Influence of TiO2 nanoparticles on enhancement of optoelectronic properties of PFO-based light emitting diode

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Abstract

Improvement on optoelectronic properties of poly (9,9′-di-n- octylfluorenyl-2.7-diyl)- (PFO-) based light emitting diode upon incorporation of TiOnanoparticles (NPs) is demonstrated. The PFO/TiOnanocomposites with different weight ratios between 5 and 35 wt.% were prepared using solution blending method before they were spin coated onto Indium Tin Oxide substrate. Then a thin Al layer was deposited onto the nanocomposite layer to act as top electrode. The nanocomposites were tested as emissive layer in organic light emitting diodes (OLEDs). The TiONPs played the most crucial role in facilitating charge transport and electrical injection and thus improved device performance in terms of turn-on voltage, electroluminescence spectra (EL), luminance, and luminance efficiency. The best composition was OLED with 5 wt.% TiONPs content having moderate surface roughness and well distribution of NPs. The device performance was reduced at higher TiONPs content due to higher surface roughness and agglomeration of TiONPs. This work demonstrated the importance of optimum TiONPs content with uniform distribution and controlled surface roughness of the emissive layer for better device performance.

Original languageEnglish
Article number561534
JournalJournal of Nanomaterials
Volume2013
DOIs
Publication statusPublished - 2013

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Optoelectronic devices
Light emitting diodes
Surface roughness
Organic light emitting diodes (OLED)
Nanoparticles
Luminance
Nanocomposites
Electroluminescence
Tin oxides
Indium
Charge transfer
Agglomeration
Electrodes
Electric potential
Substrates
Chemical analysis
indium tin oxide

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

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title = "Influence of TiO2 nanoparticles on enhancement of optoelectronic properties of PFO-based light emitting diode",
abstract = "Improvement on optoelectronic properties of poly (9,9′-di-n- octylfluorenyl-2.7-diyl)- (PFO-) based light emitting diode upon incorporation of TiOnanoparticles (NPs) is demonstrated. The PFO/TiOnanocomposites with different weight ratios between 5 and 35 wt.{\%} were prepared using solution blending method before they were spin coated onto Indium Tin Oxide substrate. Then a thin Al layer was deposited onto the nanocomposite layer to act as top electrode. The nanocomposites were tested as emissive layer in organic light emitting diodes (OLEDs). The TiONPs played the most crucial role in facilitating charge transport and electrical injection and thus improved device performance in terms of turn-on voltage, electroluminescence spectra (EL), luminance, and luminance efficiency. The best composition was OLED with 5 wt.{\%} TiONPs content having moderate surface roughness and well distribution of NPs. The device performance was reduced at higher TiONPs content due to higher surface roughness and agglomeration of TiONPs. This work demonstrated the importance of optimum TiONPs content with uniform distribution and controlled surface roughness of the emissive layer for better device performance.",
author = "Al-Asbahi, {Bandar Ali} and Jumali, {Mohammad Hafizuddin} and Yap, {Chi Chin} and {Mat Salleh}, Muhamad",
year = "2013",
doi = "10.1155/2013/561534",
language = "English",
volume = "2013",
journal = "Journal of Nanomaterials",
issn = "1687-4110",
publisher = "Hindawi Publishing Corporation",

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TY - JOUR

T1 - Influence of TiO2 nanoparticles on enhancement of optoelectronic properties of PFO-based light emitting diode

AU - Al-Asbahi, Bandar Ali

AU - Jumali, Mohammad Hafizuddin

AU - Yap, Chi Chin

AU - Mat Salleh, Muhamad

PY - 2013

Y1 - 2013

N2 - Improvement on optoelectronic properties of poly (9,9′-di-n- octylfluorenyl-2.7-diyl)- (PFO-) based light emitting diode upon incorporation of TiOnanoparticles (NPs) is demonstrated. The PFO/TiOnanocomposites with different weight ratios between 5 and 35 wt.% were prepared using solution blending method before they were spin coated onto Indium Tin Oxide substrate. Then a thin Al layer was deposited onto the nanocomposite layer to act as top electrode. The nanocomposites were tested as emissive layer in organic light emitting diodes (OLEDs). The TiONPs played the most crucial role in facilitating charge transport and electrical injection and thus improved device performance in terms of turn-on voltage, electroluminescence spectra (EL), luminance, and luminance efficiency. The best composition was OLED with 5 wt.% TiONPs content having moderate surface roughness and well distribution of NPs. The device performance was reduced at higher TiONPs content due to higher surface roughness and agglomeration of TiONPs. This work demonstrated the importance of optimum TiONPs content with uniform distribution and controlled surface roughness of the emissive layer for better device performance.

AB - Improvement on optoelectronic properties of poly (9,9′-di-n- octylfluorenyl-2.7-diyl)- (PFO-) based light emitting diode upon incorporation of TiOnanoparticles (NPs) is demonstrated. The PFO/TiOnanocomposites with different weight ratios between 5 and 35 wt.% were prepared using solution blending method before they were spin coated onto Indium Tin Oxide substrate. Then a thin Al layer was deposited onto the nanocomposite layer to act as top electrode. The nanocomposites were tested as emissive layer in organic light emitting diodes (OLEDs). The TiONPs played the most crucial role in facilitating charge transport and electrical injection and thus improved device performance in terms of turn-on voltage, electroluminescence spectra (EL), luminance, and luminance efficiency. The best composition was OLED with 5 wt.% TiONPs content having moderate surface roughness and well distribution of NPs. The device performance was reduced at higher TiONPs content due to higher surface roughness and agglomeration of TiONPs. This work demonstrated the importance of optimum TiONPs content with uniform distribution and controlled surface roughness of the emissive layer for better device performance.

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