Effect of pH on the Characteristics of Cu2ZnSnS4Nanoparticles | Zendy

R. Lydia | Zendy; P. Sreedhara Reddy | Zendy

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Effect of pH on the Characteristics of Cu₂ZnSnS₄Nanoparticles

Author(s) -

R. Lydia,

P. Sreedhara Reddy

Publication year - 2013

Publication title -

isrn condensed matter physics

Language(s) - English

Resource type - Journals

eISSN - 2090-7400

pISSN - 2090-7397

DOI - 10.1155/2013/145205

Subject(s) - kesterite , czts , nanoparticle , raman spectroscopy , stoichiometry , materials science , chemical bath deposition , band gap , diffraction , fabrication , layer (electronics) , chemical engineering , nanotechnology , chemistry , optoelectronics , optics , medicine , physics , alternative medicine , engineering , pathology

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.

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