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dc.contributor.authorGuha, Suchieng
dc.contributor.authorRice, J. D.eng
dc.contributor.authorYau, Y. T.eng
dc.contributor.authorMartin, Christopher M., 1973-eng
dc.contributor.authorChandrasekhar, Meeraeng
dc.contributor.authorChandrasekhar, Holalkere R.eng
dc.contributor.authorGuentner, R.eng
dc.contributor.authorScanduicci de Freitas, P.eng
dc.contributor.authorScherf, Ullricheng
dc.date.issued2003eng
dc.descriptionURL:http://link.aps.org/doi/10.1103/PhysRevB.67.125204 DOI:10.1103/PhysRevB.67.125204eng
dc.description.abstractWe present photoluminescence studies as a function of temperature from a series of conjugated polymers and a conjugated molecule all with distinctly different backbone conformations. The organic materials investigated here are planar methylated ladder-type poly para-phenylene, semi-planar polyfluorene, and nonplanar para-hexaphenyl. In the long-chain-polymers the photoluminescence transition energies blueshift with increasing temperatures. In contrast, in the conjugated molecules transition energies redshift with increasing temperatures. Empirical models that explain the temperature dependence of the band gap energies in inorganic semiconductors are extended to explain the temperature dependence of the transition energies in conjugated molecules.eng
dc.description.sponsorshipThe work at SMSU was partly funded by the Research Corporation Grant No. CC5332 and the Petroleum Research Fund Grant No. 35735-GB5. S.G. would also like to acknowledge the SMSU summer faculty support and the Faculty Research Grant. U.S. thanks SONY International Europe, Stuttgart, and the Deutsche Forschungsgemeinschaft~DFG! for financial support.eng
dc.identifier.citationPhys. Rev. B 67, 125204 (2003)eng
dc.identifier.issn1098-0121eng
dc.identifier.urihttp://hdl.handle.net/10355/8059eng
dc.languageEnglisheng
dc.publisherAmerican Physical Societyeng
dc.relation.ispartofcollectionUniversity of Missouri--Columbia. College of Arts and Sciences. Department of Physics and Astronomy. Physics and Astronomy publicationseng
dc.subject.lcshConjugated polymerseng
dc.subject.lcshOrganic compoundseng
dc.subject.lcshThermal analysiseng
dc.subject.lcshThermal propertieseng
dc.titleTemperature-dependent photoluminescence of organic semiconductors with varying backbone conformationeng
dc.typeArticleeng


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