Electrical characterization of methyl-terminated n-type silicon microwire/PEDOT:PSS junctions for solar water splitting applications

dc.contributor.authorAsgari, Sommayeh
dc.contributor.examiningcommitteeFilizadeh, Shaahin (Electrical and Computer Engineering) Xing, Malcolm (Mechanical Engineering)en_US
dc.contributor.supervisorOliver, Derek.R (Electrical and Computer Engineering) Freund, Michael.S (Chemistry)en_US
dc.date.accessioned2014-08-26T17:30:22Z
dc.date.available2014-08-26T17:30:22Z
dc.date.issued2014-08-26
dc.degree.disciplineElectrical and Computer Engineeringen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractThe role of high doping levels and the interfacial structure on the junction behavior between n-type silicon microwires and the conducting polymer, PEDOT:PSS, was investigated using tungsten probes, an established technique for Ohmic contact to individual microwires. The resistance and the doping density of carriers as a function of length along each microwire as well as the junction resistance between individual microwires and the conducting polymer were characterized by making Ohmic contact to microwires. The junction between highly-doped n-Si microwires and the conducting polymer had relatively symmetric current-voltage characteristics and a significantly lower junction resistance as compared to low-doped microwires. The current-voltage response of junctions formed between the polymer and low-doped microwires, which still incorporated the metal catalyst used in the growth process, was also studied. Junctions incorporating copper at the interface had similar current-voltage characteristics to those observed for the highly-doped microwire, while junctions incorporating gold exhibited significantly lower resistancesen_US
dc.description.noteOctober 2014en_US
dc.identifier.urihttp://hdl.handle.net/1993/23885
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectMicrowiresen_US
dc.subjectsolar water splittingen_US
dc.titleElectrical characterization of methyl-terminated n-type silicon microwire/PEDOT:PSS junctions for solar water splitting applicationsen_US
dc.typemaster thesisen_US
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