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dc.contributor.advisorRafailovich, Miriamen_US
dc.contributor.authorLi, Hongfeien_US
dc.contributor.otherDepartment of Materials Science and Engineeringen_US
dc.date.accessioned2013-05-24T16:38:21Z
dc.date.available2013-05-24T16:38:21Z
dc.date.issued1-Dec-12en_US
dc.date.submitted12-Decen_US
dc.identifierStonyBrookUniversityETDPageEmbargo_20130517082608_116839en_US
dc.identifier.urihttp://hdl.handle.net/1951/60288
dc.description41 pg.en_US
dc.description.abstractAs a novel photovoltaic material, Poly (3-hexylthiophene) (P3HT) has been extensively applied in variety areas such as field-effect transistors, chemical sensors, and photovoltaic solar cell. But its conductivity is unstable due to its poor mechanical properties and environment resistantance. In polymer photovoltaic devices, it is often to combine the conductive polymer with the certain kind of commodity polymer to get a semiconducting-insulating multicomponent system. Our research provides the method to produce ordered self-assembly columnar structure within active layer of bulk heterojunction (BHJ) solar cell by introducing Poly (methyl methacrylate) (PMMA), into the active layer. The blend thin film of PMMA, poly (3-hexylthiophene-2,5-diyl) (P3HT) and Phenyl-C61-butyric acid methyl ester (PCBM) at different ratio are spin coated on silicon wafer and annealed in vacuum oven for certain time. Atomic force microscopy (AFM) images show uniform phase segregation on the surface of polymer blend thin film and highly ordered columnar structure is then proven by etching the film with ion sputtering. The influence of the morphological structures on the performance of the BHJ solar cells will be correlated with the IV-curves tested in the BNL.en_US
dc.description.sponsorshipStony Brook University Libraries. SBU Graduate School in Department of Materials Science and Engineering. Charles Taber (Dean of Graduate School).en_US
dc.formatElectronic Resourceen_US
dc.language.isoen_USen_US
dc.publisherThe Graduate School, Stony Brook University: Stony Brook, NY.en_US
dc.subject.lcshMaterials Scienceen_US
dc.subject.otherBulk Heterojunction, P3HT, PCBM, Polymer thin film, Solar Cellen_US
dc.titleThe Influence of the Columnar Structure in the Active Layer (PMMA/P3HT/PCBM) on the Performance of the Bulk Heterojunction Solar Cellen_US
dc.typeThesisen_US
dc.description.advisorAdvisor(s): Rafailovich, Miriam . Committee Member(s): Sokolov, Jonathon ; Gersappe, Dilip.en_US
dc.mimetypeApplication/PDFen_US


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