Tuning photophysical properties of PFO conjugated polymer for enhancing polymer light emitting diode performance via addition of SiO2/TiO2 nanocomposite

Al‐Asbahi, Bandar Ali

doi:10.1016/j.molstruc.2022.132946

Cited by 7 publications

(6 citation statements)

References 41 publications

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“…However, its optical and electrical properties need to be improved for many applications. Doping conjugated polymers with inorganic nanoparticles is an effective approach to modify and enhance their properties 3–6 . Zinc oxide nanostructures, especially when combined with carbon nanotubes, have shown promise for doping conjugated polymers due to their suitable energy levels, high surface area, and good optoelectronic properties 7 …”

Section: Introductionmentioning

confidence: 99%

“…The optical properties of conjugated polymers are closely related to their structure, morphology, and energetic states 8 . Upon doping with nanostructures, changes in the optoelectronic properties of the polymer can occur, which have implications for its performance in optoelectronic devices 5–7,9,10 . Velasco Davoise et al 10 revealed that doping poly(3‐hexylthiophene) with graphene led to improve its electrical mobility and optical properties.…”

Section: Introductionmentioning

confidence: 99%

“…Doping conjugated polymers with inorganic nanoparticles is an effective approach to modify and enhance their properties. [3][4][5][6] Zinc oxide nanostructures, especially when combined with carbon nanotubes, have shown promise for doping conjugated polymers due to their suitable energy levels, high surface area, and good optoelectronic properties. 7 The optical properties of conjugated polymers are closely related to their structure, morphology, and energetic states.…”

mentioning

confidence: 99%

“…8 Upon doping with nanostructures, changes in the optoelectronic properties of the polymer can occur, which have implications for its performance in optoelectronic devices. [5][6][7]9,10 Velasco Davoise et al 10 revealed that doping poly(3-hexylthiophene) with graphene led to improve its electrical mobility and optical properties. Hilal and Han 11 demonstrated an increase in the conductivity and power-conversion efficiency of organic solar cells by using PEDOT-PSS/graphene composite as a hole transport layer.…”

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confidence: 99%

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Studying the optoelectronic properties and emission quenching dynamics of poly‐TPD by incorporating ZnO nanoparticles and multiwalled carbon nanotubes

Al‐Asbahi

2023

J of Applied Polymer Sci

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In this study, the optoelectronic properties and emission dynamic quenching of poly‐TPD were investigated upon incorporating ZnO nanoparticles and multiwalled carbon nanotubes (MWCNTs). A solution blending method was utilized to successfully prepare poly‐TPD incorporated with various contents of ZnO/MWCNT nanocomposites. The optoelectronic properties of the nanocomposites were analyzed using UV–Vis and photoluminescence spectrophotometry. The incorporation of the nanocomposites resulted in a decrease in transmittance, reflectance, and absorption edge, indicating a reduction in the poly‐TPD's bandgap. Parameters such as extinction coefficient, Urbach energy, and charge carrier density also decreased with addition of the nanocomposites, suggesting increased scattering, disorder, and the presence of defect states. The decrease in bandgap from 2.970 to 2.852 eV with increasing the nanocomposite content confirmed the emergence of new electronic states. Furthermore, the nature of the transitions changed from direct allowed for pure poly‐TPD to direct forbidden upon incorporation of the nanocomposites. The inclusion of the nanocomposites also led to a decrease in refractive index and fluorescence intensity. The observed fluorescence quenching primarily exhibited dynamic characteristics, with a Stern–Volmer constant of 5.14 L/g and quenching rate constants surpassing the minimum threshold for efficient quenching. The increase in charge transfer rate constants with the nanocomposite content indicated enhanced quenching efficiency and charge transfer, likely due to the increased surface area and presence of defects. These findings suggest that poly‐TPD incorporated with ZnO/MWCNT nanocomposites displays promising properties for applications in optoelectronic devices.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Studying the optoelectronic properties and emission quenching dynamics of poly‐TPD by incorporating ZnO nanoparticles and multiwalled carbon nanotubes

Al‐Asbahi

2023

J of Applied Polymer Sci

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“…Several previous studies have reported on incorporation of TiO 2 , SiO 2 , and ZnO nanoparticles into a conducting polymer matrix [5][6][7][8][9]. These nanocomposites have shown positive effects on electronic and optical properties, as well as improved stability, which is crucial in organic devices.…”

Section: Introductionmentioning

confidence: 99%

Influence of ZnO/TiO₂ nanocomposite on optical and structural properties of OC₁C₁₀–PPV–DMP thin film

et al. 2023

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The photophysical properties of poly[2-methoxy-5-(3,7-dimethyl-octyloxy)-1,4-phenylenevinylene] – End capped with dimethylphenyl (DMP), OC1C10–PPV–DMP, were modified by incorporation various contents of the nanocomposites of both anatase TiO2 and wurtzite ZnO (ZTNCs). The solution blending method was employed to prepare the nanocomposite hybrids of OC1C10–PPV–DMP with ZTNCs before depositing them onto glass substrates. The optical parameters of the hybrid nanocomposite thin films were extracted from both absorption and photoluminescence spectra. XRD, FTIR, and FE-SEM revealed the good incorporation of ZTNC into the polymer matrix with the formation of a nanocomposite structure. By increasing the content of ZTNCs in the polymer matrix, the optical parameters of OC1C10–PPV–DMP such as energy band gap, energy tail, steepness parameter, and CIE chromatic coordinates were tuned. The incorporation of ZTNCs resulted in broadened and improved absorption and emission peaks of the polymer with a systematic shift for its corresponding maximum peaks. These unique findings are crucial for improving the performance of optoelectronic devices based on OC1C10–PPV–DMP/ZTNCs.

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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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Tuning photophysical properties of PFO conjugated polymer for enhancing polymer light emitting diode performance via addition of SiO2/TiO2 nanocomposite

Cited by 7 publications

References 41 publications

Studying the optoelectronic properties and emission quenching dynamics of poly‐TPD by incorporating ZnO nanoparticles and multiwalled carbon nanotubes

Studying the optoelectronic properties and emission quenching dynamics of poly‐TPD by incorporating ZnO nanoparticles and multiwalled carbon nanotubes

Influence of ZnO/TiO₂ nanocomposite on optical and structural properties of OC₁C₁₀–PPV–DMP thin film

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

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Tuning photophysical properties of PFO conjugated polymer for enhancing polymer light emitting diode performance via addition of SiO2/TiO2 nanocomposite

Cited by 7 publications

References 41 publications

Studying the optoelectronic properties and emission quenching dynamics of poly‐TPD by incorporating ZnO nanoparticles and multiwalled carbon nanotubes

Studying the optoelectronic properties and emission quenching dynamics of poly‐TPD by incorporating ZnO nanoparticles and multiwalled carbon nanotubes

Influence of ZnO/TiO2 nanocomposite on optical and structural properties of OC1C10–PPV–DMP thin film

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

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Influence of ZnO/TiO₂ nanocomposite on optical and structural properties of OC₁C₁₀–PPV–DMP thin film