Due to its large absorption coefficient and direct band gap (~1.5 eV), Cu2ZnSnS4 (CZTS) is a promising quaternary semiconductor for solar energy conversion. CZTS is desired due to its composition of elements which are relatively non-toxic, earth abundant, and widely distributed. We show successful doping of the CZTS nanorods with three different first row transition metals, characterized by Powder X-Ray Diffraction, UV-Vis Absorption, Diffuse Reflectance, Transmission Electron Microscopy, Energy Dispersion X-Ray Spectroscopy, Raman Spectroscopy, and Electron Paramagnetic Resonance Spectroscopy. These high spin metal cations (Mn2+, Ni2+, and Co2+) could be capable of inducing novel magnetic properties in the doped CZTS rods, with possible applications in data storage and spintronics.

Doping Cu2ZnSnS4 nanorods with tetrahedral, high spin metals: Co2+, Mn2+, and Ni2+

249th National Meeting (2015)

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