DC Field | Value | Language |
---|---|---|
dc.contributor.author | Byun, HY | ko |
dc.contributor.author | Chung, In Jae | ko |
dc.contributor.author | Shim, Hong Ku | ko |
dc.contributor.author | Kim, CY | ko |
dc.date.accessioned | 2013-03-06T05:22:57Z | - |
dc.date.available | 2013-03-06T05:22:57Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2004-09 | - |
dc.identifier.citation | MACROMOLECULES, v.37, no.18, pp.6945 - 6953 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.uri | http://hdl.handle.net/10203/85938 | - |
dc.description.abstract | The effects of side chain length and shape at the C-9 position of fluorene in poly(9,9'dihexylfluorene) (PDHF), poly(9,9'-dioetylfluorene) (PDOF), and poly(9,9'-dicyclohexylheptylfluorene) (PDHHF) on optoelectronic and photophysical properties have been investigated in terms of Forster-type energy transfer when they are blended with poly(N-vinylcarbazole) (PVK). PVK/PDHF (w/w, 90/10) shows much more improved photoluminescence and electrololuminescence properties than PVL/PDOF (90/10) and PVK/PDHHF (90/10). The rate (k(T)) and the efficiency (E-T) of energy transfer in polymer blends which are obtained from optical properties and fluorescence intensity decay reveal that they depend on the donor-acceptor distance (r), which is altered by the side chain length of fluorene, rather than the spectral overlap integral (J). PVK/PDHHF (90/10) having polyfluorene with the long and bulky cycloheptyl hexyl side chain have a long distance between donor and acceptor with which the rate and the efficiency of energy transfer decrease. However, PVK/PDHF (90/10) shows the best optoelectronic properties due to the short side chain length of PDHF. | - |
dc.language | English | - |
dc.publisher | Amer Chemical Soc | - |
dc.subject | ELECTROLUMINESCENT CONJUGATED POLYMERS | - |
dc.subject | ENERGY-TRANSFER DYNAMICS | - |
dc.subject | MONTE-CARLO SIMULATIONS | - |
dc.subject | LIGHT-EMITTING-DIODES | - |
dc.subject | RELAXATION DYNAMICS | - |
dc.subject | EMISSION PROPERTIES | - |
dc.subject | FLUORESCENCE | - |
dc.subject | FILMS | - |
dc.subject | POLY(N-VINYLCARBAZOLE) | - |
dc.subject | PHOTOLUMINESCENCE | - |
dc.title | Optoelectronic and photophysical properties of polyfluorene blends as side-chain length and shape | - |
dc.type | Article | - |
dc.identifier.wosid | 000223677600043 | - |
dc.identifier.scopusid | 2-s2.0-4544349508 | - |
dc.type.rims | ART | - |
dc.citation.volume | 37 | - |
dc.citation.issue | 18 | - |
dc.citation.beginningpage | 6945 | - |
dc.citation.endingpage | 6953 | - |
dc.citation.publicationname | MACROMOLECULES | - |
dc.identifier.doi | 10.1021/ma049772w | - |
dc.contributor.localauthor | Shim, Hong Ku | - |
dc.contributor.nonIdAuthor | Byun, HY | - |
dc.contributor.nonIdAuthor | Kim, CY | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ELECTROLUMINESCENT CONJUGATED POLYMERS | - |
dc.subject.keywordPlus | ENERGY-TRANSFER DYNAMICS | - |
dc.subject.keywordPlus | MONTE-CARLO SIMULATIONS | - |
dc.subject.keywordPlus | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | RELAXATION DYNAMICS | - |
dc.subject.keywordPlus | EMISSION PROPERTIES | - |
dc.subject.keywordPlus | FLUORESCENCE | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | POLY(N-VINYLCARBAZOLE) | - |
dc.subject.keywordPlus | PHOTOLUMINESCENCE | - |
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