Creation and Optical Characterization of Functional Defects in Two-Dimensional Materials

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dc.contributor.advisorKono, Junichiroen_US
dc.creatorKerwin, James Thomasen_US
dc.date.accessioned2019-05-17T16:25:40Zen_US
dc.date.available2019-05-17T16:25:40Zen_US
dc.date.created2018-12en_US
dc.date.issued2018-11-28en_US
dc.date.submittedDecember 2018en_US
dc.date.updated2019-05-17T16:25:40Zen_US
dc.description.abstractThe optical properties of two-dimensional materials change with the introduction of defects into the lattice. In this work, we characterize some of the optical properties of a binary alloy, MoxW1-xS2, and hexagonal boron nitride (h-BN) as they change in the presence of defects. Under laser illumination and optical heating, we find that damage to the binary alloy leads to brightening in the photoluminescence intensity, and with increased exposure, oxidation of the material. It is also possible to induce sub-bandgap emission in h-BN when the lattice is damaged. Using electron beam lithography techniques, we are able to controllably induce defects into the material and, consequently, create sub-bandgap fluorescent emitters that follow the lithographically patterned array. Under the right conditions, some of these emitters show single-photon emission, which is observable at room temperature. These properties can be used advantageously to create areas of bright emission in optoelectronic devices.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationKerwin, James Thomas. "Creation and Optical Characterization of Functional Defects in Two-Dimensional Materials." (2018) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/105869">https://hdl.handle.net/1911/105869</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/105869en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjecttwo-dimensional materialsen_US
dc.subjecthexagonal boron nitrideen_US
dc.titleCreation and Optical Characterization of Functional Defects in Two-Dimensional Materialsen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentElectrical and Computer Engineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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