Bicolor Pixels from a Single Active Molecular Material by Surface‐Tension‐Driven Deposition

Viola, Ilenia; Sala, Fabio Della; Piacenza, Manuel; Favaretto, Laura; Gazzano, Massimo; Anni, M.; Barbarella, Giovanna; Cingolani, R.; Gigli, Giuseppe

doi:10.1002/adma.200602002

Cited by 19 publications

(20 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This compound has also been demonstrated to form bicolour fluorescent pixels by surface-tension-driven deposition. [23] To evaluate their semiconducting properties, all the compounds were used as active layers in bottom-contact FETs. Moreover, owing to the ability of DTT5 to form large domains upon annealing at about 135 8C and the possibility of freezing these ordered domains at room temperature (Figure 1), we also performed preliminary tests to compare the electrical conductivity of as-cast DTT5 films with those of annealed samples.…”

mentioning

confidence: 99%

Liquid‐Crystalline Rigid‐Core Semiconductor Oligothiophenes: Influence of Molecular Structure on Phase Behaviour and Thin‐Film Properties

Melucci

Favaretto

Bettini

et al. 2007

Chemistry A European J

View full text Add to dashboard Cite

The design, synthesis and properties of liquid-crystalline semiconducting oligothiophenes containing dithienothiophene (DTT), benzothiadiazole (BTZ) and carbazole (CBZ) rigid cores are described. The effect of molecular structure (shape, size and substitution) on their thermal behaviour and electrical properties has been investigated. Polarised optical microscopy (POM) and differential scanning calorimetry (DSC) analyses have revealed highly ordered smectic mesophases for most of the newly synthesised compounds. X-ray diffraction (XRD) studies performed at various temperatures have shown that the smectic order is retained in the crystalline state upon cooling across the transition temperature, affording cast films with a more favourable morphology for FET applications.

show abstract

mentioning

confidence: 99%

Liquid‐Crystalline Rigid‐Core Semiconductor Oligothiophenes: Influence of Molecular Structure on Phase Behaviour and Thin‐Film Properties

Melucci

Favaretto

Bettini

et al. 2007

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…General Aspects LCW can also be applied using a floating grid as stamp (GA-LCW), in which case the process has been also named ''grid-assisted deposition'' [13] or ''surface-tension-driven deposition.'' [60] This configuration is particularly attractive for its simplicity, versatility, and the possibility of use in all laboratories, without any special set-up or instrumentation.…”

Section: Grid-assisted Lithographically Controlledmentioning

confidence: 99%

“…[60] They succeeded in controlling both the conformation and the supramolecular arrangement of a thiophene-based molecular material (DTT7Me) [64] by exploiting the amplification of the instability phenomena during a dewetting process. The conformational flexibility of DTT7Me, typical of several substituted oligothiophenes, [65] rendered it possible to achieve the coexistence of two regularly alternating regions on a micrometer scale, emitting light at different wavelengths (see Fig.…”

Section: Organic Semiconductorsmentioning

confidence: 99%

Nanopatterning Soluble Multifunctional Materials by Unconventional Wet Lithography

2009

View full text Add to dashboard Cite

Molecular multifMolecular multifunctional materials have potential applications in many fields of technology, such as electronics, optics and optoelectronics, information storage, sensing, and energy conversion and storage. These materials are designed exhibit enhanced properties, and at the same time are endowed with functional groups that control their interactions, and hence self-organization, into a variety of supramolecular architectures. Since most of the multifunctional materials are soluble, lithographic methods suitable for solutions are attracting increasing interest for the manufacturing of the new materials and their applications. The aim of this paper is to highlight some of the recent advances of solution-based fabrication of multifunctional materials. We explain and examine the principles, processes, materials, and limitations of this class of patterning techniques, which we term unconventional wet lithographies (UWLs). We describe their ability to yield patterns and structures whose feature sizes range from nanometers to micrometers. In the following sections, we focus our attention on micromolding in capillaries, lithographically controlled wetting, and grid-assisted deposition, the most used methods demonstrated to lead to fully operating devices

show abstract

“…Moreover, wetting or dewetting phenomena might occur depending on the wettability of the substrate with respect to the deposited solution. GAD has been successfully used for the spatial confinement of electroluminescent materials [19] and for the fabrication of bi-colored pixel structures based on a luminescent organic molecular material [24].…”

Section: Introductionmentioning

confidence: 99%

Influence of the substrate hydrophilicity on the grid assisted deposition of tris-(8-hydroxyquinolinato) aluminum(III) thin films

2009

View full text Add to dashboard Cite

Bicolor Pixels from a Single Active Molecular Material by Surface‐Tension‐Driven Deposition

Cited by 19 publications

References 41 publications

Liquid‐Crystalline Rigid‐Core Semiconductor Oligothiophenes: Influence of Molecular Structure on Phase Behaviour and Thin‐Film Properties

Liquid‐Crystalline Rigid‐Core Semiconductor Oligothiophenes: Influence of Molecular Structure on Phase Behaviour and Thin‐Film Properties

Nanopatterning Soluble Multifunctional Materials by Unconventional Wet Lithography

Influence of the substrate hydrophilicity on the grid assisted deposition of tris-(8-hydroxyquinolinato) aluminum(III) thin films

Contact Info

Product

Resources

About