Optoelectrochemical properties of copolymer of terthiophene with 3,4-ethlenedioxypyrrole

“…The onset potentials for anodic current of BMP and EDOT are 1.18 V and 1.23 V, respectively. The difference of the onset oxidation potentials between monomer BPM and monomer EDOT is 0.05 V, implying that the electrochemical copolymerization is readily to be achieved [12]. The onset potential of the BMP/EDOT mixture is 1.21 V, which is between those of BMP and EDOT, indicating the existence of the interaction between two monomers in TBAP/ACN solution.…”

Section: Electrochemical Polymerizationmentioning

confidence: 96%

A Novel Electrochromic Copolymer of bis(4-(1H-pyrrol-1-yl)phenyl)methane and 3,4-ethylenedioxythiophene Prepared via Electrocopolymerization

Ouyang

Wang

et al. 2014

Integrated Ferroelectrics

View full text Add to dashboard Cite

2014) A NovelElectrochromic Copolymer of bis(4-(1H-pyrrol-1-yl)phenyl)methane and 3,4-ethylenedioxythiophene Prepared via Electrocopolymerization, A novel copolymer based on bis(4-(1H-pyrrol-1-yl)phenyl)methane (BPM) and 3,4-ethylenedioxythiophene (EDOT) is successfully synthesized and characterized through electrochemical methods. The polymer film exhibits three distinct colors (khaki, yellow green, midnight blue) under different potentials, reasonable optical contrast (10% at 422 nm, 5% at 1100 nm) and fast swiching time (2.6 s at 422 nm, 2.2 s at 1100 nm).Beside, SEM images illustrates that the copolymer film presents a much smoother surface than that of the respective homopolymers, which means that the copolymer film have great potential in electrochromic device fabrication.

show abstract

“…6,7 Electrochromism is defined as a property that is inherent in some materials and enables the materials to electrochemically switch between different colored states as a result of oxidation-reduction reactions. 8 The color change results from the generation of different electronic absorption bands that correspond to changes between at least two states. 9 The electronic absorption bathochromically shifts upon the oxidation process, and the color contrast between redox states is related to the polymer band gap.…”

Section: Introductionmentioning

confidence: 99%

Electrosynthesis and characterization of a novel electrochromic copolymer of N-methylpyrrole with cyclopenta[2,1-b:3,4-b′]dithiophene

Cheng

Zhao

et al. 2012

Polym J

View full text Add to dashboard Cite

Electrochemical copolymerization of N-methylpyrrole (NMPy) and cyclopenta[2,1-b:3,4-b 0 ]dithiophene (CPDT) was performed in acetonitrile containing sodium perchlorate as a supporting electrolyte. Characterization of the resultant copolymer P(CPDTco-NMPy) was performed by cyclic voltammetry, UV-vis spectroscopy, Fourier transform infrared spectroscopy and scanning electron microscopy. The P(CPDT-co-NMPy) film has distinct electrochromic properties and exhibits four different colors (reddish brown, pale khaki, pale sea green and light blue) under various potentials. The maximum contrast (DT%) and response time of the copolymer film at 750 nm were measured as 47.0% and 2.20 s, respectively. An electrochromic device (ECD) based on P(CPDT-co-NMPy) and poly(3,4-ethylenedioxythiophene) was constructed and characterized. The optical contrast (DT%) at 630 nm was found to be 40.2%, and the response time was measured as 1.77 s. The coloration efficiency of the device was calculated to be 476 cm 2 per C at 630 nm. The ECD also has satisfactory optical memories and redox stability.

show abstract

Optoelectrochemical properties of copolymer of terthiophene with 3,4-ethlenedioxypyrrole

Cited by 22 publications

References 35 publications

Electrochemical synthesis, characterization and electrochromic properties of indan and 1,3-benzodioxole-based poly(2,5-dithienylpyrrole) derivatives

Electrochemical synthesis, characterization and electrochromic properties of indan and 1,3-benzodioxole-based poly(2,5-dithienylpyrrole) derivatives

A Novel Electrochromic Copolymer of bis(4-(1H-pyrrol-1-yl)phenyl)methane and 3,4-ethylenedioxythiophene Prepared via Electrocopolymerization

Electrosynthesis and characterization of a novel electrochromic copolymer of N-methylpyrrole with cyclopenta[2,1-b:3,4-b′]dithiophene

Contact Info

Product

Resources

About