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Enhancement of Photostability in Blue‐Light‐Emitting Polymers Doped with Gold Nanoparticles
Author(s) -
Park Jong Hyeok,
Lim Yong Taik,
Park O Ok,
Kim Young Chul
Publication year - 2003
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200390051
Subject(s) - colloidal gold , materials science , nanoparticle , doping , nanocomposite , polymer , band gap , visible spectrum , absorption (acoustics) , polymer nanocomposite , photochemistry , chemical engineering , nanotechnology , optoelectronics , chemistry , composite material , engineering
A dramatic increase in the photostability of a blue‐light‐emitting polymer, poly(9,9‐dioctylfluorene), was achieved by the addition of 5–10 nm gold nanoparticles. The optical absorption band of the gold nanoparticles was tuned to resonate the triplet exciton ground state bandgap energy of the polymer. Photo‐oxidation rate of poly(9,9‐dioctylfluorene) was effectively reduced by doping the polymer with very small amounts (≈10 −6 –10 −5 volume fraction) of the gold nanoparticles.Retarded photo‐oxidation in PDOF nanocomposite films with various doped gold nanoparticles.