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dc.contributor.advisorOoi, Boon S.
dc.contributor.advisorFratalocchi, Andrea
dc.contributor.authorKhan, Yasser
dc.date.accessioned2012-07-24T07:09:48Z
dc.date.available2012-07-24T07:09:48Z
dc.date.issued2012-07
dc.identifier.doi10.25781/KAUST-XL2DM
dc.identifier.urihttp://hdl.handle.net/10754/235351
dc.description.abstractWith experimental realization, energy harvesting capabilities of chaotic microstructures were explored. Incident photons falling into chaotic trajectories resulted in energy buildup for certain frequencies. As a consequence, many fold enhancement in light trapping was observed. These ellipsoid like chaotic microstructures demonstrated 25% enhancement in light trapping at 450nm excitation and 15% enhancement at 550nm excitation. Optimization of these structures can drive novel chaos-assisted energy harvesting systems. In subsequent sections of the thesis, prospect of broadband light extraction from white light emitting diodes were investigated, which is an unchallenged but quintessential problem in solid-state lighting. Size dependent scattering allows microstructures to interact strongly with narrow-band light. If disorder is introduced in spread and sizes of microstructures, broadband light extraction is possible. A novel scheme with Voronoi tessellation to quantify disorder in physical systems was also introduced, and a link between voronoi disorder and state disorder of statistical mechanics was established. Overall, in this thesis some nascent concepts regarding disorder and chaos were investigated to efficiently manage electromagnetic waves in optoelectronic devices.
dc.language.isoen
dc.subjectLight extraction
dc.subjectLight trapping
dc.subjectQuantifying disorder
dc.subjectSolid-state lighting
dc.subjectEnergy harvesting
dc.subjectMicroscopic Chaos
dc.titleLight Management in Optoelectronic Devices with Disordered and Chaotic Structures
dc.typeThesis
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
thesis.degree.grantorKing Abdullah University of Science and Technology
dc.contributor.committeememberAl Sunaidi, Mohammad
thesis.degree.disciplineElectrical Engineering
thesis.degree.nameMaster of Science
refterms.dateFOA2013-07-30T00:00:00Z


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