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postgraduate thesis: Synthesis of conjugated polymers with pendant metal complexes and study of their photophysical properties

TitleSynthesis of conjugated polymers with pendant metal complexes and study of their photophysical properties
Authors
Advisors
Advisor(s):Chan, WK
Issue Date2014
PublisherThe University of Hong Kong (Pokfulam, Hong Kong)
Citation
Tsoi, K. [蔡家榮]. (2014). Synthesis of conjugated polymers with pendant metal complexes and study of their photophysical properties. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5351043
AbstractA series of copolymers based on poly(phenylene thienylene) mainchain that contains pendent bisterpyridine ruthenium(II) complexes was synthesized by palladium catalyzed Suzuki coupling reaction. The polymers contain different proportion of metal complexes. The copolymers exhibit broad absorption band in the visible region due to the conjugated backbone and the bisterpyridine ruthenium complexes. The relative intensity of each absorption band depends on the metal complex contents. There is a significant spectral overlap between the emission of the conjugated polymer mainchain and the absorption of the ruthenium complexes. It was found that there is a quenching of polymer emission by the complexes. Based on the results obtained by spectroscopic studies, it is proposed to be Förster type energy transfer process between the polymer mainchain as the donor and the complexes as the acceptors. Two donor-acceptor molecules with pyrazinopyrazine bridge units were synthesized. They exhibit intramolecular charge transfer character and were characterized by 1 H NMR, FTIR, UV-visible absorption and mass spectrometry. The two compounds have absorption band in the near IR region and exhibit narrow band gap. Through structural modification, their optical and electronic properties can be fine tuned. They have potential applications in organic photovoltaic cells and organic field effect transistors.
DegreeMaster of Philosophy
SubjectConjugated polymers
Dept/ProgramChemistry
Persistent Identifierhttp://hdl.handle.net/10722/207997

 

DC FieldValueLanguage
dc.contributor.advisorChan, WK-
dc.contributor.authorTsoi, Ka-wing-
dc.contributor.author蔡家榮-
dc.date.accessioned2015-02-06T14:19:32Z-
dc.date.available2015-02-06T14:19:32Z-
dc.date.issued2014-
dc.identifier.citationTsoi, K. [蔡家榮]. (2014). Synthesis of conjugated polymers with pendant metal complexes and study of their photophysical properties. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5351043-
dc.identifier.urihttp://hdl.handle.net/10722/207997-
dc.description.abstractA series of copolymers based on poly(phenylene thienylene) mainchain that contains pendent bisterpyridine ruthenium(II) complexes was synthesized by palladium catalyzed Suzuki coupling reaction. The polymers contain different proportion of metal complexes. The copolymers exhibit broad absorption band in the visible region due to the conjugated backbone and the bisterpyridine ruthenium complexes. The relative intensity of each absorption band depends on the metal complex contents. There is a significant spectral overlap between the emission of the conjugated polymer mainchain and the absorption of the ruthenium complexes. It was found that there is a quenching of polymer emission by the complexes. Based on the results obtained by spectroscopic studies, it is proposed to be Förster type energy transfer process between the polymer mainchain as the donor and the complexes as the acceptors. Two donor-acceptor molecules with pyrazinopyrazine bridge units were synthesized. They exhibit intramolecular charge transfer character and were characterized by 1 H NMR, FTIR, UV-visible absorption and mass spectrometry. The two compounds have absorption band in the near IR region and exhibit narrow band gap. Through structural modification, their optical and electronic properties can be fine tuned. They have potential applications in organic photovoltaic cells and organic field effect transistors.-
dc.languageeng-
dc.publisherThe University of Hong Kong (Pokfulam, Hong Kong)-
dc.relation.ispartofHKU Theses Online (HKUTO)-
dc.rightsThe author retains all proprietary rights, (such as patent rights) and the right to use in future works.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subject.lcshConjugated polymers-
dc.titleSynthesis of conjugated polymers with pendant metal complexes and study of their photophysical properties-
dc.typePG_Thesis-
dc.identifier.hkulb5351043-
dc.description.thesisnameMaster of Philosophy-
dc.description.thesislevelMaster-
dc.description.thesisdisciplineChemistry-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.5353/th_b5351043-

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