High performance photoanodic catalyst prepared from an active organic photovoltaic cell – high potential gain from visible light

Nagai, Keiji; Ahmad, Mohd Fairus; Nakano, Masahiro; Karakawa, Makoto; Taima, Tetsuya; Takahashi, Kohshin

doi:10.1039/c9cc04759j

Cited by 6 publications

(3 citation statements)

References 48 publications

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“…It is noteworthy that phthalocyanine has another role as a catalyst. One of the evidential phenomena is P3HT/PCBM photoanode [201,202], where coating with co-catalyst phthalocyanine enhanced photoanodic current. A recent observation by Kelvin force probe microscopy reveals a dipole formation between the co-catalyst and bulk heterojunction (BHJ), suggesting efficient charge separation for multi-electron transfer [202].…”

Section: Organic Photocatalyst (Organophotocatalyst)mentioning

confidence: 99%

“…One of the evidential phenomena is P3HT/PCBM photoanode [201,202], where coating with co-catalyst phthalocyanine enhanced photoanodic current. A recent observation by Kelvin force probe microscopy reveals a dipole formation between the co-catalyst and bulk heterojunction (BHJ), suggesting efficient charge separation for multi-electron transfer [202]. The main concern is the arrangement of the two different things since excitons can only diffuse in the range of few tens of nm for the duration of their lifetime, i.e., beforehand spontaneous recombination happened.…”

Section: Organic Photocatalyst (Organophotocatalyst)mentioning

confidence: 99%

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Recent Developments in the Use of Heterogeneous Semiconductor Photocatalyst Based Materials for a Visible-Light-Induced Water-Splitting System—A Brief Review

et al. 2021

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Visible-light-driven photoelectrochemical (PEC) and photocatalytic water splitting systems featuring heterogeneous semiconductor photocatalysts (oxynitrides, oxysulfides, organophotocatalysts) signify an environmentally friendly and promising approach for the manufacturing of renewable hydrogen fuel. Semiconducting electrode materials as the main constituents in the PEC water splitting system have substantial effects on the device’s solar-to-hydrogen (STH) conversion efficiency. Given the complication of the photocatalysis and photoelectrolysis methods, it is indispensable to include the different electrocatalytic materials for advancing visible-light-driven water splitting, considered a difficult challenge. Heterogeneous semiconductor-based materials with narrower bandgaps (2.5 to 1.9 eV), equivalent to the theoretical STH efficiencies ranging from 9.3% to 20.9%, are recognized as new types of photoabsorbents to engage as photoelectrodes for PEC water oxidation and have fascinated much consideration. Herein, we spotlight mainly on heterogenous semiconductor-based photoanode materials for PEC water splitting. Different heterogeneous photocatalysts based materials are emphasized in different groups, such as oxynitrides, oxysulfides, and organic solids. Lastly, the design approach and future developments regarding heterogeneous photocatalysts oxide electrodes for PEC applications and photocatalytic applications are also discussed.

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Section: Organic Photocatalyst (Organophotocatalyst)mentioning

confidence: 99%

Section: Organic Photocatalyst (Organophotocatalyst)mentioning

confidence: 99%

Recent Developments in the Use of Heterogeneous Semiconductor Photocatalyst Based Materials for a Visible-Light-Induced Water-Splitting System—A Brief Review

et al. 2021

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“…Organic semiconductors are a class of materials that have not been used much in photocatalysis. [ 7 ] However, they have many advantages that may render them attractive photocatalyst candidates, like the ease of synthesis and possibility to control their highest occupied molecular orbital (HOMO)−lowest unoccupied molecular orbital (LUMO) energy levels. Furthermore, photocatalytic electrodes from such materials can be fabricated at reduced cost, because of the applicability of vapor deposition at a relatively low temperature and wet coating.…”

Section: Introductionmentioning

confidence: 99%

Flexible Photocatalytic Electrode Using Graphene, Non‐noble Metal, and Organic Semiconductors for Hydrogen Evolution Reaction

et al. 2021

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Two kinds of visible light‐responsible organic semiconductors (epindolidione [EPI] and fluorinated EPI [2F‐EPI]) are synthesized. The solar hydrogen evolution photocatalytic electrode properties of the organic semiconductors are investigated and the heterostructure effect caused by manipulating the order of the deposition of 2F‐EPI and EPI is found, which increased the photoresponse current by reducing the carrier recombination of photoexcited electrons and holes. In addition, it is found that the deposition of Ni metal on the organic semiconductors further enhanced the photoresponse current and increased the durability of the organic semiconductor photocatalyst. Finally, a flexible photocatalytic electrode using graphene, organic semiconductors, and non‐noble metal cocatalyst for solar hydrogen generation is prepared. A transparent flexible electric conductive film is prepared by transfer of a graphene sheet on the polymer film. The graphene electrode is coated by two kinds of organic semiconductors layer by layer to reduce recombination of photoexcited electrons and holes. Ni metal particles are deposited on the surface of the organic semiconductor layer as a cocatalyst to improve the photocatalytic property and durability of organic semiconductors. A clear photoresponse current (about 4 μA cm−2) of the flexible photocatalytic electrode under the simulated solar light (AM 1.5 G, 100 mW cm−2) is observed.

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Ultra-fine metal particles dispersed on single-walled carbon nanotubes for energy devices

et al. 2022

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High performance photoanodic catalyst prepared from an active organic photovoltaic cell – high potential gain from visible light

Abstract: Photoelectrochemical oxidation of thiols was enhanced with a threshold potential of −0.35 V vs. Ag/AgCl by a ZnPc/PCBM:P3HT/ZnO electode, which was prepared by removing the PEDOT:PSS/Au electrode of an inverted OPV device and coating it with ZnPc.

Cited by 6 publications

References 48 publications

Recent Developments in the Use of Heterogeneous Semiconductor Photocatalyst Based Materials for a Visible-Light-Induced Water-Splitting System—A Brief Review

Recent Developments in the Use of Heterogeneous Semiconductor Photocatalyst Based Materials for a Visible-Light-Induced Water-Splitting System—A Brief Review

Flexible Photocatalytic Electrode Using Graphene, Non‐noble Metal, and Organic Semiconductors for Hydrogen Evolution Reaction

Ultra-fine metal particles dispersed on single-walled carbon nanotubes for energy devices

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