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Showing 1 to 17 of 17 for “"Conjugated molecules"”.
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Energy and Electron Transfer in Novel Conjugated Molecules and Their Application to Photoelectrochemical Devices
学位授与大学：京都大学 ; 取得学位: 博士(工学) ; 学位授与年月日: 2007-09-25 ; 学位の種類: 新制・課程博士 ; 学位記番号: 工博第2867号 ; 請求記号: 新制/工/1421 ; 整理番号: 25552
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Electronic excitations in branched conjugated oligomers: A quasiparticle view and tight-binding models
… excited state electronic structures of organic conjugated molecules. The exciton scattering (ES) approach has been extended for efficient calculation of optical spectra of large branched conjugated oligomers. The methodology of tight-binding (lattice) model, originally developed in condensed …
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Characterization of Organic and Inorganic Optoelectronic Semiconductor Devices Using Advanced Spectroscopic Methods
… of the physical properties of organic conjugated molecules, II-VI thin film semiconductors, and vertical cavity surface emitting lasers (VCSEL). Experiments include single photon and two-photon excitation with lasers, with subsequent measurements of the absorption and photoluminescence, …
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Design, synthesis, and analysis of conjugated activators for modulation of alternative splicing
… for easy derivatization. The efficacy of these molecules was examined using an in vitro splicing assay. Analysis of these molecules using in vitro splicing assays indicates that neither synthetic RS domains nor antisense oligonucleotides alone affect splicing patterns, but conjugated molecules …
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Photophysical Properties of Anthracenic Metal Organic Frameworks
… light emitting diodes. MOFs designed with π conjugated molecules like anthracene ligands possess similar photophysical properties such as absorption and fluorescence in the UV and visible spectrum. In hopes of better understanding how the photophysical properties of the organic ligand is …
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Characterisation of electrode microarrays produced photolithographically and with thiol self-assembled monolayers on gold electrodes
… of molecular electronics is the use of single molecules or arrays, or layers of molecules for the fabrication of electronic components such as wires, switches, and storage elements. Indeed, functionalised thiol monolayer-based microelectrode array may provide unique possibilities, facilitating …
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Organic/carbon nanotubes hybrid thin films for chemical detection.
… (MPcs) are classified as an important class of conjugated materials and they possess several advantages attributed to their unique chemical structure. Carbon nanotubes (CNT), on the other hand, are known to enhance the properties of nano-composites in the conjugated molecules, due to their one …
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Theoretical Modeling Of Electron Transport In Molecular Devices
… and well quantized energy levels, including pi conjugated molecules, such as benzene-dithiol, beta-carotene and metal-ligand clusters, such as cobalt bis(terpyridyl) complex and a lot more; (ii) extended "molecules" with repeated structures, such as carbon nanotubes and graphene sheets. These …
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Measurement and Visualization of Electron Transfer at the Single Molecule Level
… focus has been placed on designing conductive, conjugated molecules. However, the electrode-molecule contacts can dominate the responses of metal-molecule-metal devices. We have experimentally and theoretically probed charge transfer through single phenyleneethynylene molecules terminated with …
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SPECTROSCOPIC, IMAGING, AND DOPING STUDIES OF PUSH-PULL CONJUGATED POLYMER SOLAR CELLS
… is needed to propel the use of PCPDTBT and other conjugated molecules into widespread use in solar cells. The research presented herein is aimed at improving our understanding of the electronic processes that allow PCPDTBT to outperform its homopolymer counterparts in OPV devices. Electronic …
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Linear Conjugated Molecular Wires: Organic Materials and Single-Molecule Electronics
… families are made up of collections of linear conjugated oligomers, such as oligoenes and phenylenevinylenes and their derivatives. The bulk properties of each system were examined in order to establish structure-performance relationship between the intrinsic molecular properties of the …
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Experimental and Theoretical Study of Resonance Raman Spectroscopy in Ground and Excited Electronic States
… in observing the vibrational properties of molecules, and identifying compounds based on structure. While the experimental measurements provide structural information on the vibrational transitions, the detailed interpretation of Raman spectra for complex molecules requires assignment of the …
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Tailoring functional Π-conjugated polymers and molecules for organic photovoltaic applications
… will first present a family of photoactive conjugated polymers with only a “one-atom” minimal change. This will showcase the use of thorough cross-coupling polymer synthesis and purification, structural and physical characterization techniques to elucidate structure-property understanding in …
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Two-dimensional molecular self-assemblies on surfaces studied by low-temperature scanning tunneling microscopy
… was also aimed. Epitaxial growth of organic p-conjugated molecular films on solid surfaces was investigated initially, including copper hexadecafluorophthalocyanine (F16CuPc) and di-indenoperylene (DIP) ultra-thin films on graphite and/or SiO2. To increase the tunability and functionality of …
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Single molecule studies of charge transport in organic redox-active materials
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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BORAHETEROHELICENES: SYNTHETIC METHODOLOGIES AND PROPERTIES OF A NOVEL CLASS OF BORON Π-CONJUGATED SYSTEMS
… exist as pair of enantiomers.[6] This class of molecules is particularly interesting since it merges the properties of oligothiophenes with those of helicenes, giving rise to systems with peculiar electronic and chiroptical properties which make them appealing building blocks for applications in …
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Single molecule studies of molecular electronics and biohybrid materials
… increase in conductance compared to the same molecules on gold electrodes. Overall, this work presents a simple, new electrode-anchor pair that reliably forms molecular junctions with stable and robust contacts useful for molecular electronics applications. In Chapter 3, the role of quantum …