Confirmation of the Degradation of Single Junction Amorphous Silicon Modules (a-Si:H)

Osayemwenre, Gilbert; Meyer, Edson L.

doi:10.1155/2019/3452180

Cited by 4 publications

(5 citation statements)

References 39 publications

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“…In addition, adhesion degradation between various layers affects interface binding energy and aids the delamination of the layers of solar cells. This can lead to low output and ultimately result in premature failure as reported in previous study by Osayemwenre's @ et al, 2019. In that study in 7 years since the beginning of the monitoring process, two modules were observed to have failed [20][21][22]. Additional measurements were taken for the defective and non-defective samples at the intrinsic region, starting from the p/i interface to i/n interface.…”

Section: Adhesionmentioning

confidence: 86%

“…All the images of AFM tips used were with a high-resolution scanning electron microscope (SEM) before and after the measurement, to check for any tip modification that could alter the pull-off force of the cantilever tip. This technique is automatically able to calculate the pull-off force from the force-distance plot using the calibration procedure before the measurement [19,20]. To determine the appropriate position of the region of interest, an extremely low value was used for the elastic constant and equilibrium spacing.…”

Section: Identification Of Interfacial Locations Using Force Quantitamentioning

confidence: 99%

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Mechanical Degradation Analysis of an Amorphous Silicon Solar Module

Osayemwenre

Meyer

2020

Energies

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This work examines the degradation of photovoltaic modules. It assesses the structural defects of amorphous silicon solar cells, which result from mechanical stress at nanoscale level. Firstly, it analyses the interface morphology, deformation, and internal delamination of a single junction amorphous silicon solar module. Secondly, it explores the interface deformation of the layers of the defective region of the module with some statistical tools including root mean root (RSM) and arithmetic mean (Rq). It used the aforementioned tools to demonstrate the effect of microstructural defects on the mechanical behaviour of the entire layers of the module. The study established that the defect observed in the module, emanated from long-term degradation of the a-Si solar cells after years of exposure to various light and temperature conditions. It tested the mechanism of mechanical degradation and its effect on the reliability and stability of the defective and non-defective regions of the module with adhesion force characterisation.

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Section: Adhesionmentioning

confidence: 86%

Section: Identification Of Interfacial Locations Using Force Quantitamentioning

confidence: 99%

Mechanical Degradation Analysis of an Amorphous Silicon Solar Module

Osayemwenre

Meyer

2020

Energies

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“…The degradation of a-Si:H was studied by Osayemwenre and Meye, and they observed that efficiency decreased considerably during the monitored time period. Efficiency was reduced by 0.2% with each degree of increase in temperature [31].…”

Section: Amorphous Silicon Thin Filmsmentioning

confidence: 97%

Techno-Economic and Environmental Perspectives of Solar Cell Technologies: A Comprehensive Review

Nazir

Ali

Aftab³

et al. 2023

Energies

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This paper provides a review of the implementation of different materials and how they have impacted the efficiency of solar cells. This work elaborates on all solar generation methods that have been developed in the past and covers disparate technologies that are being implemented in different generations. A review of the characterization and factors involved in these processes are also discussed briefly. Furthermore, the economic, environmental, and technical perspectives related to solar cells have also been expounded. This paper also provides some insights into potential research directions that can be pursued in the field of solar energy. Energy demands are increasing all over the world, and substantial amounts of fossil fuels are currently exhausted all over the world in order to meet those needs, which in turn contaminates our environment; moreover, non-renewable sources of energy are diminishing at higher rates as well. Solar energy is of prime importance in all renewable energy sources as the Sun shines at the Earth for 8 to 10 h on average. Thus, heat can be harnessed to generate electricity, but solar cells are not substantially efficient because the materials used in them are quite costly and waste a considerable amount of energy, mostly as heat, which subsequently reduces the efficiency of the cell and increases the overall price as well. These challenges can be dealt with by designing more efficient, economical systems of storage and manufacturing PV cells with high efficacy. Scientists and engineers are more inclined toward advanced technologies and material manipulation to enhance the efficiency of solar energy and reduce its cost. In this regard, substantial research is being carried out, especially on the structure of materials and advanced materials like nanomaterials and quantum dots. Due to their distinct electromechanical and material properties, carbon-based nanomaterials like carbon nanotubes, graphene, fullerene, and nanohybrids are being employed as the electrodes, transport layers, active layers, or intermediate (interfacial) layers of solar cells in this regard.

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“…Studies have revealed that these chemicals include hydrochloric acid, nitric acid, hydrogen fluoride, 1,1,1-trichloroethane, acetone and sulphuric acid. Thin-film PV modules contain more toxic materials than conventional silicon PV modules [10], [12]. As PV modules begin to degrade and with continued exposure to harsh environmental conditions, moisture and water ingress occurs.…”

Section: A Background Of Studymentioning

confidence: 99%

“…As PV modules begin to degrade and with continued exposure to harsh environmental conditions, moisture and water ingress occurs. When delamination of the PV module's protective layers occurs, it contaminates any rainwater harvested from it [12]. If such water is consumed or used for domestic purposes it can affect human health negatively.…”

Section: A Background Of Studymentioning

confidence: 99%

A Review of Health Hazards Associated with Rainwater Harvested from Green, Conventional and Photovoltaic Rooftops

Osayemwenre¹,

Osibote²

2021

IJESD

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The world is experiencing a decrease in the volume of global freshwater. Most countries are faced with both freshwater and energy crises. For these reasons, countries are encouraging the use of renewable energy systems such as photovoltaic (PV) modules/panels. Regarding water, there is a need to enhance domestic rainwater harvesting process in informal (low-income) settlements and rural areas. However, because of the contamination, such harvested rainwater may pose a health hazard to its consumers in instances involving photovoltaic roofs. When photovoltaic modules degrade, cracks and delamination may occur in some of the modules. PV modules have the potential, therefore, of producing and leaching toxicants/metals into the rainwater harvested from such PV panels. At a certain degree of contamination water may become non-potable since it can cause a problem upon consumption. This challenge requires a detailed review investigation to reveal the actual effect of the continuous use of the rainwater as mentioned earlier and its possible solution. To achieve this, a review of what has been done in this area is presented and analysed. This study combines the effect of contamination of rainwater harvested from multiple roof types, such as conventional roof, green roof, integrated roof and PV roof of newly installed panels. This study is vital in the sense that while the health impact of a newly installed PV system can easily be controlled by merely avoiding the use of rainwater harvested during the infant stage of its installation, the same cannot be said of the later stage, as perpetual avoidance may be impossible.

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Confirmation of the Degradation of Single Junction Amorphous Silicon Modules (a-Si:H)

Cited by 4 publications

References 39 publications

Mechanical Degradation Analysis of an Amorphous Silicon Solar Module

Mechanical Degradation Analysis of an Amorphous Silicon Solar Module

Techno-Economic and Environmental Perspectives of Solar Cell Technologies: A Comprehensive Review

A Review of Health Hazards Associated with Rainwater Harvested from Green, Conventional and Photovoltaic Rooftops

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