Electron beam resists produced from monomer-polymer Langmuir-Blodgett films

Fariss, G.; Lando, J. B.; Rickert, S. E.

doi:10.1016/0040-6090(83)90397-8

Cited by 64 publications

(8 citation statements)

References 2 publications

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“…This can be related to the addition of SA required to fabricate LB films of these low‐bandgap polymers, while for drop‐cast deposition this is not a necessary step. Despite the lower conductivity achieved here for the LB mixed films compared to the drop‐cast neat films, it is important to mention that the LB technique allows thickness control of the films, a crucial factor in the performance or characterization of some devices, and requires less polymer to fabricate the films, both issues for spin‐coating or drop‐cast techniques. Furthermore, fine‐tuning the molecular architecture of thin films may lead to improvements in device efficiency depending on the intended application.…”

Section: Resultsmentioning

confidence: 90%

Langmuir and Langmuir–Blodgett films of low‐bandgap polymers

Braunger

Silva

Awada

et al. 2018

Polymer International

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Low‐bandgap conjugated polymers have provided a considerable increase in organic photovoltaic efficiencies, however, an understanding of class‐specific nanostructures, necessary to further improve device qualities, remains scarce. Their self‐assembly and associated electronic behaviors in Langmuir−Blodgett (LB) films are used here to provide relationships specific to each polymer, clarifying their structure−property characteristics. The behavior of two low‐bandgap polymers based on cyclopentadithiophene (PCPDTBT) and dithienosilole (Si‐PCPDTBT) units in the Langmuir trough were investigated and it is shown that it is possible to fabricate nanostructured films of low‐bandgap polymers on solid substrates with the LB deposition technique. The polymers were mixed with amphiphilic molecules at well‐defined concentrations to improve the formation of the LB films. The polymers were also deposited by drop‐casting and LB techniques onto interdigitated electrodes to evaluate their electrical properties, and the LB films were characterized for their optical and morphological properties. It was found that both LB and drop‐cast films of PCPDTBT showed higher electrical conductivities than those of Si‐PCPDTBT. Importantly, LB films resulted in higher electrical conductivities – by an order of magnitude − compared to their equivalent mixtures with stearic acid in drop‐cast films, although drop‐cast films without stearic acid gave higher conductivities. This fine‐tuning of the molecular architectures of the films is thus demonstrated to directly affect the physical properties and may lead to an improvement in device efficiencies in future applications. © 2018 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 90%

Langmuir and Langmuir–Blodgett films of low‐bandgap polymers

Braunger

Silva

Awada

et al. 2018

Polymer International

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“…Conventional spinner coating method is not sufficient to fabricate patterns as fine as a 0.25 ~tm, because striation occurs during the spinner coating process. Recent studies to obtain sub-micron patterns on the LB films inidcate that thinner LB films are useful for resist to give finer resolution of the pattern [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Radiation effect of a high energy electron beam on thin films of saturated and unsaturated fatty acids

Ogawa

Tamura

Hatada³

et al. 1988

Colloid & Polymer Sci

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Studies have been carried out on electron beam induced polymerization of LB films of saturated and unsaturated long chain aliphatic acids, in an attempt to obtain informarion about the dose dependence of conversion in relation to molecular arrangement. The results indicate that polymerization of unsaturated alipharic acid LB films occurred when irradiation was carried out in a nitrogen atmosphere and that the LB films of a disordered state are more sensitive to radiation than tightly packed LB films.

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“…Langmuir‐Blodgett deposition method (LB) is used to transfer Langmuir monolayers of amphiphilic molecules onto hydrophilic substrate such as glass and quartz14 semi‐conductors,15–17 mica18, 19 and oxidized metal surfaces 20. LB method is also effective for transferring monolayers on hydrophobic substrates such as hydrogen terminated or silanized Si21, 22 or silanized glass 23. Several investigations of gramicidin films at the air water interface have been conducted.…”

Section: Introductionmentioning

confidence: 99%

Potentiometric Detection of K⁺ Ions Using Gramicidin‐Ionophore/Lipid Bilayer Assembly on Polyaniline Electrode

Larrieux

Abrou

Levón

2011

Macromolecular Symposia

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Organic electronics have their advantage over traditional silicon or inorganic electrodes in their easy processing and flexibility. For instance, polyaniline has shown to be promising electrode material for various sensing opportunities including as a use of pH-meter. As the ion-to-electrode transduction may be optimal in these organic materials with high surface area and controllable electric double layer, selectivity has often been approached with the use of ionophores. We have inserted a gramicidin ionophore in a lipid bilayer assembled on polyaniline surface and measured successfully K þ ion concentration potentiometrically.

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Electron beam resists produced from monomer-polymer Langmuir-Blodgett films

Cited by 64 publications

References 2 publications

Langmuir and Langmuir–Blodgett films of low‐bandgap polymers

Langmuir and Langmuir–Blodgett films of low‐bandgap polymers

Radiation effect of a high energy electron beam on thin films of saturated and unsaturated fatty acids

Potentiometric Detection of K⁺ Ions Using Gramicidin‐Ionophore/Lipid Bilayer Assembly on Polyaniline Electrode

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Electron beam resists produced from monomer-polymer Langmuir-Blodgett films

Cited by 64 publications

References 2 publications

Langmuir and Langmuir–Blodgett films of low‐bandgap polymers

Langmuir and Langmuir–Blodgett films of low‐bandgap polymers

Radiation effect of a high energy electron beam on thin films of saturated and unsaturated fatty acids

Potentiometric Detection of K+ Ions Using Gramicidin‐Ionophore/Lipid Bilayer Assembly on Polyaniline Electrode

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Potentiometric Detection of K⁺ Ions Using Gramicidin‐Ionophore/Lipid Bilayer Assembly on Polyaniline Electrode