Maneuvering cuprous oxide-based photocathodes for solar-to-fuel conversion

Shen, Li; Mo, Qiao‐Ling; Xiao, Yang; Xiao, Fang‐Xing

doi:10.1016/j.ccr.2022.214948

Cited by 20 publications

(7 citation statements)

References 166 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The utilization of solar panels for generating pumping water within rural and agricultural settings is known to significantly increase agricultural productivity by allowing improved access to irrigation. Despite the considerable progress achieved in conventional photovoltaic technology, it remains to encounter several challenges and limitations [16,17]. The widespread use of perovskite solar cells has received significant interest as a promising alternative to conventional silicon-based photovoltaic systems.…”

Section: Solar Energy Technologiesmentioning

confidence: 99%

A Review on Next-Generation Solar Solutions: Pioneering Materials and Designs for Sustainable Energy Harvesting

Praveena,

Jain,

Arun

et al. 2024

E3S Web Conf.

View full text Add to dashboard Cite

As an essential initial step towards clean and sustainable energy, this research focuses on innovative materials and structural designs for maximizing solar energy conversion and harvesting. Modern solar thermal and photovoltaic system technologies and supplies are examined to show how alternative electricity has become less expensive and more sustainable. The primary focus is on complex ideas like multiple junctions and tandem solar cells, which increase the efficiency of single-junction systems. The review paper investigates innovative solar power storage solutions, involving battery technology and energy storage materials, to meet the increasing need for secure and easily available sources of clean energy. The research paper explores the technology and uses of flat plate collectors, tube collectors, and solar power plants and how those are used in residential and commercial solar thermal systems. Solar energy conversion efficiency and sustainability will improve with innovations in materials and architecture. Building-integrated photovoltaics (BIPV) is one of the easiest solar system architectures that can be integrated into any residential or commercial building. Quantum dot solar cells, photovoltaic (PV) solar energy frameworks, such as CIGS thin-film solar cells, and organic photovoltaics (OPVs). Organic photovoltaics are portable and lightweight but have a low energy conversion rate, whereas quantum dot solar cells have a high energy conversion rate but face fabrication challenges.

show abstract

Section: Solar Energy Technologiesmentioning

confidence: 99%

A Review on Next-Generation Solar Solutions: Pioneering Materials and Designs for Sustainable Energy Harvesting

Praveena,

Jain,

Arun

et al. 2024

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…Therefore, it is necessary to seek and utilize renewable clean energy to mitigate the problems caused by burning fossil fuels. , Solar energy is abundant and renewable, while hydrogen is considered as a future green energy source because of its cleanliness, availability, high heat value, and recyclability. Photoelectrochemical (PEC) water splitting, which is a sustainable approach to harness solar energy and generate hydrogen simultaneously, has been extensively investigated. − …”

Section: Introductionmentioning

confidence: 99%

WO₃ Coating Enhances the Performance of Cu₂O Photocathodes in Solar Water Splitting Cells

Wen,

Fu,

Zhan

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Cuprous oxide (Cu 2 O) is a promising photocathode material for unbiased solar water splitting cells. To improve the onset potential of Cu 2 O photocathodes, numerous efforts have been devoted to exploring a suitable n-type buffer layer material. However, previous studies mostly focused on optimizing the band alignment between the absorber and buffer layer, ignoring the role of surface states as reaction intermediates. Moreover, the high cost of Ga element and complicated multilayer process in current Ga 2 O 3 -based devices impede their large-scale application. In this work, the photoelectrochemical (PEC) performance of Cu 2 O photocathodes was investigated by coating an amorphous and crystalline WO 3 buffer layer with an annealing temperature of 100 and 200 °C, respectively. It is found that the onset potential of the Cu 2 O photocathode anodically shifts from 0.7 to 0.95V RHE with an amorphous WO 3 coating, while a poorer PEC performance is observed on the electrodes with crystalline WO 3 coating. Further analysis indicates that the porous structure and photocapacitive surface states on the amorphous WO 3 layer provide a special electron-transfer pathway into the electrolyte, which is eliminated in the crystalline WO 3 layer. Our study offers a strategy for enhancing the photovoltage of photocathodes instead of optimizing band alignment.

show abstract

“…However, pure Cu 2 O often faces the problem of severe carrier recombination. Therefore, the photoelectric conversion efficiency currently obtained is much lower than its theoretical solar-to-hydrogen conversion efficiency (18%). , To improve carrier separation and transport, numerous studies have focused on optimizing the electrode interfacial structure. On the one hand, gold or p-type nickel oxide, which is more compatible with the valence band energy level of Cu 2 O, is used as the backing layer to promote the hole transport to the counter electrode .…”

Section: Introductionmentioning

confidence: 99%

Cu₂O Photocathodes with Bidirectional CuSCN Layers to Improve Charge Separation for Enhanced Photoelectrochemical Water Splitting

Liang,

Li,

et al. 2024

Crystal Growth & Design

View full text Add to dashboard Cite

Cu2O has great potential as a photocathode for photoelectrochemical water splitting, and efficient charge separation through interface modulation is the key for potential application. In this work, we develop a facial strategy to maximally reduce the recombination of charge carriers via CuSCN in two directions, that is, E-CuSCN on an FTO substrate from ethylenediaminetetraacetic acid (EDTA) electrolyte as the hole-transport layer and D-CuSCN on the Cu2O layer from diethanolamine (DEA) electrolyte as the hole-storage layer. As a result, the E-CuSCN/Cu2O/D-CuSCN with efficient charge separation shows improved activity with a photocurrent density up to 5 mA·cm–2, which is 7 times higher than that of the pristine Cu2O. This work provides a new method for separating photocharges based on the design of interfacial crystal structure for high-efficiency photocathodes.

show abstract

Maneuvering cuprous oxide-based photocathodes for solar-to-fuel conversion

Cited by 20 publications

References 166 publications

A Review on Next-Generation Solar Solutions: Pioneering Materials and Designs for Sustainable Energy Harvesting

A Review on Next-Generation Solar Solutions: Pioneering Materials and Designs for Sustainable Energy Harvesting

WO₃ Coating Enhances the Performance of Cu₂O Photocathodes in Solar Water Splitting Cells

Cu₂O Photocathodes with Bidirectional CuSCN Layers to Improve Charge Separation for Enhanced Photoelectrochemical Water Splitting

Contact Info

Product

Resources

About

Maneuvering cuprous oxide-based photocathodes for solar-to-fuel conversion

Cited by 20 publications

References 166 publications

A Review on Next-Generation Solar Solutions: Pioneering Materials and Designs for Sustainable Energy Harvesting

A Review on Next-Generation Solar Solutions: Pioneering Materials and Designs for Sustainable Energy Harvesting

WO3 Coating Enhances the Performance of Cu2O Photocathodes in Solar Water Splitting Cells

Cu2O Photocathodes with Bidirectional CuSCN Layers to Improve Charge Separation for Enhanced Photoelectrochemical Water Splitting

Contact Info

Product

Resources

About

WO₃ Coating Enhances the Performance of Cu₂O Photocathodes in Solar Water Splitting Cells

Cu₂O Photocathodes with Bidirectional CuSCN Layers to Improve Charge Separation for Enhanced Photoelectrochemical Water Splitting