Titanium doped cupric oxide for photovoltaic application

Masudy‐Panah, Saeid; Radhakrishnan, K.; Tan, Hui Ru; Ren, Yi; Wong, Ten It; Dalapati, Goutam Kumar

doi:10.1016/j.solmat.2015.04.024

Cited by 117 publications

(51 citation statements)

References 16 publications

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“…Therefore, a high‐yield low cost–based electrode fabrication process is required. Sputter deposition and solution‐based thin film deposition process have been used for the synthesis of CuO . Nonvacuum‐based methods such as sol–gel deposition are suitable for thin film deposition and can reduce fabrication cost by replacing vacuum‐based deposition methods with high‐throughput and large‐scale processes.…”

Section: Introductionmentioning

confidence: 99%

Nanoengineered Advanced Materials for Enabling Hydrogen Economy: Functionalized Graphene–Incorporated Cupric Oxide Catalyst for Efficient Solar Hydrogen Production

et al. 2020

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Cupric oxide (CuO) is a promising candidate as a photocathode for visible‐light‐driven photo‐electrochemical (PEC) water splitting. However, the stability of the CuO photocathode against photo‐corrosion is crucial for developing CuO‐based PEC cells. This study demonstrates a stable and efficient photocathode through the introduction of graphene into CuO film (CuO:G). The CuO:G composite electrodes are prepared using graphene‐incorporated CuO sol–gel solution via spin‐coating techniques. The graphene is modified with two different types of functional groups, such as amine (NH2) and carboxylic acid (COOH). The COOH‐functionalized graphene incorporation into CuO photocathode exhibits better stability and also improves the photocurrent generation compare to control CuO electrode. In addition, COOH‐functionalized graphene reduces the conversion of CuO phase into cuprous oxide (Cu2O) during photo‐electrochemical reaction due to effective charge transfer and leads to a more stable photocathode. The reduction of CuO to Cu2O phase is significantly lesser in CuO:G‐COOH as compared to CuO and CuO:G‐NH2 photocathodes. The photocatalytic degradation of methylene blue (MB) by CuO, CuO:G‐NH2 and CuO:G‐COOH is also investigated. By integrating CuO:G‐COOH photocathode with a sol–gel‐deposited TiO2 protecting layer and Au–Pd nanostructure, stable and efficient photocathode are developed for solar hydrogen generation.

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Section: Introductionmentioning

confidence: 99%

Nanoengineered Advanced Materials for Enabling Hydrogen Economy: Functionalized Graphene–Incorporated Cupric Oxide Catalyst for Efficient Solar Hydrogen Production

et al. 2020

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“…A series of specific issues on the macroscopic device characteristics level have been identified in the PV community. Currently under study are, for example, modeling and characterization of c-Si based PV devices and tandem including device architectures combining c-Si and Si nanowire solar cells [87], tandems with metal oxide cells on top of Si cells [88], and potentially other tandem architectures. A cross-cutting major issues is the characterization and modeling of defects, which is also a multiscale axis of interaction with research on other length scales [89,90].…”

Section: Macroscopic Device Characteristicsmentioning

confidence: 99%

Multiscale in modelling and validation for solar photovoltaics

et al. 2018

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Photovoltaics is amongst the most important technologies for renewable energy sources, and plays a key role in the development of a society with a smaller environmental footprint. Key parameters for solar cells are their energy conversion efficiency, their operating lifetime, and the cost of the energy obtained from a photovoltaic system compared to other sources. The optimization of these aspects involves the exploitation of new materials and development of novel solar cell concepts and designs. Both theoretical modeling and characterization of such devices require a comprehensive view including all scales from the atomic to the macroscopic and industrial scale. The different length scales of the electronic and optical degrees of freedoms specifically lead to an intrinsic need for multiscale simulation, which is accentuated in many advanced photovoltaics concepts including nanostructured regions. Therefore, multiscale modeling has found particular interest in the photovoltaics community, as a tool to advance the field beyond its current limits. In this article, we review the field of multiscale techniques applied to photovoltaics, and we discuss opportunities and remaining challenges.

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“…A various method such as electrochemical deposition, thermal evaporation, spin coating, and deep coating can be used to deposit the copper oxide . Among them, sputter deposition was used to prepare the Cu 2 O photocathodes due to the low level of impurity, good uniformity of deposited thin films, precise tuning of film's microstructure, the highest rate of scalability, and reproducibility . To investigate the impact of material properties of deposited thin Cu 2 O films on the photocatalytic activity of prepared Cu 2 O photocathodes, sputtering power was varied during the depositing the thin Cu 2 O film to control the material properties of Cu 2 O and prepare the thin Cu 2 O film with various degree of crystallinity.…”

Section: Introductionmentioning

confidence: 99%

Highly Stable Nanocrystal Engineered Palladium Decorated Cuprous Oxide Photocathode for Hydrogen Generation

Masudy‐Panah

Khiavi²,

Katal

et al. 2019

Adv Materials Inter

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Photocorrosion stability and the discrepancy between optical absorption and carrier diffusion length of cuprous oxide (Cu2O) thin films are the main limiting factors for hydrogen evolution and practical applications of Cu2O photocathodes. In this paper, by nanocrystal engineering the Cu2O optical absorbing thin film, the photocorrosion stability can be significantly improved. Furthermore, palladium (Pd) nanostructures are used to both act as a cocatalysis and address the discrepancy between optical absorption and carrier diffusion length of cuprous oxide and improve the photocatalytic activity of Cu2O photocathodes. By tuning the crystal quality of thin Cu2O film and Pd nanostructures through controlling the sputtering power of Cu2O and in situ plasma of substrate, the impact of the degree of crystallinity of thin Cu2O film and Pd nanostructures on photocorrosion stability and photocatalytic activity of prepared photocathodes are investigated in detail. Systematic characterization of prepared samples by using X‐ray diffraction, high‐resolution transmission electron microscopy, and scanning electron microscope analysis indicates that improving the crystallinity of deposited Cu2O thin film and Pd nanostructures can significantly improve the photocorrosion stability and performance of Cu2O based photocathodes.

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Titanium doped cupric oxide for photovoltaic application

Cited by 117 publications

References 16 publications

Nanoengineered Advanced Materials for Enabling Hydrogen Economy: Functionalized Graphene–Incorporated Cupric Oxide Catalyst for Efficient Solar Hydrogen Production

Nanoengineered Advanced Materials for Enabling Hydrogen Economy: Functionalized Graphene–Incorporated Cupric Oxide Catalyst for Efficient Solar Hydrogen Production

Multiscale in modelling and validation for solar photovoltaics

Highly Stable Nanocrystal Engineered Palladium Decorated Cuprous Oxide Photocathode for Hydrogen Generation

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