Long-range dipole–dipole energy transfer enhancement via addition of SiO 2 /TiO 2 nanocomposite in PFO/MEH-PPV hybrid thin films

Bandar Ali Al-Asbahi, Saif M.H. Qaid, Mohammad Hafizuddin Jumali, Mohamad Saleh AlSalhi, Abdullah S. Aldwayyan

Research output: Contribution to journalArticle

Abstract

Different weight ratios of poly(9,9-dioctylfluorene-2,7-diyl) (PFO)/poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) hybrid thin films, with and without a SiO 2 /TiO 2 nanocomposite (NC), were successfully prepared using a solution blending method. All samples were deposited onto glass substrates by a spin coating technique to produce homogeneous thin films. The effect of the SiO 2 /TiO 2 NC on the enhancement of the energy transfer mechanism in the PFO/MEH-PPV hybrids was investigated. The energy transfer parameters were calculated on the basis of the absorption and emission measurements. The long-range dipole–dipole energy transfer (Förster type) between the acceptor and donor molecules was enhanced in the presence of the SiO 2 /TiO 2 NC in the hybrid thin films. The addition of the SiO 2 /TiO 2 NC in the PFO/MEH-PPV hybrids reduced the distance between the donor and acceptor molecules more than the individual addition of SiO 2 or TiO 2 nanoparticles. Moreover, the direct relationships between the acceptor contents and energy transfer parameters, such as the energy transfer radius (R DA ), energy transfer efficiency (η), and energy transfer probability (P DA ), were estimated using theoretical fittings.

Original languageEnglish
Article number47845
JournalJournal of Applied Polymer Science
Volume136
Issue number32
DOIs
Publication statusPublished - 20 Aug 2019

Fingerprint

Energy transfer
Nanocomposites
Thin films
Molecules
Coating techniques
Spin coating
poly(2-methoxy-5-(2'-ethylhexyloxy)-p-phenylenevinylene)
Nanoparticles
Glass
Substrates

Keywords

  • energy transfer
  • Förster-type
  • nanocomposite
  • PFO/MEH-PPV hybrids
  • thin films

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Long-range dipole–dipole energy transfer enhancement via addition of SiO 2 /TiO 2 nanocomposite in PFO/MEH-PPV hybrid thin films . / Al-Asbahi, Bandar Ali; Qaid, Saif M.H.; Jumali, Mohammad Hafizuddin; AlSalhi, Mohamad Saleh; Aldwayyan, Abdullah S.

In: Journal of Applied Polymer Science, Vol. 136, No. 32, 47845, 20.08.2019.

Research output: Contribution to journalArticle

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