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Characterization of Organic and Inorganic Optoelectronic Semiconductor Devices Using Advanced Spectroscopic Methods

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dc.contributor.authorSchroeder, Raoulen
dc.contributor.committeecochairUllrich, Bruno R.en
dc.contributor.committeecochairHeflin, James R.en
dc.contributor.committeememberGraupner, Wilhelmen
dc.contributor.committeememberIndebetouw, Guy J.en
dc.contributor.committeememberDavis, Richey M.en
dc.contributor.committeememberFicenec, John R.en
dc.contributor.departmentPhysicsen
dc.date.accessioned2014-03-14T20:06:35Zen
dc.date.adate2002-01-22en
dc.date.available2014-03-14T20:06:35Zen
dc.date.issued2001-12-14en
dc.date.rdate2003-01-22en
dc.date.sdate2002-01-07en
dc.description.abstractIn this thesis, advanced spectroscopy methods are discussed and applied to gain understanding of the physical properties of organic conjugated molecules, II-VI thin film semiconductors, and vertical cavity surface emitting lasers (VCSEL). Experiments include single photon and two-photon excitation with lasers, with subsequent measurements of the absorption and photoluminescence, as well as photocurrent measurements using tungsten and xenon lamps, measuring the direct current and the alternating current of the devices. The materials are investigated in dissolved form (conjugated polymers), thin films (polymers, II-VI semiconductors), and complex layer structures (hybrid device, VCSEL). The experiments are analyzed and interpreted by newly developed or applied theories for two-photon saturation processes in semiconductors, bandgap shrinkage due to optically induced electron hole pairs, and the principle of detailed balance to describe the photoluminescence in thin film cadmium sulfide.en
dc.description.degreePh. D.en
dc.identifier.otheretd-01072002-094801en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-01072002-094801/en
dc.identifier.urihttp://hdl.handle.net/10919/25957en
dc.publisherVirginia Techen
dc.relation.haspartRaoul_Schroeder_thesis.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectSemiconductorsen
dc.subjectTwo-Photon Absorptionen
dc.subjectUltrashort Laser Pulsesen
dc.subjectConjugated Polymersen
dc.subjectSpectroscopyen
dc.subjectCadmium Sulfideen
dc.titleCharacterization of Organic and Inorganic Optoelectronic Semiconductor Devices Using Advanced Spectroscopic Methodsen
dc.typeDissertationen
thesis.degree.disciplinePhysicsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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