Photophysical properties and energy transfer mechanism of PFO/Fluorol 7GA hybrid thin films

Bandar Ali Al-Asbahi, Mohammad Hafizuddin Jumali, Chi Chin Yap, Moayad Husein Flaifel, Muhamad Mat Salleh

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Photophysical properties of poly (9,9′-di-n-octylfluorenyl-2.7-diyl) (PFO)/2-butyl-6- (butylamino)benzo [de] isoquinoline-1,3-dione (Fluorol 7GA) and energy transfer between them have been investigated. In this work, both PFO and Fluorol 7GA act as donor and acceptor, respectively. Based on the absorption and luminescence measurements, the photophysical and energy transfer properties such as fluorescence quantum yield (Φf), fluorescence lifetime (τ), radiative rate constant (kr), non-radiative rate constant (knr), quenching rate constant (kSV), energy transfer rate constant (kET), energy transfer probability (PDA), energy transfer efficiency (η), critical concentration of acceptor (C o), energy transfer time (τET) and critical distance of energy transfer (Ro) were calculated. Large values of k SV, kET and Ro suggested that Förster-type energy transfer was the dominant mechanism for the energy transfer between the excited donor and ground state acceptor molecules. It was observed that the Förster energy transfer together with the trapping process are crucial for performance improvement in ITO/(PFO/Fluorol7GA)/Al device.

Original languageEnglish
Pages (from-to)57-65
Number of pages9
JournalJournal of Luminescence
Volume142
DOIs
Publication statusPublished - 2013

Fingerprint

Energy Transfer
Energy transfer
energy transfer
Thin films
thin films
Rate constants
Fluorescence
2-butyl-6-(butylamino)-1H-benzo(de)isoquinoline-1,3(2H)-dione
Luminescent Measurements
fluorescence
Personal digital assistants
Dione
Quantum yield
radiative lifetime
ITO (semiconductors)
Ground state
Luminescence
Quenching
quenching
trapping

Keywords

  • Energy transfer properties
  • Förster-type
  • Luminance efficiency
  • OLED

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Chemistry(all)
  • Biochemistry
  • Biophysics

Cite this

Photophysical properties and energy transfer mechanism of PFO/Fluorol 7GA hybrid thin films. / Al-Asbahi, Bandar Ali; Jumali, Mohammad Hafizuddin; Yap, Chi Chin; Flaifel, Moayad Husein; Mat Salleh, Muhamad.

In: Journal of Luminescence, Vol. 142, 2013, p. 57-65.

Research output: Contribution to journalArticle

Al-Asbahi, Bandar Ali ; Jumali, Mohammad Hafizuddin ; Yap, Chi Chin ; Flaifel, Moayad Husein ; Mat Salleh, Muhamad. / Photophysical properties and energy transfer mechanism of PFO/Fluorol 7GA hybrid thin films. In: Journal of Luminescence. 2013 ; Vol. 142. pp. 57-65.
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