Solvent‐Assisted Orientation of Poly(3‐hexylthiophene)‐Functionalized CdSe Nanorods Under an Electric Field

Chantarak, Sirinya; Liu, Feng; Emrick, Todd; Russell, Thomas P.

doi:10.1002/macp.201400188

Cited by 12 publications

(9 citation statements)

References 31 publications

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“…The interrelation between conformational characteristics of semiconducting organic polymers and their physico‐chemical parameters is still not fully understood; therefore, researchers are interested in using various methods to study a wide range of the parameters required for developing modern technologies. Over the past 5 years, a vast number of papers devoted to the studies of poly(3‐hexylthiophene) thin films and nanofibers based on this polymer by optical absorption spectroscopy, size exclusion chromatography (SEC), small‐angle X‐ray diffraction (XRD), atomic force microscopy, and transmission electron microscopy have been published . It is known that electric properties of thin films are directly related to their morphology.…”

Section: Introductionmentioning

confidence: 99%

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Hydrodynamic properties and conformation of poly(3-hexylthiophene) in dilute solutions

Yakimansky

Bushin

Безрукова

et al. 2016

J. Polym. Sci. Part B: Polym. Phys.

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Conducting polymers demonstrate low solubility in organic solvents. Introducing aliphatic substituents into polymer chains improves their solubility, but may also lead to changes in conformational characteristics of macromolecules. In the present work, the studies of hydrodynamic properties and conformational characteristics of comb-shaped poly(3-hexylthiophene) with aliphatic side substituents were carried out in chloroform solutions. Conformational analysis of the studied macromolecules was performed for the first time using homologous series with a wide range of molecular weights of the polymers in dilute solutions. The hydrodynamic properties of these macromolecules were interpreted using the worm-like spherocylinder model and the straight spherocylinder model. The projection of the monomer unit in the direction of the main polymer chain k 5 0.37 nm was determined experimentally. The following parameters of poly(3-hexylthiophene) were characterized and quantified: equilibrium rigidity (Kuhn segment length) ff 5 6.7 nm and hydrodynamic diameter of a polymer chain d 5 0.6 nm.

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Section: Introductionmentioning

confidence: 99%

“…Over the past 5 years, a vast number of papers devoted to the studies of poly(3-hexylthiophene) thin films and nanofibers based on this polymer by optical absorption spectroscopy, size exclusion chromatography (SEC), smallangle X-ray diffraction (XRD), atomic force microscopy, and transmission electron microscopy have been published. [20][21][22][23][24][25]…”

mentioning

confidence: 99%

Hydrodynamic properties and conformation of poly(3-hexylthiophene) in dilute solutions

Yakimansky

Bushin

Безрукова

et al. 2016

J. Polym. Sci. Part B: Polym. Phys.

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“…In general, high concentrations of TDPA promote the unidirectional growth of NRs, because of tight binding at (100) surface facets. [ 49,50 ]…”

Section: Resultsmentioning

confidence: 99%

CdSe/Ag Hybrid Aerogels: Integration of Plasmonic and Excitonic Properties of Metal–Semiconductor Nanostructures via Sol–Gel Assembly

Liyanage

Spera

Sarkar

et al. 2021

Advanced Photonics Research

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Metal–semiconductor hybrid nanomaterials (HNMs) exhibit unique properties that are distinct from individual nanostructures, leading to promising applications in optical technologies. The interfacial linkage of semiconductor and metal nanoparticles (NPs) via cogelation is an effective strategy to produce HNMs that show strong plasmon‐exciton coupling and improved physical properties. However, optical properties of these hybrids show little to no tunability. Herein, CdSe/Ag hybrid aerogels that show tunable absorption and photoluminescence (PL) are produced by cogelation of CdSe nanorods (NRs) or NPs with Ag hollow NPs. Hybrid electronic states are created by overlapping the excitonic absorption of CdSe NRs or NPs with the plasmonic absorption of Ag NPs. Physical characterization of the hybrids reveals an interconnected network of hexagonal CdSe and cubic Ag NPs, linked by Ag+ and Se2− surface species, without intervening ligands. PL spectra exhibit maxima at 640 and 720 nm for the CdSe NPs/Ag and CdSe NRs/Ag hybrids, respectively, corresponding to new radiative decay mechanisms. Time‐resolved PL data support the emergence of new radiative pathways, kinetically and energetically distinct from the excitonic and plasmonic properties of primary NPs. This new approach of metal–semiconductor hybrid formation through cogelation is intriguing for the design of high‐efficiency HNMs without detrimental PL quenching.

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“…It suggests the presence of hexagonal phase of CdSe. [32,33] The Cd3d and Se3d XPS spectra of CdSe/PAEK nanocomposite material are shown in Figure 4. The obtained CdSe/ PAEK nanocomposite contains doublet peaks in Cd3d region with the Cd3d 5/2 peak at 405.6 eV, and Cd3d 3/2 peak at 411.8 eV.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Study of the Thermally Stable Poly(arylene ether ketone) Nanohybrids Containing Cadmium Selenide Nanocrystals

Zhang

2021

ChemistrySelect

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In the present work, the novel nanohybrid material was synthesized with poly(arylene ether ketone) as the matrix. To investigate the effects of the various factors on the photoluminescence properties of the nanomaterial, a series of CdSe/ poly(arylene ether ketone) nanohybrids were obtained with the solvothermal synthesis method under different reaction times, Cd 2 + /selenourea ratios and polymer content. The formation of the CdSe nanocrystal was confirmed by fourier transform infrared spectroscopy (FTIR), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). According to the HRTEM images, the homogenous dispersion of nanoparticles was found in the nanohybrid material. The optical properties of this new material were investigated by UV-vis and photoluminescence (PL) spectroscopy. The differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) measurements had showed that the obtained material had excellent thermal properties. In summary, a series of novel CdSe/poly(arylene ether ketone) nanohybrid materials were obtained. Due to its good fluorescence and thermal properties, this material will have a broad potential application in area of optoelectronic devices.

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Solvent‐Assisted Orientation of Poly(3‐hexylthiophene)‐Functionalized CdSe Nanorods Under an Electric Field

Cited by 12 publications

References 31 publications

Hydrodynamic properties and conformation of poly(3-hexylthiophene) in dilute solutions

Hydrodynamic properties and conformation of poly(3-hexylthiophene) in dilute solutions

CdSe/Ag Hybrid Aerogels: Integration of Plasmonic and Excitonic Properties of Metal–Semiconductor Nanostructures via Sol–Gel Assembly

Synthesis and Study of the Thermally Stable Poly(arylene ether ketone) Nanohybrids Containing Cadmium Selenide Nanocrystals

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