Facile Fabrication and Photocurrent Generation Properties of Electrochemically Polymerized Fullerene–Poly(ethylene dioxythiophene) Composite Films

Akiyama, Tsuyoshi; Yoneda, Hiroyuki; Fukuyama, T.; Sugawa, Kosuke; Yamada, S.; Takechi, Kensuke; Shiga, Tohru; Tagaya, Motohiro; Nakayama, Hideki; Kohama, Keiichi

doi:10.1143/jjap.48.04c172

Cited by 15 publications

(11 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[27][28][29][30][31] For instance, Benincori reported the first "charm bracelet"… [32] Akiyama et al have reported the electrochemical polymerization of thiophene-derivatized fullerene and EDOT to be used for higher incorporation of the fullerene moiety into the film. [33] Later on, Nasybulin et al developed an electrochemical approach to fabricate a solar cell based on a three-layer codeposition of PEDOT/poly(2,2´-bithiophene)/fullerene. [34] With all this in mind, in this work we prepared PEDOT-based thin films decorated with C60 fullerene.…”

Section: Introductionmentioning

confidence: 99%

Effect of the fullerene in the properties of thin PEDOT/C60 films obtained by co-electrodeposition

Alegret

Dominguez‐Alfaro

Salsamendi

et al. 2017

Inorganica Chimica Acta

View full text Add to dashboard Cite

Organic electronics requires the development of reproducible and highly conductive thin films. The arrangement of poly(3,4-ethylenedioxythiophene) (PEDOT) with fullerene C60 leads to products with the combined properties of both species that are excellent candidates for these applications. However, very little has been studied about the effect of doping PEDOT with C60, and thus there is a lack of information regarding the morphology, electrochemical and electrochromic properties of the resulting films. Herein, simultaneous electrodeposition of poly(3,4-ethylenedioxythiophene) (PEDOT) doped with fullerene C60 was carried out via cyclic voltammetry in the range from 0.0V to +1.5V (vs Ag/AgCl) in a three-compartment cell. ITO coated on PET was used as both working and counter electrodes. The fullerene presence within the films was confirmed with MALDI and TGA (36% of fullerene content). The cyclic voltamograms showed that the C60-doped film has a higher oxidation potential, what was attributed to the electron affinity of the fullerene cage. Furthermore, the spectroelectrochemical and electrochromic analyses showed that the PEDOT/C60 films present a dark violet coloration in the reduced state, which differs from the usual dark blue of the PEDOT polymer. Finally, the morphology was analyzed using AFM and SEM, and pillar structure of broccoli-like particles was observed for both films. However, the fullerene doping generated smaller polymer-based particles, thus forming a denser structure with higher surface area, suggesting the use of the cages as nucleation points for the polymerization.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of the fullerene in the properties of thin PEDOT/C60 films obtained by co-electrodeposition

Alegret

Dominguez‐Alfaro

Salsamendi

et al. 2017

Inorganica Chimica Acta

View full text Add to dashboard Cite

show abstract

“…Fortunately, the immobilization of carbon nanomaterials within CPs solves this problem, improves the interconnections and homogeneously distributes the nanomaterial in the donor–acceptor junctions, providing a material with high efficiency. Multiple studies have been focused in obtaining a good distribution of the fullerene within the PEDOT matrix and avoid nanoparticle aggregation [ 35 , 36 , 37 , 38 , 39 , 40 ]. We have previously manufactured high quality PEDOT/C 60 films by co-electrodeposition with excellent C 60 homogeneity and high reproducibility with enhanced donor–acceptor interface, while retaining their bipolar conducting capabilities, i.e., both hole and electron transport [ 24 , 41 ].…”

Section: Introductionmentioning

confidence: 99%

2D and 3D Immobilization of Carbon Nanomaterials into PEDOT via Electropolymerization of a Functional Bis-EDOT Monomer

et al. 2021

View full text Add to dashboard Cite

Carbon nanomaterials (CNMs) and conjugated polymers (CPs) are actively investigated in applications such as optics, catalysis, solar cells, and tissue engineering. Generally, CNMs are implemented in devices where the relationship between the active elements and the micro and nanostructure has a crucial role. However, they present some limitations related to solubility, processibility and release or degradability that affect their manufacturing. CPs, such as poly(3,4-ethylenedioxythiophene) (PEDOT) or derivatives can hide this limitation by electrodeposition onto an electrode. In this work we have explored two different CNMs immobilization methods in 2D and 3D structures. First, CNM/CP hybrid 2D films with enhanced electrochemical properties have been developed using bis-malonyl PEDOT and fullerene C60. The resulting 2D films nanoparticulate present novel electrochromic properties. Secondly, 3D porous self-standing scaffolds were prepared, containing carbon nanotubes and PEDOT by using the same bis-EDOT co-monomer, which show porosity and topography dependence on the composition. This article shows the validity of electropolymerization to obtain 2D and 3D materials including different carbon nanomaterials and conductive polymers.

show abstract

“…During the past decade, numerous experimental and theoretical results have revealed large enhancement in light absorption efficiency, − fluorescence, − surface-enhanced Raman scattering ,− (SERS), and photocurrents ,,,− due to the proximal effects of NPs on conjugated polymers and dye systems. The observed enhancements are generally attributed to resonant coupling between radiation and particle plasmons in NPs and the possibility of tuning this resonance to coincide with the electronic transition levels of nearby molecules.…”

Section: Introductionmentioning

confidence: 99%

“…Our group recently developed photoelectrodes using gold NPs with monolayers of organic dye molecules and demonstrated that photocurrents could be about 10–50 times enhanced as compared with the monolayer prepared on planar gold surfaces . We have also reported several different techniques to assemble plasmonic nanostructures on substrates, some of which include electrochemical deposition, electrostatic layer-by-layer adsorption of NPs, ,, vacuum deposition, and deposition of NP films formed on a liquid–liquid interface . More recently, we extended these studies to polythiophene, one of the most widely used conjugated polymer semiconductors in bulk heterojunction solar cells. ,, We observed appreciable enhancement of photocurrents in photoelectrodes consisting of gold NPs that were deposited on ITO substrates by electrostatic adsorption or electrodeposition and the polythiophene layer prepared by electropolymerization .…”

Section: Introductionmentioning

confidence: 99%

Enhanced Photoelectrochemical Response of Polythiophene Photoelectrodes with Controlled Arrays of Silver Nanocubes

et al. 2015

Self Cite

View full text Add to dashboard Cite

In the present work silver nanoparticles (cubes and spheres) with sizes of 40 ± 5 nm have been synthesized by a similar experimental method in order to optimize both the photoluminescence and photoelectric conversion enhancement factor of poly(3-hexylthiophene) photoelectrodes with thickness comparable to those used in organic solar cells. The silver nanoparticles were assembled into monolayers with various coverage densities using the Langmuir−Blodgett technique. The dependence of surface plasmon evanescent field and energy transfer has been investigated with the largest enhancement in photoluminescence observed at approximately 14% coverage density of silver nanocubes. We attribute the enhancement to a strong local electric field as well as scattering properties associated with particles of this geometry that translate to significant photocurrent enhancements. The mean photoluminescence lifetimes of the photoelectrode decreased with decreasing silver nanocube spacing and represent an increase in the total decay rate by a factor of 1.24 at 14% coverage of the nanoarrays. The origin of this increase is due to enhancement in either the radiative and/or nonradiative decay rates. ■ INTRODUCTIONRecently, the interaction of noble metal nanoparticles (NPs) with organic materials such as conjugated polymers and dyes has attracted significant attention due to their diverse applications in material, chemical, and biological science. 1−6 The great usefulness of these NPs stems from the ability to fine-tune their physical and optical properties. 4,5,7 For example, metal NPs can adopt a wide range of sizes and shapes (cubes, prisms, rods, cages, etc.) which give rise to a wider range of spectral properties. When excited by light of appropriate wavelength, they exhibit localized surface plasmon resonance (LSPR) due to collective oscillation of their conduction electrons, which in turn induces strong electromagnetic fields on and around the NP surface. 3−7 This generally leads to an enhancement in the radiative and nonradiative electronic properties of the NPs.During the past decade, numerous experimental and theoretical results have revealed large enhancement in light absorption efficiency, 8−12 fluorescence, 12−17 surface-enhanced Raman scattering 3,18−20 (SERS), and photocurrents 1,3,6,21−34 due to the proximal effects of NPs on conjugated polymers and dye systems. The observed enhancements are generally attributed to resonant coupling between radiation and particle plasmons in NPs and the possibility of tuning this resonance to coincide with the electronic transition levels of nearby molecules. The degree of enhancement depends on the oscillating electric field intensity in the vicinity of the metal NPs, whereas the electric field intensity depends on the metal type, size, shape, proximity of neighboring particles, and dielectric environment. 4 Our group recently developed photoelectrodes using gold NPs with monolayers of organic dye molecules and demonstrated that photocurrents could be about 10−50 times enhanced as compa...

show abstract

Facile Fabrication and Photocurrent Generation Properties of Electrochemically Polymerized Fullerene–Poly(ethylene dioxythiophene) Composite Films

Cited by 15 publications

References 21 publications

Effect of the fullerene in the properties of thin PEDOT/C60 films obtained by co-electrodeposition

Effect of the fullerene in the properties of thin PEDOT/C60 films obtained by co-electrodeposition

2D and 3D Immobilization of Carbon Nanomaterials into PEDOT via Electropolymerization of a Functional Bis-EDOT Monomer

Enhanced Photoelectrochemical Response of Polythiophene Photoelectrodes with Controlled Arrays of Silver Nanocubes

Contact Info

Product

Resources

About