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

Е-mail [email protected]
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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