Publications

Abstract : Abstract Structural properties and solar cells performance of sputter grown sub-micrometer thick (nbsp;600 nm) Cu2ZnSnS4 (CZTS) films are investigated for low cost and large scale photovoltaic deployment. The {CZTS} films are deposited using single quaternary stoichiometric target at room temperature. X-ray diffraction, micro-Raman spectroscopy, and scanning electron microscopy measurements were carried out to investigate the structural property and secondary phase formation. The intense phonon peak at 334 cm−1 in the visible Raman spectra confirms the deposition of single phase {CZTS} films. CZTS-based thin film solar cells show excellent performance with open circuit voltage nbsp;600 mV and over all cell efficiency of nbsp;3.07%, exhibiting commercial potential toward large scale fabrication of photovoltaic devices.