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dc.contributor.authorSchroeder, Raoulen_US
dc.date.accessioned2014-03-14T20:06:35Z
dc.date.available2014-03-14T20:06:35Z
dc.date.issued2001-12-14en_US
dc.identifier.otheretd-01072002-094801en_US
dc.identifier.urihttp://hdl.handle.net/10919/25957
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_US
dc.publisherVirginia Techen_US
dc.relation.haspartRaoul_Schroeder_thesis.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectSemiconductorsen_US
dc.subjectTwo-Photon Absorptionen_US
dc.subjectUltrashort Laser Pulsesen_US
dc.subjectConjugated Polymersen_US
dc.subjectSpectroscopyen_US
dc.subjectCadmium Sulfideen_US
dc.titleCharacterization of Organic and Inorganic Optoelectronic Semiconductor Devices Using Advanced Spectroscopic Methodsen_US
dc.typeDissertationen_US
dc.contributor.departmentPhysicsen_US
dc.description.degreePh. D.en_US
thesis.degree.namePh. D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplinePhysicsen_US
dc.contributor.committeememberGraupner, Wilhelmen_US
dc.contributor.committeememberIndebetouw, Guy J.en_US
dc.contributor.committeememberDavis, Richey M.en_US
dc.contributor.committeememberFicenec, John R.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-01072002-094801/en_US
dc.contributor.committeecochairUllrich, Bruno R.en_US
dc.contributor.committeecochairHeflin, James R.en_US
dc.date.sdate2002-01-07en_US
dc.date.rdate2003-01-22
dc.date.adate2002-01-22en_US


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