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   Articles with "ladder type" as a keyword



Spiro‐Bridged Ladder‐Type Oligo(para‐phenylene)s: Fine Tuning Solid State Structure and Optical Properties

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recommendations! Published in 2017 at "Advanced Functional Materials"

DOI: 10.1002/adfm.201704077

Abstract: A set of ladder-type quaterphenyls with an incremental number of spiro-bifluorene units in the bridge positions as well as an in-plane bent quaterphenyl carrying all bridges on one and the same side of the ribbon… read more here.

Keywords: solid state; ladder type; state structure;

Quantum Transport Characteristics of Graphene Nanoribbon Devices with Ring and Ladder Type Channels Under Electrostatic Doping

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recommendations! Published in 2025 at "Annalen der Physik"

DOI: 10.1002/andp.202500099

Abstract: The electronic transmission properties of two‐terminal graphene nanoribbon (GNR) devices, featuring ring and ladder geometries with varying sizes, are investigated to understand the influence of explicit charge doping on their electrostatic control. The results indicate… read more here.

Keywords: transport; ladder type; ring ladder; graphene nanoribbon ... See more keywords
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Effects of finite bandwidth on atomic grating in a three level ladder type system

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recommendations! Published in 2020 at "Optics Communications"

DOI: 10.1016/j.optcom.2020.125881

Abstract: Abstract In this paper, we study the atomic grating produced by a three-level ladder type system which interacts with a strong standing microwave drive field of finite bandwidth. The upper levels of the atoms are… read more here.

Keywords: field; level ladder; three level; drive field ... See more keywords
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Single-strand and ladder-type polymeric acceptors based on regioisomerically-pure perylene diimides towards all-polymer solar cells

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recommendations! Published in 2019 at "Polymer"

DOI: 10.1016/j.polymer.2018.12.041

Abstract: Abstract Since dibromo perylene diimides (DBPDIs) contain two isomers that are difficult to separate, isomeric effect on properties and applications of PDI polymers has been rarely studied. Few ladder-type polymers have been used in organic… read more here.

Keywords: solar cells; regioisomerically pure; polymer solar; ladder type ... See more keywords
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Ladder-Type Dithienonaphthalene-Based Small-Molecule Acceptors for Efficient Nonfullerene Organic Solar Cells

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recommendations! Published in 2017 at "Chemistry of Materials"

DOI: 10.1021/acs.chemmater.7b02887

Abstract: Two novel small molecule acceptors (DTNIC6 and DTNIC8) based on a ladder-type dithienonaphthalene (DTN) building block with linear (hexyl) or branched (2-ethylhexyl) alkyl substituents are designed and synthesized. Both acceptors exhibit strong and broad absorption… read more here.

Keywords: organic solar; molecule acceptors; type dithienonaphthalene; small molecule ... See more keywords

In Situ Spectroscopic and Electrical Investigations of Ladder-type Conjugated Polymers Doped with Alkali Metals

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recommendations! Published in 2022 at "Macromolecules"

DOI: 10.1021/acs.macromol.2c01190

Abstract: Ladder-type conjugated polymers exhibit a remarkable performance in (opto)electronic devices. Their double-stranded planar structure promotes an extended π-conjugation compared to inter-ring-twisted analogues, providing an excellent basis for exploring the effects of charge localization on polaron… read more here.

Keywords: spectroscopy; type conjugated; situ spectroscopic; conjugated polymers ... See more keywords
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Synthesis and Characterization of Functionalizable Silsesquioxanes with Ladder-type Structures

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recommendations! Published in 2019 at "Organometallics"

DOI: 10.1021/acs.organomet.9b00597

Abstract: Novel tetravinyl- and tetraallyl-substituted laddersiloxanes were synthesized and characterized. It was shown that peripheral olefins could successfully undergo hydrosilylation quantitatively, poss... read more here.

Keywords: silsesquioxanes ladder; type structures; characterization functionalizable; ladder type ... See more keywords

Effective Synthesis of Ladder-type Oligo(p-aniline)s and Poly(p-aniline)s via Intramolecular SNAr Reaction.

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recommendations! Published in 2021 at "Organic letters"

DOI: 10.1021/acs.orglett.1c00363

Abstract: Symmetric ladder-type oligo(p-aniline)s and poly(p-aniline)s were successfully synthesized by an intramolecular ring closure in a highly efficient SNAr reaction from oligo(p-phenylene)s and poly(p-phenylene)s with fluorine (F) and secondary amine (NH) groups. Unlike Cadogan ring closure,… read more here.

Keywords: aniline; type oligo; aniline poly; reaction ... See more keywords

Synthesis of Ladder-Type 9,9'-Bifluorenylidene-Based Conjugated Oligomers via a Pd-Catalyzed Tandem Suzuki Coupling/Heck Cyclization Approach.

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recommendations! Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c02418

Abstract: For new ladder-type oligomers and polymers with versatile and robust synthetic strategies, in this study, four fully conjugated ladder-type overcrowded 9,9'-bifluorenylidene-based compounds and oligomers (BFY1, BFY2, BFY3, and BFY4) were synthesized via a Pd-catalyzed tandem… read more here.

Keywords: bifluorenylidene based; spectroscopy; via catalyzed; ladder ... See more keywords

Synthesis of Regular Ladder-Type Fluorenylidene-Xanthene Oligomers via Nucleophilic Aromatic Substitution Reaction.

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recommendations! Published in 2024 at "Organic letters"

DOI: 10.1021/acs.orglett.4c03779

Abstract: Fluorenylidene-xanthene and related polycyclic systems are typical examples of bistricyclic aromatic enes (BAEs); however, polycyclic systems of fluorenylidene-xanthene are relatively scarce. Here we synthesized a series of novel ladder-type polycyclic systems containing fluorenylidene-xanthene units, differing… read more here.

Keywords: reaction; nucleophilic aromatic; fluorenylidene xanthene; ladder type ... See more keywords

The Crucial Role of Fluorine in Fully Alkylated Ladder Type Carbazole Based Non-fullerene Organic Solar Cells.

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recommendations! Published in 2020 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.0c00981

Abstract: Two fused ladder type non-fullerene acceptors, DTCCIC and DTCCIC-4F, based on an electron-donating alkylated dithienocyclopentacarbazole core flanked by electron-withdrawing non-fluorinated or fluorinated 1,1-dicyanomethylene-3-indanone (IC or IC-4F), are prepared and utilized in organic solar cells (OSCs).… read more here.

Keywords: organic solar; based non; non fullerene; ladder type ... See more keywords