Inhibition of dark quenching by TiO2 nanoparticles content in novel PFO/Fluorol 7GA hybrid

A new role to improve OLED performance

Bandar Ali Al-Asbahi, Mohammad Hafizuddin Jumali, Chi Chin Yap, Muhamad Mat Salleh, Mohamad Saleh Alsalhi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A new role of TiO2 nanoparticles as dark quenching inhibitors in poly(9,9′-di-n-octylfluorenyl-2.7-diyl) (PFO)/Fluorol 7GA blends prepared using solution blending method was investigated. The results showed simultaneous reduction in PFO and increment in Fluorol 7GA emissions thus confirms efficient energy transfer between these materials. Once Fluorol 7GA content exceeded 0.5 wt.%, the Fluorol 7GA emission decreased rather than increased due to dark quencher formation. The incorporation of TiO2 in the blends successfully inhibited the formation of dark quenchers. The maximum brightness and luminance efficiency were obtained at TiO2 contents of 25 and 15 wt.%, respectively.

Original languageEnglish
Pages (from-to)109-112
Number of pages4
JournalChemical Physics Letters
Volume570
DOIs
Publication statusPublished - 2013

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Organic light emitting diodes (OLED)
Quenching
quenching
Nanoparticles
nanoparticles
luminance
inhibitors
Luminance
brightness
energy transfer
Energy transfer
2-butyl-6-(butylamino)-1H-benzo(de)isoquinoline-1,3(2H)-dione

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Cite this

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title = "Inhibition of dark quenching by TiO2 nanoparticles content in novel PFO/Fluorol 7GA hybrid: A new role to improve OLED performance",
abstract = "A new role of TiO2 nanoparticles as dark quenching inhibitors in poly(9,9′-di-n-octylfluorenyl-2.7-diyl) (PFO)/Fluorol 7GA blends prepared using solution blending method was investigated. The results showed simultaneous reduction in PFO and increment in Fluorol 7GA emissions thus confirms efficient energy transfer between these materials. Once Fluorol 7GA content exceeded 0.5 wt.{\%}, the Fluorol 7GA emission decreased rather than increased due to dark quencher formation. The incorporation of TiO2 in the blends successfully inhibited the formation of dark quenchers. The maximum brightness and luminance efficiency were obtained at TiO2 contents of 25 and 15 wt.{\%}, respectively.",
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AU - Al-Asbahi, Bandar Ali

AU - Jumali, Mohammad Hafizuddin

AU - Yap, Chi Chin

AU - Mat Salleh, Muhamad

AU - Alsalhi, Mohamad Saleh

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AB - A new role of TiO2 nanoparticles as dark quenching inhibitors in poly(9,9′-di-n-octylfluorenyl-2.7-diyl) (PFO)/Fluorol 7GA blends prepared using solution blending method was investigated. The results showed simultaneous reduction in PFO and increment in Fluorol 7GA emissions thus confirms efficient energy transfer between these materials. Once Fluorol 7GA content exceeded 0.5 wt.%, the Fluorol 7GA emission decreased rather than increased due to dark quencher formation. The incorporation of TiO2 in the blends successfully inhibited the formation of dark quenchers. The maximum brightness and luminance efficiency were obtained at TiO2 contents of 25 and 15 wt.%, respectively.

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