Carbon quantum dot sensitized TiO2 nanotube arrays for photoelectrochemical hydrogen generation under visible light

Zhang, Xing; Wang, Fang; Huang, Hui; Li, Haitao; Han, Xijiang; Liu, Yang

doi:10.1039/c3nr34142a

Cited by 288 publications

(170 citation statements)

References 30 publications

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“…In the meantime, higher resistance caused by thicker barrier layers can be overcome by increasing the applied potentials for a higher electric field. The presence of fluoride ions in the electrolyte allows the creation of channels in which current flows to keep the oxidation process active [36]. The thickness of the barrier layers underneath the pores/tubes is continuously reduced by dissolution, and simultaneously regenerated by oxidation.…”

Section: Electrochemical Anodisation Methodsmentioning

confidence: 99%

One-Dimensional TiO2 Nanostructured Photoanodes: From Dye-Sensitised Solar Cells to Perovskite Solar Cells

et al. 2016

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This review presents one dimensional (1D) TiO 2 nanostructured photoanodes for next generation solar cells such as dye-sensitised solar cells (DSCs) and perovskite solar cells (PSCs). Due to the unique morphological properties, 1D TiO 2 nanostructures can act as express electron channels as well as light scattering layer, leading to improved charge transport properties, such as charge separation, electron injection, and electron lifetime, and light harvesting efficiency. As 1D TiO 2 nanostructures are applied to solar cells, 1D TiO 2 nanostructures should be further modified to overcome some drawbacks. In this review, we have described some solutions by introducing various 1D TiO 2 synthetic methods and device fabrication processes for solar cell applications, where we have described some important surface engineering and hierarchical device design strategies that facilitate charge transport and light utilisation in 1D TiO 2 nanostructured photoanode system.

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Section: Electrochemical Anodisation Methodsmentioning

confidence: 99%

One-Dimensional TiO2 Nanostructured Photoanodes: From Dye-Sensitised Solar Cells to Perovskite Solar Cells

et al. 2016

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“…Moreover, in the sample AG2, the photo-current values are about 3 times higher than that in CG2, and the saturation is also observed at a lower potential. The higher photo-current and early saturation indicates larger surface area and good fucntionalization of AG2 sample which early shown in FE-SEM micrographs [13]. Fig .…”

Section: Photo-electro-chemical Measurementsmentioning

confidence: 98%

Effect of Nanotube Diameter on Photo-Electro-Chemical Properties of Carbon Quantum Dot Functionalized TiO2 Nanotubes

Rani¹,

Rajalakshmi²

2015

JOCET

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“…Recently, carbon QD (CQD)-attached TiO 2 photoanodes were reported. 97 The CQDs electrodeposited on the TiO 2 can significantly broaden the photoresponse range of the TiO 2 to the visible and nearinfrared (NIR) regions. Under the simulated AM1.5 sunlight illumination, the photocurrent density of the TiO 2 /CQD photoanode was 4 times larger than the TiO 2 photoanode at 0 V (vs. Ag/AgCl).…”

Section: -7mentioning

confidence: 99%

Research Update: Strategies for efficient photoelectrochemical water splitting using metal oxide photoanodes

Cho¹,

Jang²,

Lee³

et al. 2014

APL Materials

124

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Photoelectrochemical (PEC) water splitting to hydrogen is an attractive method for capturing and storing the solar energy in the form of chemical energy. Metal oxides are promising photoanode materials due to their low-cost synthetic routes and higher stability than other semiconductors. In this paper, we provide an overview of recent efforts to improve PEC efficiencies via applying a variety of fabrication strategies to metal oxide photoanodes including (i) size and morphology-control, (ii) metal oxide heterostructuring, (iii) dopant incorporation, (iv) attachments of quantum dots as sensitizer, (v) attachments of plasmonic metal nanoparticles, and (vi) co-catalyst coupling. Each strategy highlights the underlying principles and mechanisms for the performance enhancements.

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Carbon quantum dot sensitized TiO2 nanotube arrays for photoelectrochemical hydrogen generation under visible light

Abstract: TiO2 nanotube arrays loaded with carbon quantum dots were used as a photoanode for efficient hydrogen generation under visible light.

Cited by 288 publications

References 30 publications

One-Dimensional TiO2 Nanostructured Photoanodes: From Dye-Sensitised Solar Cells to Perovskite Solar Cells

One-Dimensional TiO2 Nanostructured Photoanodes: From Dye-Sensitised Solar Cells to Perovskite Solar Cells

Effect of Nanotube Diameter on Photo-Electro-Chemical Properties of Carbon Quantum Dot Functionalized TiO2 Nanotubes

Research Update: Strategies for efficient photoelectrochemical water splitting using metal oxide photoanodes

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