Effect of TiO2 nanoparticles on energy transfer mechanism in ternary nanocomposite conjugated polymer blend

Al-Bati, Sameer; Jumali, Mohammad Hafizuddin Hj; Ibtehaj, Khatatbeh; Al‐Asbahi, Bandar Ali

doi:10.1016/j.ijleo.2021.167718

Cited by 4 publications

(4 citation statements)

References 24 publications

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“…al examined the effect of TiO 2 content on the energy transfer mechanism in a ternary blend consisting of poly(9,9-dioctylfluorene-2,7-diyl) (PFO), MEH-PPV and poly 9,9-dioctylfluorenealt-benzothiadiazole (F8BT). [13] Al-Asbahi et. al observed a dynamic quenching process in MEH-PPV with the introduction of SiO 2 /TiO 2 nanocomposite due to charge transfer.…”

Section: Introductionmentioning

confidence: 99%

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Exciton Dynamics of MEH‐PPV polymer based Nanocomposites: Effect of Molecular Orbital Energy Levels of Nanoparticles**

Kumar

Periyasamy

2022

ChemistrySelect

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Exploring and investigating the strategies to improve quantum efficiency and photostability of light‐emitting polymers in polymer light‐emitting diodes is significantly an important topic of research. Thus this study endeavours towards the determination of the role of molecular orbital energy levels of metal oxide nanoparticles on the performance characteristics of hybrid nanocomposites. This work attempts to vary the proportions of zirconium dioxide (ZrO2) nanoparticles in nanocomposites of poly[2‐methoxy‐5‐(2’‐ethylhexyloxy)‐1,4‐phenylenevinylene] (MEH‐PPV), which leads to a six‐fold enhancement of luminescence quantum efficiency and increased radiative recombination rate due to an appropriate energy level alignment. An improvement in photostability was also reported due to a reduction in polymer chain defects, inhibition of moisture intervention and most importantly, impediment of the photo‐oxidation by controlling the triplet exciton dynamics. Thus, efforts are made to validate the role of energy levels of ZrO2 nanoparticles in improving the luminescence quantum efficiency and photostability of MEH‐PPV compared to ZnO incorporated MEH‐PPV.

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Section: Introductionmentioning

confidence: 99%

“…Al‐Bati et. al examined the effect of TiO 2 content on the energy transfer mechanism in a ternary blend consisting of poly(9,9‐dioctylfluorene‐2,7‐diyl) (PFO), MEH‐PPV and poly 9,9‐dioctylfluorene‐alt‐benzothiadiazole (F8BT) [13] . Al‐Asbahi et.…”

Section: Introductionmentioning

confidence: 99%

Exciton Dynamics of MEH‐PPV polymer based Nanocomposites: Effect of Molecular Orbital Energy Levels of Nanoparticles**

Kumar

Periyasamy

2022

ChemistrySelect

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“…18 Besides the enhancement of the emission from the CP blends, the optoelectronic properties and the energy transfer were improved by adding the NPs to the PFO\MEH-PPV blend. 4,19 Unfortunately, the enhancement was limited due to the high ability of the small-sized NPs to agglomerate. 20 The small particles tend to agglomerate and this agglomeration can be attributed to the high electrostatic force between the semiconducting particles.…”

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confidence: 99%

“…20 The small particles tend to agglomerate and this agglomeration can be attributed to the high electrostatic force between the semiconducting particles. 19 This force comes from the high dielectric constant of TiO 2 nanoparticles which increases the dipole moment of the particles. The attraction between the dipoles will increase the electrostatic force.…”

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confidence: 99%

Effect of Solvent on Optical Properties and Surface Topography of Nanocomposite Conjugated Polymer Thin Film

Al-Bati

Aljboor

Ibtehaj

et al. 2022

ECS J. Solid State Sci. Technol.

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The addition of TiO2 nanoparticles (NPs) to a white-emission conjugated polymer (CP) blend of poly(9,9-dioctylfluorene-2,7-diyl) (PFO) and poly(2-methoxy-5(2-ethylhexyl)−1,4-phenylenevinylene (MEH-PPV) enhanced the optical properties. However, the agglomeration of the nanoparticles restricted enhancement. This drawback was successfully overcome in this study. The highly polar solvent chloroform was mixed with toluene and used to prepare thin films of the blends. Solution blending and spin-coating techniques were used to prepare thin films with different TiO2 nanoparticle contents. In addition, pure toluene and chloroform were investigated as solvents for the nanocomposite blend. These three cases were compared by studying the emission spectra, absorption spectra, Commission Internationale d’Eclairage coordinates (CIE), field emission scanning electron microscopy (FE-SEM) images and scanning probe microscope (SPM) images. The average roughness, quenching constant, and energy transfer probability were calculated. The optimum physical properties of the thin film were achieved using nanoparticles at 15wt% and applied to the binary blend with a mixture of equal amounts of toluene and chloroform. Although chloroform is better for nanoparticle distribution, toluene is mandatory for obtaining the highest yield of PFO.

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Titanium nanoparticles bonded polyacrylates with enhanced properties fabricated using DLP 3D printing

Ganesamoorthy,

Prabhakaran,

Kanemoto

et al. 2024

J Polym Res

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Effect of TiO2 nanoparticles on energy transfer mechanism in ternary nanocomposite conjugated polymer blend

Cited by 4 publications

References 24 publications

Exciton Dynamics of MEH‐PPV polymer based Nanocomposites: Effect of Molecular Orbital Energy Levels of Nanoparticles**

Exciton Dynamics of MEH‐PPV polymer based Nanocomposites: Effect of Molecular Orbital Energy Levels of Nanoparticles**

Effect of Solvent on Optical Properties and Surface Topography of Nanocomposite Conjugated Polymer Thin Film

Titanium nanoparticles bonded polyacrylates with enhanced properties fabricated using DLP 3D printing

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