Structural and Optical Properties of Cu2ZnSnS4 Nanoparticles for Solar Cell Applications

Authors R. Lydia, P. Sreedhara Reddy

Department of Physics, Sri Venkateswara University, Tirupati, 517502 India

Issue Volume 5, Year 2013, Number 3
Dates Received 13 March 2013; revised manuscript received 05 July 2013; published online 12 July 2013
Citation R. Lydia, P. Sreedhara Reddy, J. Nano- Electron. Phys. 5 No 3, 03017 (2013)
PACS Number(s) 61.46.Df, 88.40.hj, 68.37.Hk
Keywords CZTS (10) , Nanoparticles (70) , Solar cell (51) .
Annotation The Cu2ZnSnS4 (CZTS) nanoparticles were successfully synthesized by Chemical co-precipitation method with different synthesis temperatures. The synthesized nanoparticles were characterized by X-ray diffraction, Raman Spectroscopy, Scanning electron microscopy, Energy dispersive spectroscopy and UV-VIS-NIR spectrophotometer. XRD and Raman studies revealed that the CZTS nanoparticles exhibited Kesterite Structure with preferential orientation along the (112) direction. The CZTS nanoparticles synthesized at a temperature 150 C exhibited near stoichiometry. On further increasing the synthesis temperature sulphur composition was decreased due to volatile nature of the sulphur. The synthesized nanopar-ticles exhibited an optimum band gap of 1.4 eV.

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