Full Solution‐Processed Synthesis of All Metal Oxide‐Based Tree‐like Heterostructures on Fluorine‐Doped Tin Oxide for Water Splitting

Yin, Zongyou; Wang, Zheng; Du, Yaping; Qi, Xiaoying; Huang, Yizhong; Xue, Can; Zhang, Hua

doi:10.1002/adma.201201474

Cited by 135 publications

(93 citation statements)

References 50 publications

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“…Arrays Fabricating three-dimensional (3D) ordered arrays is a goal of researchers because these arrays can show enhanced performance over an individual unit [91]. Some pioneering methods have been demonstrated that can be used to construct arrays based on amorphous nanomaterials, such as pulsed laser deposition (PLD) [70], electrochemical oxidation [71,72], reactive ion etching (RIE) [73], solution-based self-assembly [74] and CVD [75].…”

Section: Nanosheetsmentioning

confidence: 99%

Tailoring the shape of amorphous nanomaterials: recent developments and applications

2015

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Nanoscale amorphous materials are very important member of the non-crystalline solids family and have emerged as a new category of advanced materials. However, morphological control of amorphous nanomaterials is very difficult because of the atomic isotropy of their internal structures. In this review, we introduce some emerging innovative methods to fabricate well-defined, regular-shaped amorphous nanomaterials. We then highlight some examples to evaluate the use of these amorphous materials in electrodes, and their optical response. There is still plenty of room to explore the amorphous world. As researchers continue to advance the scientific tools that underpin the concepts related to "amorphous", additional applications of these materials will emerge. Their controlled synthesis will undoubtedly attain new heights in the discipline of nanomaterials, and allow nanoscale amorphous materials to become more sophisticated, diverse, and mainstream.

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Section: Nanosheetsmentioning

confidence: 99%

Tailoring the shape of amorphous nanomaterials: recent developments and applications

2015

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“…In particular, 2D NSs have been regarded as promising nano-components that exhibit bifunctional properties of both large surface area for dye adsorption and relatively direct pathways for the transportation of electrons to the electrode [34][35][36] . TiO 2 is most commonly used as a photoanode in DSSCs, and to date, the best of state-of-the-art DSSC is based on the anatase TiO 2 anode materials.…”

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confidence: 99%

Maximizing omnidirectional light harvesting in metal oxide hyperbranched array architectures

et al. 2014

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The scrupulous design of nanoarchitectures and smart hybridization of specific active materials are closely related to the overall photovoltaic performance of an anode electrode. Here we present a solution-based strategy for the fabrication of well-aligned metal oxide-based nanowire-nanosheet-nanorod hyperbranched arrays on transparent conducting oxide substrates. For these hyperbranched arrays, we observe a twofold increment in dye adsorption and enhanced light trapping and scattering capability compared with the pristine titanium dioxide nanowires, and thus a power conversion efficiency of 9.09% is achieved. Our growth approach presents a strategy to broaden the photoresponse and maximize the light-harvesting efficiency of arrays architectures, and may lead to applications for energy conversion and storage, catalysis, water splitting and gas sensing.

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“…Recently, one type of technologies based on photoelectrochemical (PEC) reactions is expected as a potential route to solve the problems [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. These technologies share some features in common, including utilization of nanostructured or molecular semiconductors to harvest sunlight, and conversion of solar energy into fuels or electricity by electrochemical reactions, etc.…”

Section: Introductionmentioning

confidence: 99%

Sonication-polished anodic TiO2 nanotube array-based photoanode for efficient solar energy conversion

Zhong

Guo

et al. 2016

J Solid State Electrochem

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In this work, the capping layer atop anodic TiO 2 nanotube arrays (NTAs), which hinders filling of other guest materials and transport of charge carriers, is discerned to be TiO 2 nanotapes. Then, it is completely removed by a novel sonication-polishing (SP) treatment, after which Sb 2 S 3 is subsequently introduced to fill the nanotubes by chemical bath deposition. The morphological, structural, and optical properties of the SP-treated TiO 2 NTAs and TiO 2 NTAs/Sb 2 S 3 heterogeneous structures are characterized systematically. The results indicate that SP treatment opens the tops of nanotubes with diameters of ∼120 nm, which endure a phase conversion from amorphous to anatase after calcination at 450°C; besides, stibnite Sb 2 S 3 with a band gap of ∼1.75 eV inside the TiO 2 networks is formed upon heat treatment at 330°C in Ar, which enhances the absorption in visible light range. The photoelectrochemical (PEC) and photovoltaic properties for the SP-treated TiO 2 NTAs are investigated. Results shows that the photoresponse of TiO 2 NTAs is improved by the SP treatment, and the photocurrent for the TiO 2 NTAs/Sb 2 S 3 electrode is substantially enhanced as compared to the bare TiO 2 one. A high efficiency of 6.28 % is achieved in a TiO 2 NTAs/Sb 2 S 3 PEC cell. In addition, charge recombination in the photoanode of dye-sensitized solar cells (DSSCs) is observed to be greatly retarded by using the SP-treated TiO 2 NTAs as compared to TiO 2 nanoparticles (NPs). Thus, the SP anodic TiO 2 NTAs are promising in applications in various PEC areas such as photocatalysis and sensitized solar cells.

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Full Solution‐Processed Synthesis of All Metal Oxide‐Based Tree‐like Heterostructures on Fluorine‐Doped Tin Oxide for Water Splitting

Cited by 135 publications

References 50 publications

Tailoring the shape of amorphous nanomaterials: recent developments and applications

Tailoring the shape of amorphous nanomaterials: recent developments and applications

Maximizing omnidirectional light harvesting in metal oxide hyperbranched array architectures

Sonication-polished anodic TiO2 nanotube array-based photoanode for efficient solar energy conversion

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