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Synthesis and Characterization of Copper-Zinc-Tin-Sulfide (CZTS) Thin Film Absorber Layer for Solar Cell Application



Author(s)

Shariful Islam¹, Mashudur Rahaman², Md. Abdul Gafur³, Md. Kamal Hossain¹, Farid Ahmed¹ and Md. Abul Hossain¹

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DOI:10.17265/2161-6213/2018.9-10.004

1. Department of Physics, Jahangirnagar University, Dhaka 1342, Bangladesh
2. Institute of Fuel and Research Development, Bangladesh Council for Scientific and Industrial Research, Dhaka 1205, Bangladesh
3. Pilot Plant and Process Development Center, Bangladesh Council for Scientific and Industrial Research, Dhaka 1205, Bangladesh

Copper zinc tin sulfide (CZTS) thin film was synthesized on soda lime glass substrate by using spin coating method. The synthesized CZTS thin film showed maximum absorption coefficient of 0.193 × 104 cm^-1 and maximum extinction coefficient of 0.011. The direct optical band gap, Urbach energy and steepness parameter of the synthesized CZTS thin film were 1.52 eV, 0.52 eV and 0.05 respectively. The CZTS thin film was found to be polycrystalline tetragonal in nature. The scanning electron microscopy (SEM) revealed that the texture structure was formed for the CZTS thin film.

CZTS, absorber layer, solar cell, spin coating deposition.