Bias-free photoelectrochemical water splitting with photosystem II on a dye-sensitized photoanode wired to hydrogenase

Sokol, Katarzyna P.; Robinson, William E.; Warnan, Julien; Kornienko, Nikolay; Nowaczyk, Marc M.; Ruff, Adrian; Zhang, Jenny; Reisner, Erwin

doi:10.1038/s41560-018-0232-y

Cited by 200 publications

(185 citation statements)

References 50 publications

(64 reference statements)

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“…In order to maximize solar utilization in PEC devices, it is advantageous to utilize both electrodes as light absorbers with a maximization of solar light absorption by a combination of electrodes. There have been examples of integration of dye sensitized tandem PEC cells with molecular dyes for broad light absorption 163–168. In general, molecule dyes suffer from degradation after multiple photoexcitations and, typically, have a narrow solar spectral range, hindering the durability and activity of dye‐sensitized PEC cells.…”

Section: Benchmarks Of Hybrid System Assemblies For Photoelectrochemimentioning

confidence: 99%

Hybrid Photoelectrochemical Water Splitting Systems: From Interface Design to System Assembly

Niu

Wang

et al. 2019

Advanced Energy Materials

166

120

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Photoelectrochemical (PEC) water splitting has attracted increasing attention due to its potential to mitigate energy and environmental issues. Hybrid PEC systems containing semiconductor photosensitizers and molecular catalysts are reported to be highly active and stable for water splitting with great potential for facilitating clean fuels production. In this review, following a showcasing of the fundamental details of hybrid PEC systems for water splitting, semiconductor/molecular catalyst interface designs are highlighted, with a focus on interfacial physicochemical interactions and binding, and interfacial energetics and dynamics for efficient charge transfer. Recent advances in hybrid system assemblies for PEC water splitting are also briefly introduced. Finally, future challenges and directions in the field of hybrid PEC water splitting for solar energy conversion are reviewed. The current review provides state‐of‐the‐art strategies for optimized interface design for creating highly active and stable PEC water splitting assemblies.

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Section: Benchmarks Of Hybrid System Assemblies For Photoelectrochemimentioning

confidence: 99%

Hybrid Photoelectrochemical Water Splitting Systems: From Interface Design to System Assembly

Niu

Wang

et al. 2019

Advanced Energy Materials

166

120

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“…Al ot of attention is being paid to artificial photosynthesis in natural and life sciences. [1][2][3][4] Design and preparation of synthetic modelc ompounds mimickingn atural light-harvesting systems is ap rimaryc hallenge. [5][6][7][8][9][10] Ideally,u pon photoexcitation, as ystem of interest should give rise to al ong-lived chargeseparated (CS) state with ah ighq uantum yield.…”

Section: Introductionmentioning

confidence: 99%

Peculiar Photoinduced Electron Transfer in Porphyrin–Fullerene Akamptisomers

Stasyuk

Solà

et al. 2019

Chemistry A European J

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Porphyrin–fullerene dyads are promising candidates for organic photovoltaic devices. The electron‐transfer (ET) properties of the molecular devices depend significantly on the mutual position of the donor and acceptor. Recently, a new type of molecular isomerism (akamptisomerism) has been discovered. In the present study, we explore how photoinduced ET can be modulated by passing from one akamptisomer to another. To this aim, four akamptisomers of the quinoxalinoporphyrin–[60]fullerene complex are selected for computational study. The most striking finding is that, depending on the isomer, the porphyrin unit in the dyad can act as either electron donor or electron acceptor. Thus, the stereoisomeric diversity allows one to change the direction of ET between the porphyrin and fullerene moieties. To understand the effect of akamptisomerism on the photoinduced ET processes, a detailed analysis of initial and final states involved in the ET is performed. The computed rate for charge separation is estimated to be in the region of 1–10 ns−1. The formation of a long‐living quinoxalinoporphyrin anion radical species is predicted.

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“…These and other factors limit the performance of a device employing solely natural or artificial materials as the photoactive component. [34,35] Direct electric current generation has also been studied in a wide variety of biohybrid devices, combining different photosynthetic microorganisms [19,20,36] and Semiartificial photosynthetic systems have opened up new avenues for harvesting solar energy using natural photosynthetic materials in combination with synthetic components. [32,33] The concept has already shown signs of success in fuel generation by photo-electrochemical water splitting.…”

mentioning

confidence: 99%

Optical Shading Induces an In‐Plane Potential Gradient in a Semiartificial Photosynthetic System Bringing Photoelectric Synergy

Ravi

Zhang

Wang

et al. 2019

Advanced Energy Materials

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and are believed to be key to sustainably overcoming the terawatt energy challenge the world currently faces. [1][2][3] The field of solar energy harvesting, previously dominated by inorganic materials, has in recent times witnessed the rapid ascent of organic materials in device designs. [4] In particular, much of the progress in this field has been driven by bioinspiration with nature's photosynthetic (PS) apparatus as a model material. [5][6][7] The aim of exploiting nature's designs for the harnessing of solar energy has attracted considerable efforts in the areas of artificial photosynthesis, [8,9] bio-photovoltaics and bio-electrochemical cells. [10][11][12][13][14] The "biomimetic solar cell," an application long sought after, aims to mimic the architecture of nature's reaction center (RC) and light-harvesting (LH) complexes in a fully artificial photosynthetic device for direct "solar electricity" generation. [15] Although the basic design principle of a dye-sensitized solar cell comes closer to this idea, [16] it is undeniably far from having any structural similarity with photosynthetic proteins, and developing supramolecular solar cells with artificial RCs [17] or other protein mimics has been extremely challenging. [18] Alongside the development of artificial photosynthetic systems, there have also been attempts to directly employ natural photosynthetic materials such as bacterial cells, [19][20][21] pigment proteins, [22][23][24][25][26][27][28][29] and membranes [30,31] as photoactive components for both direct electricity generation and fuel molecule synthesis.While, on the one hand, fully artificial photosynthetic systems lack the nanoscale architectural sophistication found in natural photosystems, on the other hand, natural photosystems are not always sufficiently robust or efficient outside their native environments. These and other factors limit the performance of a device employing solely natural or artificial materials as the photoactive component. [32] Bridging the two approaches, the idea of semiartificial photosynthetic systems is now gaining attention as it offers advantages over purely artificial or biological systems. [32,33] The concept has already shown signs of success in fuel generation by photo-electrochemical water splitting. [34,35] Direct electric current generation has also been studied in a wide variety of biohybrid devices, combining different photosynthetic microorganisms [19,20,36] and Semiartificial photosynthetic systems have opened up new avenues for harvesting solar energy using natural photosynthetic materials in combination with synthetic components. This work reports a new, semiartificial system for solar energy conversion that synergistically combines photoreactions in a purple bacterial photosynthetic membrane with those in three types of transition metal-semiconductor Schottky junctions. A transparent film of a common transition metal interfaced with an n-doped silicon semiconductor exhibits an in-plane potential gradient when a light-penetration variance is esta...

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Bias-free photoelectrochemical water splitting with photosystem II on a dye-sensitized photoanode wired to hydrogenase

Cited by 200 publications

References 50 publications

Hybrid Photoelectrochemical Water Splitting Systems: From Interface Design to System Assembly

Hybrid Photoelectrochemical Water Splitting Systems: From Interface Design to System Assembly

Peculiar Photoinduced Electron Transfer in Porphyrin–Fullerene Akamptisomers

Optical Shading Induces an In‐Plane Potential Gradient in a Semiartificial Photosynthetic System Bringing Photoelectric Synergy

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