Effect of pH on the Characteristics of Cu2ZnSnS4 Nanoparticles

Autor:	P. Sreedhara Reddy, R. Lydia
Jazyk:	angličtina
Rok vydání:	2013
Předmět:	Fabrication Materials science Article Subject Nanoparticle Mineralogy engineering.material chemistry.chemical_compound symbols.namesake chemistry Chemical engineering engineering symbols Direct and indirect band gaps Kesterite CZTS Raman spectroscopy Deposition (law) Stoichiometry
Zdroj:	ISRN Condensed Matter Physics.
DOI:	10.1155/2013/145205
Popis:	We have investigated the effect of pH on the structural and optical properties of chemical coprecipitated Cu2ZnSnS4 (CZTS) nanoparticles. The CZTS nanoparticles have been successfully synthesized at different pH values ranging from 6 to 9, keeping all other deposition parameters as constant. X-ray diffraction and Raman studies confirmed the Kesterite structure. The powders synthesized at a pH value of 8 exhibited preferred orientation along (112) and (220) with near stoichiometric ratio. The as synthesized nanoparticles exhibited direct band gap of 1.4 eV which is an optimum value for the absorber layer in the fabrication of photovoltaic cells.
Databáze:	OpenAIRE
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