Analysis of the Molecular Orientation of Poly(3-hexylthiophene) on Silicon Treated with Silane Coupling Agents, by Infrared p-Polarized Multiple-angle Incidence Resolution Spectrometry

Abiko, Katsutoshi; Kato, Yuichi

doi:10.1246/cl.171059

Cited by 4 publications

(3 citation statements)

References 46 publications

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“…Our group reported the highly oriented structure of Nafion thin films on SiO x [34], MgO [35,36], sputtered Pt [37], and sputtered Au [36] surfaces by infrared p-polarized multiple-angle incidence resolution spectrometry (pMAIRS), which was developed by Hasegawa and co-workers [38][39][40], as presented in Figure 2(a-d). IR pMAIRS offers the molecular orientation for each functional group to various functional materials such as derivatives of polythiophene [41,42], porphyrin [43], pentacene [44], fullerene [45], naphthalene diimide [46], phthalimide [47], azulene [48], metal-oxide nanowire [49], polymer brushes [50], and polyimide [51]. Because this spectroscopic method is an infrared spectroscopic method, it is useful because it is applicable to non-crystalline materials.…”

Section: Introductionmentioning

confidence: 99%

Progress on highly proton-conductive polymer thin films with organized structure and molecularly oriented structure

Nagao

2020

Science and Technology of Advanced Materials

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Several current topics are introduced in this review, with particular attention to highly protonconductive polymer thin films with organized structure and molecularly oriented structure. Organized structure and molecularly oriented structure are anticipated as more promising approaches than conventional less-molecular-ordered structure to elucidate mechanisms of high proton conduction and control proton conduction. This review introduces related polymer materials and molecular design using lyotropic liquid crystals and hydrogen bond networks for high proton conduction. It also outlines the use of substrate surfaces and external fields, such as pressure and centrifugal force, for organizing structures and molecularly oriented structures.

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Section: Introductionmentioning

confidence: 99%

Progress on highly proton-conductive polymer thin films with organized structure and molecularly oriented structure

Nagao

2020

Science and Technology of Advanced Materials

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“…For this purpose, the MAIRS technique is powerful because it can directly discuss the orientation of aromatic rings. In fact, this method has been used for molecular orientation analysis of many thin-film organic semiconductor materials, such as poly(3-alkylthiophene)s, [93][94][95][96][97][98] polyphyrins, [99][100][101][102][103][104] and PEN. [105][106][107][108][109] To analyze the molecular orientation of organic semiconductors, the C-H out-of-plane vibrational [γ(CH)] band of aromatic rings is useful because of its high absorption intensity and its direction of the transition moment.…”

Section: Organic Semiconductor Analysis In Thin Filmsmentioning

confidence: 99%

Multiple-angle incidence resolution spectrometry: applications in nanoarchitectonics and applied physics

Shioya,

Mori,

Ariga

et al. 2024

Jpn. J. Appl. Phys.

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The cutting-edge thin film studies using the multiple-angle incidence resolution spectrometry (MAIRS) are introduced from the principle to forefront applications in a wide variety of research fields covering semiconductor material with respect to nanoarchitectonics. MAIRS basically reveals quantitatively optical anisotropy in thin films, which is mostly used for quantitative molecular orientation analysis of each chemical group for chemistry purposes. This works powerfully especially when the material has poor crystallinity that cannot be analyzed by X-ray diffraction analysis. As a matter of fact, MAIRS works as a role that compensates for the diffraction techniques, and the combination of MAIRS and the diffraction techniques has already established as the most powerful technique not to miss the molecular aggregation structure in thin films. In this review, in addition, another application for physics purposes is also introduced where phonon in thin films is discriminated from normal infrared absorption bands by using the MAIRS technique.

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“…To improve the performance of organic thin-film devices, structural control of the organic semiconductor layer is a crucial technology, which has extensively been studied thus far [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. In particular, an ordered thin film with a high crystallinity is needed for improving both exciton diffusion length and charge transfer [7,15].…”

Section: Introductionmentioning

confidence: 99%

Structure control of a zinc tetraphenylporphyrin thin film by vapor annealing using fluorine containing solvent

et al. 2018

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The solvent vapor annealing (SVA) technique is one of the useful post processing techniques of a thin film, which is an alternative technique of the thermal annealing one. SVA has a great advantage that the molecular rearrangement in the film is made moderately by employing an appropriate solvent without the sample heating. The moderate processing is expected to yield a benefit that the molecular coalescence would be suppressed, which would readily keep the continuous surface topography of the film during the annealing, and another benefit that a metastable structure would be obtained. To make the best use of the SVA-specific characteristics, in the present study, a material having a metastable structure is chosen. The sample is zinc tetraphenylporphyrin (ZnTPP) that yields a metastable triclinic crystal structure, which can easily be converted to a monoclinic crystal structure by thermal annealing. A triclinic-structure film of ZnTPP by the combination of a wet process and the thermal annealing has thus never been reported. By choosing a fluorine-containing solvent, which has a low affinity to ZnTPP, a triclinicstructure film has first been obtained by a wet process while the surface continuity is protected.

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Analysis of the Molecular Orientation of Poly(3-hexylthiophene) on Silicon Treated with Silane Coupling Agents, by Infrared p-Polarized Multiple-angle Incidence Resolution Spectrometry

Cited by 4 publications

References 46 publications

Progress on highly proton-conductive polymer thin films with organized structure and molecularly oriented structure

Progress on highly proton-conductive polymer thin films with organized structure and molecularly oriented structure

Multiple-angle incidence resolution spectrometry: applications in nanoarchitectonics and applied physics

Structure control of a zinc tetraphenylporphyrin thin film by vapor annealing using fluorine containing solvent

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