Photoluminescence of donor–acceptor carbazole-based molecules in amorphous and powder forms
| dc.rights.license | open | |
| dc.contributor.author | ADÈS, D. | |
| hal.structure.identifier | Institut de Chimie des Substances Naturelles [ICSN] | |
| dc.contributor.author | BOUCARD, V. | |
| hal.structure.identifier | Laboratoire de Chimie des Polymères Organiques [LCPO] | |
| dc.contributor.author | CLOUTET, Eric
IDREF: 151048681 | |
| dc.contributor.author | SIOVE, A. | |
| dc.contributor.author | OLIVERO, C. | |
| hal.structure.identifier | Laboratoire de Physique des Lasers [LPL] | |
| dc.contributor.author | CASTEX, M. | |
| dc.contributor.author | PICHLER, G. | |
| dc.date.accessioned | 2020 | |
| dc.date.available | 2020 | |
| dc.date.issued | 2000 | |
| dc.identifier.issn | 0021-8979 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/19587 | |
| dc.description.abstractEn | We present absorption and photoluminescence features of four samples of carbazole molecules substituted with various electron–acceptor groups. These molecules named 1-(N-ethylcarbazolyl)-2-substituted-2-cyanovinylene contain in their structure the electron–donor carbazole nucleus and cyanovinylene bearing either another nitrile function, an ethylester, a phenyl, or a para-nitrophenyl groups. It is shown that depending on the strength of the donor–acceptor internal charge transfer, both the absorption and emission spectra are more or less redshifted. It is found that the ethyl-ester derivative displays the best relative photoluminescence efficiency among all the samples and its peak is measured at 490 nm when taking amorphous thin film. The microcrystalline powder form of the same material exhibits spectral narrowing and shift of the peak emission. We obtain further narrowing of the emission band and further redshifting of the emission when we illuminate, transversely, a glass capillary containing the crystalline sample by an ultraviolet light-emitting diode. | |
| dc.language.iso | en | |
| dc.publisher | American Institute of Physics | |
| dc.title.en | Photoluminescence of donor–acceptor carbazole-based molecules in amorphous and powder forms | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1063/1.372982 | |
| dc.subject.hal | Chimie/Polymères | |
| bordeaux.journal | Journal of Applied Physics | |
| bordeaux.page | 7290-7293 | |
| bordeaux.volume | 87 | |
| bordeaux.hal.laboratories | Laboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629 | * |
| bordeaux.issue | 10 | |
| bordeaux.institution | Bordeaux INP | |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-02930315 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-02930315v1 | |
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