Electrochemical and optical studies of the band gaps of alternating polyfluorene copolymers

Shimelis Admassie; Olle Inganaes; Wendimagegn Mammo; Erik Per Perzon; Mats Andersson

Electrochemical and optical studies of the band gaps of alternating polyfluorene copolymers
Artikel i vetenskaplig tidskrift, 2006

The electrochem. and optical properties of alternating polyfluorene copolymers with low band gaps were detd. These polymers incorporated fluorene units alternating with groups including electron-withdrawing (A) and electron-donating (D) groups in donor-acceptor-donor (DAD) sequence to achieve the lowering of band gaps. The polymers were solvent-casted on Pt disk electrode and the band gaps were estd. from cyclic voltammetry (CV). These values were compared with values obtained from optical absorption measurements. Although the electrochem. detd. band gaps are slightly higher than the optical band gap in most cases, values are well correlated. The values of the band gaps detd. range from 2.1 to 1.3 eV. [on SciFinder (R)]

electrochem. and optical studies of band gaps of alternating polyfluorene copolymers)

Reduction potential

electrochem optical band gap polyfluorene

Band gap (electrochem.

Oxidation potential

Band gap (optical

Cyclic voltammetry

UV and visible spectra (electrochem. and optical studies of band gaps of alternating polyfluorene copolymers)

Författare

Shimelis Admassie

Olle Inganaes

Wendimagegn Mammo

Forskning Andra publikationer

Erik Per Perzon

Chalmers, Kemi- och bioteknik, Polymerteknologi

Forskning Andra publikationer

Mats Andersson

Chalmers, Kemi- och bioteknik, Polymerteknologi

Forskning Andra publikationer

Synthetic Metals

Vol. 156 7-8 614-623

Ämneskategorier

Polymerkemi

Den kondenserade materiens fysik

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Skapat

2017-10-06

Electrochemical and optical studies of the band gaps of alternating polyfluorene copolymers Artikel i vetenskaplig tidskrift, 2006

Författare

Shimelis Admassie

Olle Inganaes

Wendimagegn Mammo

Erik Per Perzon

Mats Andersson

Synthetic Metals

Ämneskategorier

Mer information

Skapat

Electrochemical and optical studies of the band gaps of alternating polyfluorene copolymers
Artikel i vetenskaplig tidskrift, 2006