Harnessing hierarchical architectures to trap light for efficient photoelectrochemical cells

Tang, Songtao; Qiu, Weitao; Xiao, Shuang; Tong, Yexiang; Yang, Shihe

doi:10.1039/c9ee02986a

Cited by 51 publications

(26 citation statements)

References 136 publications

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“…Secondly, nanostructured photoelectrodes should be considered, as the nanostructure morphology can reduce light reflection and increase the light absorbance. [123] Thirdly, surface passivation or modifications can further improve the stability of the semiconductor under photoelectrochemical conditions. Fourthly, different solvents in terms of stability and solubility should be considered for different reactions of interests.…”

Section: Discussionmentioning

confidence: 99%

Photo/Bio‐Electrochemical Systems for Environmental Remediation and Energy Harvesting

Yang

et al. 2020

ChemSusChem

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Section: Discussionmentioning

confidence: 99%

Photo/Bio‐Electrochemical Systems for Environmental Remediation and Energy Harvesting

Yang

et al. 2020

ChemSusChem

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“…[38,47] Not surprisingly, many examples, such as 1D nanowire, [15,58,59] nanorod [60][61][62] and nanotube arrays (NTAs), [63][64][65] 2D nanoflakes [66][67][68] and nanosheet arrays, [69][70][71] and 3D inverse opals (IOs), [72][73][74] solid and hollow nanospheres (NSs), [75,76] as well as branched nanoarray structures, [77][78][79][80] have demonstrated the effectiveness of nanoarray structures in solar energy conversion and storage for fuels and chemicals. For one special type of materials/structures of nanoarrays or some specific process involved in artificial photosynthesis, please refer to the recent review papers such as heterogeneous nanostructure array for electrochemical energy conversion, [47] light management with patterned nanostructure arrays for photocatalysis, [49] hierarchical architectures to trap light for efficient PEC cells, [81] nanoarrays with rapid charge transport for PEC applications, [82] branched titania nanostructures for efficient energy conversion, [83] FeO-based nanostructures and nanohybrids for PEC water splitting, [84] and metal oxide nanoarray-based photo anodes for PEC water splitting. [38] Although there have been a few review articles discussing the nanoarrays applied for artificial photosynthesis, most of them are not comprehensive enough to summarize the material types or functions.…”

Section: Advantages Of Nanoarray Structures In Artificial Photosynthesismentioning

confidence: 99%

Nanoarray Structures for Artificial Photosynthesis

Tian

Zhao

et al. 2021

Small

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Conversion and storage of solar energy into fuels and chemicals by artificial photosynthesis has been considered as one of the promising methods to address the global energy crisis. However, it is still far from the practical applications on a large scale. Nanoarray structures that combine the advantages of nanosize and array alignment have demonstrated great potential to improve solar energy conversion efficiency, stability, and selectivity. This article provides a comprehensive review on the utilization of nanoarray structures in artificial photosynthesis of renewable fuels and high value‐added chemicals. First, basic principles of solar energy conversion and superiorities of using nanoarray structures in this field are described. Recent research progress on nanoarray structures in both abiotic and abiotic–biotic hybrid systems is then outlined, highlighting contributions to light absorption, charge transport and transfer, and catalytic reactions (including kinetics and selectivity). Finally, conclusions and outlooks on future research directions of nanoarray structures for artificial photosynthesis are presented.

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“…Based on the difference in the method in introducing heterojunction, these strategies can be categorized into two. [ 90 ] The first category produces heterojunctions through the controlled deposition of functional coatings onto photosensitive nanomaterials, which can be classified as surface modification. [ 91 ] The second category includes surface engineering that rationally introduces defect or extrinsic dopants, which can be summarized as surface regulation.…”

Section: Rationally Designed Heterostructure For Pec Water‐splitting mentioning

confidence: 99%

Rational Design of Metal Oxide‐Based Heterostructure for Efficient Photocatalytic and Photoelectrochemical Systems

Xia

Wang

Kim

et al. 2020

Adv Funct Materials

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Solar‐driven photo‐to‐chemical conversion is an interesting approach for energy harvesting and storage with high sustainability. To achieve high photo‐to‐chemical conversion efficiency, it is important to develop cost‐effective and stable catalysts with high activity. Metal oxides provide an interesting platform for the development of efficient catalysts owing to their abundance, high stability, and tunable band edges. Their performance highly depends on the rational design of heterostructures with engineered electronic structures, modified charge migration behavior, tailored interfacial properties, and amplified electromagnetic fields. All these enable the achievement of efficient light harvesting, promoted charge separation and transport, and accelerated surface reactions. Herein, a recent study on rationally designed metal oxide heterostructures for enhancing photo‐to‐chemical energy conversion via photocatalytic and photoelectrochemical systems is reviewed. The approaches to enhance their conversion efficiency are as follows: 1) surface modification via loading of plasmonic metals and other photosensitizers; 2) surface regulation, including morphology, defect, and dopants; 3) interfacial assembly with metal oxides, other metal compounds, and metal‐free materials. Moreover, the underlying reaction mechanisms of metal oxide‐based heterostructures and how they affect the energy conversion efficiency are discussed. Finally, the challenges and perspectives on the development of metal oxide‐based heterostructures and associated photo‐to‐chemical devices are presented.

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Harnessing hierarchical architectures to trap light for efficient photoelectrochemical cells

Abstract: Functional substructures towards artificial light trapping hierarchies inspired by the natural photosynthesis system.

Cited by 51 publications

References 136 publications

Photo/Bio‐Electrochemical Systems for Environmental Remediation and Energy Harvesting

Photo/Bio‐Electrochemical Systems for Environmental Remediation and Energy Harvesting

Nanoarray Structures for Artificial Photosynthesis

Rational Design of Metal Oxide‐Based Heterostructure for Efficient Photocatalytic and Photoelectrochemical Systems

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