Recent Advances in the Design of Plasmonic Au/TiO2 Nanostructures for Enhanced Photocatalytic Water Splitting

Abed, Jehad; Rajput, Nitul S.; Moutaouakil, Amine El; Jouiad, Mustapha

doi:10.3390/nano10112260

Cited by 43 publications

(19 citation statements)

References 93 publications

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“…To enter the market of PVs, the other aspects, such as the total cost (although the material is cheap enough) and the aging of perovskite materials relative to those made using silicon, need to be addressed. Advances in other materials for optoelectronic devices such as graphene, MoS 2 and compound semiconductors [197][198][199][200][201][202][203][204][205][206][207][208][209][210][211][212] are having a huge impact and benefitting the progress in the field of PVs either through the process techniques, or through the marketization strategies. In the end, the perovskite-silicon tandem solar cells have been introduced as the next generation of PVs and will replace the current technology of silicon PVs (in comparison of electric costs) [6].…”

Section: Discussionmentioning

confidence: 99%

Hybrid Organic–Inorganic Perovskite Halide Materials for Photovoltaics towards Their Commercialization

et al. 2022

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Hybrid organic–inorganic perovskite (HOIP) photovoltaics have emerged as a promising new technology for the next generation of photovoltaics since their first development 10 years ago, and show a high-power conversion efficiency (PCE) of about 29.3%. The power-conversion efficiency of these perovskite photovoltaics depends on the base materials used in their development, and methylammonium lead iodide is generally used as the main component. Perovskite materials have been further explored to increase their efficiency, as they are cheaper and easier to fabricate than silicon photovoltaics, which will lead to better commercialization. Even with these advantages, perovskite photovoltaics have a few drawbacks, such as their stability when in contact with heat and humidity, which pales in comparison to the 25-year stability of silicon, even with improvements are made when exploring new materials. To expand the benefits and address the drawbacks of perovskite photovoltaics, perovskite–silicon tandem photovoltaics have been suggested as a solution in the commercialization of perovskite photovoltaics. This tandem photovoltaic results in an increased PCE value by presenting a better total absorption wavelength for both perovskite and silicon photovoltaics. In this work, we summarized the advances in HOIP photovoltaics in the contact of new material developments, enhanced device fabrication, and innovative approaches to the commercialization of large-scale devices.

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Section: Discussionmentioning

confidence: 99%

Hybrid Organic–Inorganic Perovskite Halide Materials for Photovoltaics towards Their Commercialization

et al. 2022

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“…This oxide attracted much attention due to its low cost, high stability, and superior electronic and chemical properties [ 59 ] . However, its application is limited by the high charge recombination rate [ 60 ] , wide bandgap (3.2 eV), and low solar collection efficiency (4‐5% of the total solar spectrum) [ 61 ] . Au/TiO 2 nanomaterials have been applied in HER in several studies with different conformations as nanosheets [ 62 ] , janus [ 63 ] and half‐dome heterostructures [ 64 ] , films [ 65 ] , among others [ 66,67 ] .…”

Section: Water Splittingmentioning

confidence: 99%

Metal oxides as electrocatalysts for water splitting: On plasmon‐driven enhanced activity

Rodrigues

Miguel

Germano

et al. 2021

Electrochemical Science Adv

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Many technological approaches have been searched in order to overcome the main challenges concerning the world energy crisis and global environmental issues. Among them, plasmon‐driven photoelectrochemical reactions towards water electrolysis attract great attention due to their capacity to efficiently harvest solar energy. Synergism between tunable optical features and catalysts active sites of plasmonic nanomaterials gives rise to a singular perspective for photochemical processes. Through resonant photonic excitation, hot carriers’ motion facilitates the charge transfer process on the catalyst surface for chemical reactions. In this minireview, recent experimental research with emphasis on water splitting reactions have been summarized with the purpose of understanding the mechanistic hot electrons generation and transfer on the plasmonic noble metal nanoparticles (MNPs) and transition metal oxides (MOs) heterostructures. Examples of plasmonic nanomaterials are highlighted and compared for both water electrolysis semi reactions. Finally, this work concludes by describing the remaining challenges and gives some perspectives regarding the promising future of plasmon‐driven reactions investigations.

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“…To overcome these limitations, plasmonic photocatalysts have emerged as a promising technology for harvesting and converting solar energy [ 31 , 32 , 33 , 34 , 35 ]. This is achieved by the generation and transfer of energetic charge carriers or “hot electrons” via resonant interaction of incident light with the collective and coherent motion of electrons in metal nanostructures to initiate, enhance, and promote photocatalytic activity.…”

Section: Introductionmentioning

confidence: 99%

Hot Electrons in TiO2–Noble Metal Nano-Heterojunctions: Fundamental Science and Applications in Photocatalysis

Manuel

Shankar

2021

Nanomaterials

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Plasmonic photocatalysis enables innovation by harnessing photonic energy across a broad swathe of the solar spectrum to drive chemical reactions. This review provides a comprehensive summary of the latest developments and issues for advanced research in plasmonic hot electron driven photocatalytic technologies focusing on TiO2–noble metal nanoparticle heterojunctions. In-depth discussions on fundamental hot electron phenomena in plasmonic photocatalysis is the focal point of this review. We summarize hot electron dynamics, elaborate on techniques to probe and measure said phenomena, and provide perspective on potential applications—photocatalytic degradation of organic pollutants, CO2 photoreduction, and photoelectrochemical water splitting—that benefit from this technology. A contentious and hitherto unexplained phenomenon is the wavelength dependence of plasmonic photocatalysis. Many published reports on noble metal-metal oxide nanostructures show action spectra where quantum yields closely follow the absorption corresponding to higher energy interband transitions, while an equal number also show quantum efficiencies that follow the optical response corresponding to the localized surface plasmon resonance (LSPR). We have provided a working hypothesis for the first time to reconcile these contradictory results and explain why photocatalytic action in certain plasmonic systems is mediated by interband transitions and in others by hot electrons produced by the decay of particle plasmons.

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Recent Advances in the Design of Plasmonic Au/TiO2 Nanostructures for Enhanced Photocatalytic Water Splitting

Cited by 43 publications

References 93 publications

Hybrid Organic–Inorganic Perovskite Halide Materials for Photovoltaics towards Their Commercialization

Hybrid Organic–Inorganic Perovskite Halide Materials for Photovoltaics towards Their Commercialization

Metal oxides as electrocatalysts for water splitting: On plasmon‐driven enhanced activity

Hot Electrons in TiO2–Noble Metal Nano-Heterojunctions: Fundamental Science and Applications in Photocatalysis

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