Singlet Exciton Delocalization in Gold Nanoparticle-Tethered
Poly(3-hexylthiophene) Nanofibers with Enhanced Intrachain Ordering
Posted on 2017-10-18 - 19:14
We
fabricated hybrid poly(3-hexylthiophene) nanofibers (P3HT NFs)
with rigid backbone organization through the self-assembly of P3HT
tethered to gold NPs (P3HT-Au NPs) in an azeotropic mixture of tetrahydrofuran
and chloroform. We found that the rigidity of the P3HT chains derives
from the tethering of the P3HT chains to the Au NPs and the control
of the solubility of P3HT in the solvent. This unique nanostructure
of hybrid P3HT NFs self-assembled in an azeotropic mixture exhibits
significantly increased delocalization of singlet (S1)
excitons compared to those of pristine and hybrid P3HT NFs self-assembled
in a poor solvent for P3HT. This strategy for the self-assembly of
P3HT-Au NPs that generate long-lived S1 excitons can also
be applied to other crystalline conjugated polymers and NPs in various
solvents and thus enables improvements in the efficiency of optoelectronic
devices.
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Lee, Dongki; Sin, Dong Hun; Kim, Sang Woo; Lee, Hansol; Byun, Hye Ryung; Mun, Jungho; et al. (2017). Singlet Exciton Delocalization in Gold Nanoparticle-Tethered
Poly(3-hexylthiophene) Nanofibers with Enhanced Intrachain Ordering. ACS Publications. Collection. https://doi.org/10.1021/acs.macromol.7b01416
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AUTHORS (14)
DL
Dongki Lee
DS
Dong Hun Sin
SK
Sang Woo Kim
HL
Hansol Lee
HB
Hye Ryung Byun
JM
Jungho Mun
WS
Woong Sung
BK
Boseok Kang
DK
Dae Gun Kim
HK
Hyomin Ko
SS
Sung Won Song
MJ
Mun Seok Jeong
JR
Junsuk Rho
KC
Kilwon Cho