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Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab (ATOMS)
Research Interests
  • Optoelectronic materials synthesis/organic electronics, functionalization of carbonaceous solids, advanced materials chemistry, macromolecular chemistry

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Blue-emitting poly(2,7-pyrenylene)s: Synthesis and optical properties

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dc.contributor.author Kawano, Shin-ichiro ko
dc.contributor.author Yang, Changduk ko
dc.contributor.author Ribas, Marcos ko
dc.contributor.author Baluschev, Stanislav ko
dc.contributor.author Baumgarten, Martin ko
dc.contributor.author Muellen, Klaus ko
dc.date.available 2014-09-29T01:33:33Z -
dc.date.created 2014-09-29 ko
dc.date.issued 2008-11 -
dc.identifier.citation MACROMOLECULES, v.41, no.21, pp.7933 - 7937 ko
dc.identifier.issn 0024-9297 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/6451 -
dc.identifier.uri http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=56549103977 ko
dc.description.abstract The first 2,7-linked conjugated polypyrene tethering four aryl groups has been synthesized, and the photophysical properties of the polymer have been characterized. Due to the unique substitution with bulky aryl groups at the 4,5,9,10-positions of pyrene, the polymer although comprising large π-units is readily soluble in common organic solvents. The polymer has a blue fluorescence in solution with an emission band maximum at X = 429 nm, fulfilling the requirements for a blue-emitting polymer. To a first approximation, this can be attributed to electronically decoupled pyrene subunits due to the nodal properties of their frontier orbitals. Furthermore, in solution the intriguing blue fluorescence is combined with solvent-dependent features, which could be used as a probe for local solvent polarity. Finally, in the solid state, the red-shifted emission of the polymer could be strongly reduced by blending with a nonconjugated polymer such as polystyrene. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher AMER CHEMICAL SOC ko
dc.subject CONJUGATED POLYMER-MOLECULES ko
dc.subject GREEN EMISSION ko
dc.subject ENERGY-TRANSFER ko
dc.subject ELECTRON-TRANSFER ko
dc.subject KETO DEFECT ko
dc.subject POLYFLUORENE ko
dc.subject PYRENE ko
dc.subject FLUORESCENCE ko
dc.subject ORIGIN ko
dc.subject COPOLYMERS ko
dc.title Blue-emitting poly(2,7-pyrenylene)s: Synthesis and optical properties ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-56549103977 ko
dc.identifier.wosid 000260612700027 ko
dc.type.rims ART ko
dc.description.wostc 37 *
dc.description.scopustc 34 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-09-29 *
dc.identifier.doi 10.1021/ma8017316 ko
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