{"title":"Synthesis of Cu2 ZnSnSn4 nanoparticles for solar cell applications","authors":"K. Deepa, Praveen C Ramamurthy","doi":"10.1109/icee44586.2018.8937933","DOIUrl":null,"url":null,"abstract":"Cu2 ZnSnS4 (CZTS) nanoparticles are synthesized using hot injection method at different durations such as 3, 6, 9 and 12h. With increase in the duration to 6h, Cu3SnS4 phase appeared to be prominent together with CZTS phase. Fixing the deposition time at 3 h, the composition is varied to get a Cu poor sample Cu(Zn+Sn) ratio of 0.78 which is known to be in the optimum range for device fabricaton. These films showed tetragonal kesterite structure of CZTS with traces of wurtzite phase. Band gap varied from 1.55 to 1.3 eV and the nanoparticles have a size of ~8 nm. The optimized film had a resistivity of 15 $\\Omega$ cm and mobility of 8 cm2/Vs suitable for solar cells.","PeriodicalId":6590,"journal":{"name":"2018 4th IEEE International Conference on Emerging Electronics (ICEE)","volume":"13 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 4th IEEE International Conference on Emerging Electronics (ICEE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/icee44586.2018.8937933","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Cu2 ZnSnS4 (CZTS) nanoparticles are synthesized using hot injection method at different durations such as 3, 6, 9 and 12h. With increase in the duration to 6h, Cu3SnS4 phase appeared to be prominent together with CZTS phase. Fixing the deposition time at 3 h, the composition is varied to get a Cu poor sample Cu(Zn+Sn) ratio of 0.78 which is known to be in the optimum range for device fabricaton. These films showed tetragonal kesterite structure of CZTS with traces of wurtzite phase. Band gap varied from 1.55 to 1.3 eV and the nanoparticles have a size of ~8 nm. The optimized film had a resistivity of 15 $\Omega$ cm and mobility of 8 cm2/Vs suitable for solar cells.
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