The rheology of silicon nanoparticle inks fro screen printing electronic devices

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dc.contributor.authorMathe, Ntombizodwaen_ZA
dc.date.accessioned2014-08-13T20:08:18Z
dc.date.available2014-08-13T20:08:18Z
dc.date.issued2010en_ZA
dc.description.abstractIn the development of inks for printed electronics, it is important to understand the behaviour of the functional inks and more especially their rheology and surface properties. This project emphasises the importance of ink characterization by performing rheological tests on silicon nanoparticle based inks that are used in the screen printing of electronic devices. The inks were characterized for linear viscoelastic behaviour, flow behaviour, change in properties with angular frequency, as well as thixotropic behaviour. All showed shear thinning, with the more dilute inks showing a power law (Ostwald / de Waele model) behaviour dependence of complex viscosity on angular frequency. The flow behaviour of the inks was also seen to follow a Windhab model. The printability of the inks primarily depends on the shear-dependent viscosity as highly viscous and dilute inks do not produce good printed structures. The printed layers showed electrical and optical activity.en_ZA
dc.identifier.apacitationMathe, N. (2010). <i>The rheology of silicon nanoparticle inks fro screen printing electronic devices</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Physics. Retrieved from http://hdl.handle.net/11427/6536en_ZA
dc.identifier.chicagocitationMathe, Ntombizodwa. <i>"The rheology of silicon nanoparticle inks fro screen printing electronic devices."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Physics, 2010. http://hdl.handle.net/11427/6536en_ZA
dc.identifier.citationMathe, N. 2010. The rheology of silicon nanoparticle inks fro screen printing electronic devices. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Mathe, Ntombizodwa AB - In the development of inks for printed electronics, it is important to understand the behaviour of the functional inks and more especially their rheology and surface properties. This project emphasises the importance of ink characterization by performing rheological tests on silicon nanoparticle based inks that are used in the screen printing of electronic devices. The inks were characterized for linear viscoelastic behaviour, flow behaviour, change in properties with angular frequency, as well as thixotropic behaviour. All showed shear thinning, with the more dilute inks showing a power law (Ostwald / de Waele model) behaviour dependence of complex viscosity on angular frequency. The flow behaviour of the inks was also seen to follow a Windhab model. The printability of the inks primarily depends on the shear-dependent viscosity as highly viscous and dilute inks do not produce good printed structures. The printed layers showed electrical and optical activity. DA - 2010 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2010 T1 - The rheology of silicon nanoparticle inks fro screen printing electronic devices TI - The rheology of silicon nanoparticle inks fro screen printing electronic devices UR - http://hdl.handle.net/11427/6536 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/6536
dc.identifier.vancouvercitationMathe N. The rheology of silicon nanoparticle inks fro screen printing electronic devices. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Physics, 2010 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/6536en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Physicsen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherPhysicsen_ZA
dc.titleThe rheology of silicon nanoparticle inks fro screen printing electronic devicesen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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