Novel materials and techniques for energy conversion and sensing

buir.advisorDana, Aykutlu
dc.contributor.authorEkiz, Okan Öner
dc.departmentGraduate Program in Materials Science and Nanotechnologyen_US
dc.descriptionCataloged from PDF version of thesis.en_US
dc.descriptionIncludes bibliographical references (leaves 87-94).en_US
dc.descriptionThesis (Ph. D.): Bilkent University, Materials Science and Nanotechnology Program, İhsan Doğramacı Bilkent University, 2015.en_US
dc.description.abstractIn the recent years, characterization of nanomaterials and using them in sensing applications gain considerable attention. Increased research on nanotechnology brings new materials and techniques that come with many unsought properties. Additionally, novel materials and concepts have created new demands for new characterization techniques. In this thesis, our main aim is to characterize novel materials and develop new techniques to use nanotechnology in sensing applications. Graphene is one of the most important material in nanotechnology found in the recent years. In this thesis, we have characterized and explain the electrochemical behavior of graphene oxide. During the experiments, novel properties of graphene oxide have been revealed. Foundings paved the way for new applications of graphene. Recent studies in plasmonic materials made SERS (Surface-Enhanced-Raman- Spectroscopy) an important characterization tool used in nanotechnology. SERS is a powerful technique for chemical speci c and label free analysis of low concentration materials. In this thesis, we have used SERS to build an arti cial nose for detection of VOCs. SERS substrates have been fabricated and used for the experiments. Experiments showed that our technique could detect many VOCs and could be used for several applications such as explosive and drug detection. There is a strong need for easy and cost e ective biosensors especially for homecare applications. Recent advances in nanotechnology help us to develop cost e ective techniques. Reducing costs could make biosensors more accessible for end user applications such. In this thesis, we have developed a biosensor platform by using SPR (Surface Plasmon Resonance) for pathogen detection. Experiments showed that our device could detect 102 pathogens without labeling. Our aim is to improve this platform for rapid food analysis and home-care applications.en_US
dc.description.statementofresponsibilityby Okan Öner Ekizen_US
dc.format.extentxvi, 94 leaves : charts.en_US
dc.publisherBilkent Universityen_US
dc.subjectGraphene oxideen_US
dc.subjectRaman microscopyen_US
dc.subjectSurface plasmon resonanceen_US
dc.subjectBacterial sensingen_US
dc.subjectPathogen detectionen_US
dc.subjectSingle molecule sensingen_US
dc.titleNovel materials and techniques for energy conversion and sensingen_US
dc.title.alternativeEnerji çevrimi ve algılama amaçlı yenilikçi malzemeler ve teknikleren_US
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