALS BY HOT-INJECTION METHOD”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 5, Issue 19, pp. -, January 2018.