Majula, L.Mlyuka, N. R.Samiji, M. E.Bryce, R. S.Kim, D. Y.Kim, S. H.Lee, H. J.Choi, H. J.2016-02-112016-02-112015-09Majula, L., Mlyuka, N., Samiji, M., Bryce, R., Kim, D., Kim, S., Lee, H. and Choi, H. (2015). Spin-coated kesterite CZTS thin films for photovoltaic applications. Journal of the Korean Physical Society, 67(6), pp.1078-1081.Print: 0374-4884Online : 1976-852410.3938/jkps.67.1078http://hdl.handle.net/123456789/348To access full text please visit the following link http://link.springer.com/article/10.3938%2Fjkps.67.1078Copper zinc tin-sulfide (CZTS) films have been widely studied over recent years due to the inherent advantages of low cost, high absorption coefficient (≥ 104 cm−1), suitable band gap (∼1.5 eV) and nontoxicity. In this work, spin coating was used to obtain CZTS films of various compositions and degrees of crystallization on glass substrates, which were then annealed at 500 °C in a N2 atmosphere by using a rapid thermal processing (RTP) furnace in order to optimize their structure. Non-stoichiometric precursors and low spinning speeds resulted in a lower sheet resistance, which is considered to be a result of lower degree of crystallization. Furthermore, the non-stoichiometric films had a high optical band gap (> 1.66 eV) whereas the band gap of the stoichiometric films (1.4 to 1.6 eV) was close to the optimal value (1.5 eV) for solar-cell applications.enCopper zinc tin-sulfide (CZTS)Thin filmPhotovoltaicsSpin coatingRapid thermal processingJournal Article, Peer Reviewed