2-Aryl-2<i>H</i>-benzotriazoles as Building Blocks for New Low-Bandgap Poly(arylene−ethynylene)s

Wettach, Henning; Pasker, Felix M.; Höger, Sigurd

doi:10.1021/ma802127q

Cited by 28 publications

(29 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…12 Hoger et al reported the synthesis of orange-red polymers 12 and 13 as the building blocks for low bandgap poly(arylene-ethynylene)s with 2.35 and 2.32 eV band gaps respectively. 17 Red shifted visible absorption (40-50 nm) compared to the alkyl substituted 11 13 can be attributed to the increase in p-stacking due to phenyl pendant group. Those polymers were not characterized in detail in terms of their optoelectronic properties however; they would be great candidates for OSCs and/or OLEDs.…”

Section: Electrochromics (Ecs)mentioning

confidence: 99%

“…22 Compared to others (14-18) 19 showed a high energy absorption with a negligibly weak intensity which indicates that the polymer have a dominant donor character rather than DA as was the case for BIm bearing polymers. 29 BIm and EDOT containing polymers [16][17][18] are great examples of the fact that the substituent is affecting the entire electronic and optical properties in such polymers, i.e. fine color tuning can be achieved with different substituent groups.…”

Section: Electrochromics (Ecs)mentioning

confidence: 99%

See 1 more Smart Citation

Benzotriazole containing conjugated polymers for multipurpose organic electronic applications

2011

View full text Add to dashboard Cite

Benzotriazole (BTz) containing polymers have recently emerged in organic electronic applications and they are increasingly attracting a great deal of attention. These polymers are reviewed from a general perspective in terms of their potential use in three main fields, electrochromics (ECs), organic solar cells (OSCs) and organic light emitting diodes (OLEDs). In order to have a better insight into the properties of these polymers, they were compared with similar polymers. Good solubility, optical and electronic properties and synthetic availability make them multipurpose materials. They combine many desired properties in polymers and their use in different device applications is examined in detail.

show abstract

Section: Electrochromics (Ecs)mentioning

confidence: 99%

Section: Electrochromics (Ecs)mentioning

confidence: 99%

Benzotriazole containing conjugated polymers for multipurpose organic electronic applications

2011

View full text Add to dashboard Cite

show abstract

“…Reagents were purchased at reagent grade from commercial sources and used without further purification. 1 a ‐ c were prepared according to literature procedures 41. All air‐sensitive reactions were carried out using standard Schlenk techniques under Argon.…”

Section: Methodsmentioning

confidence: 99%

“…In our previous work we already demonstrated that the absorption properties and orbital alignment of the benzotriazole unit can be fine‐tuned through functionalization of an aryl group attached in 2‐position 41, 42. Here, we investigate the possibility to fine‐tune the absorption and energy levels in arylbenzotriazole‐fluorene copolymers to elucidate the applicability of the arylbenzotriazole building block in OPV devices and the impact of structural changes on solar cell performance.…”

Section: Introductionmentioning

confidence: 95%

Structure and properties of PMP foams doped with Cu nanopowders

Zhang

Luo

et al. 2006

J of Applied Polymer Sci

View full text Add to dashboard Cite

Poly-4-methyl-1-pentene (PMP) foams doped with Cu nanopowders have been prepared by thermally induced phase separation. Ultrasonic dispersal was exploited to increase dispersion uniformity of Cu nanopowders in the foam skeleton. With increase in the concentration of Cu nanopowders, the structure of the doped PMP foams becomes finer and the size of cells, smaller. The modulus data of the doped foams described by a scaling constant larger than two significantly overestimate the predicted value. These indicate two roles of Cu nanopowders in PMP foams: fortifiers of foam structure and nuclei in polymer crystallization.

show abstract

“…The topologies of the Frontier Molecular Orbitals (FMO) are very similar in compounds 7 a-d. [31] The self-assembly of compounds 7 was achieved by the slow diffusion technique using CHCl 3 as a good solvent and a variety of poor solvents such as acetonitrile, hexane or methanol. [30] Furthermore, the introduction of methoxy substituents only affects the value of the HOMO and this leads to a decrease in the bandgap.…”

Section: Alkynyl-2h-benzo[d][123]triazolesmentioning

confidence: 99%

Self‐Assembled Alkynyl Azoles and Benzoazoles as Colored Optical Waveguides

Torres‐Moya

Martín

Díaz‐Ortiz

et al. 2018

Israel Journal of Chemistry

View full text Add to dashboard Cite

Different alkynyl azoles and benzoazoles have been synthesized in good yields by carbon‐carbon coupling reactions. The self‐assembly of some of these compounds by the slow diffusion technique led to well‐defined ribbons and needle‐like aggregates. The X‐ray study of some materials showed that the CH‐π interactions involving the C≡C triple bond and the heteroatoms induce aggregation along with H‐bonds due to the methoxy groups. A fluorescence and confocal optical microscopy study of most of the aggregates indicated optical waveguide behavior with different colors.

show abstract

2-Aryl-2H-benzotriazoles as Building Blocks for New Low-Bandgap Poly(arylene−ethynylene)s

Cited by 28 publications

References 20 publications

Benzotriazole containing conjugated polymers for multipurpose organic electronic applications

Benzotriazole containing conjugated polymers for multipurpose organic electronic applications

Structure and properties of PMP foams doped with Cu nanopowders

Self‐Assembled Alkynyl Azoles and Benzoazoles as Colored Optical Waveguides

Contact Info

Product

Resources

About