Metal-assisted chemical etching (MacEtch) of silicon in hydrofluoric acid (HF) aqueous solutions is a widely used top-down approach for silicon micro/nanofabrication due to its cost-effectiveness ...
During the making of solar cell, edge isolation process can be applied on the solar cells that affects IV characteristics of solar cell, which is critical to the efficiency. In this research work, wet chemical etching method by combination of Hydrochloric acid, Nitric acid and Nitric acid (HNA solution).
In experimental results, it is observed that etching with the acid solution improves the IV characteristics of solar cells and hence it ameliorates the power curves. Efficiency before etching solar cells was 3.17% and 3.90%. After etching the solar cell efficiency increase up to 5.53% and 5.31% respectively.
This aspect is particularly relevant when considering the introduction of the process in the industrial production of silicon solar cells, as a less stable etching process would be more difficult to implement. Fig. 11. Effective reflectivity of MACE etched samples as function of reaction time with ρ = 0.916 and ρ = 0.944. Fig. 12.
Still, to be applied in the solar cell industrial production a light-trapping technique must be fully scalable and cost-effective. Metal-assisted chemical etching (MACE) is a very promising light-capture technique, that could become a standard method in the industrial production of crystalline silicon solar cells.
Orientation-selective etching can easily obtain microstructures with a high aspect ratio via micro-mask assistant. 21 However, RIE is hard to meet the needs of large-scale solar cell texturing due to the vacuum environment and cost constraints.
In order to obtain the microstructure with the ideal feature and size for silicon solar cell texturing, it is necessary to further study the anisotropic removal behavior of the Si surface etched by low-temperature atmospheric plasma and clarify the topography formation mechanism.
Metal-assisted chemical etching (MacEtch) of silicon in hydrofluoric acid (HF) aqueous solutions is a widely used top-down approach for silicon micro/nanofabrication due to its cost-effectiveness ...
The effect of (NH 4) 2 S and CS 2 chemical etches on surface chemistry and contacting in Sb 2 Se 3 solar cells was investigated via a combination of x-ray photoemission spectroscopy (XPS) and photovoltaic …
We present here a thorough study of a one-step metal-assisted chemical etching (MACE) method to reduce the reflectivity of monocrystalline silicon (mono c-Si) wafers, thus increasing their light...
Advances in Engineering Research, volume 112 198. The microstructure of the black silicon before and after the acid etching was characterized by scanning electron microscope (SEM). The surface ...
Among all, wet etching is a low cost, high throughput, and easy handling procedure, which brings a good balance between the efficiency and cost of the solar cells [2,11,24].
The booming production of silicon solar panels, a core technology in the energy transition, calls for proper end-of-life management. Here the authors propose a salt-etching approach that enables ...
Metal electrodes, anti-reflection coatings, emitter layers, and p-n junctions must be eliminated from the solar cells in order to recover the Si wafers. In this study, we have …
The effect of (NH 4) 2 S and CS 2 chemical etches on surface chemistry and contacting in Sb 2 Se 3 solar cells was investigated via a combination of x-ray photoemission spectroscopy (XPS) and photovoltaic device analysis. Thin film solar cells were produced in superstrate configuration with an absorber layer deposited by close space sublimation.
We present here a thorough study of a one-step metal-assisted chemical etching (MACE) method to reduce the reflectivity of monocrystalline silicon (mono c-Si) wafers, thus increasing their light...
Though the solar cell with additional NaOH treatment for 30 s presented a reflectance of 5.45 %, it presented the highest conversion efficiency of 18.03 %, which is 0.64 % higher than the ...
During the making of solar cell, edge isolation process can be applied on the solar cells that affects IV characteristics of solar cell, which is critical to the efficiency. In this research work, wet chemical etching method by combination of Hydrochloric acid, Nitric acid and Nitric acid (HNA solution). This combined solution is used for ...
The first etching process resulted in deep grooves, 36 μm on average, on the front of recycled wafers that rendered the process unsuitable for wafers to be used in solar cell production. Such grooves occurred due to different etching …
High-efficiency solar cells need to have high-spectral absorption capacity and utilization, for this purpose silicon quantum dots (SiQDs) are good candidate to meet the requirement [1,2,3,4,5].The application of SiQDs in PV modules is promising, the materials are typically incorporated into the surface of a solar cell without altering its structure, enabling their …
We present here a thorough study of a one-step metal-assisted chemical etching (MACE) method to reduce the reflectivity of monocrystalline silicon (mono c-Si) wafers, thus …
Request PDF | Wet etching processes for recycling crystalline silicon solar cells from end-of-life photovoltaic modules | The ideal approach for disposing of end-of-life photovoltaic (PV) modules ...
Here, we report on the results of the etching of III‒V alloys in mul-tijunction solar cell structures by aqueous solutions containing HIO3 and HCl. The effects of temperature, agitation, etchant …
Surface texturing for suppressing the reflection losses is the first and foremost step in the solar cell fabrication process. Over the years, multi-crystalline silicon (mc-Si) wafer …
Metal-Assisted Etching (MAE) has been shown to be a promising and low-cost alternative to the traditional acid-based isotropic texturing. This paper reports, for the first time, a new single-step Ni-assisted etching technique to obtain nano-scale porous structures, that is, black silicon on multi-crystalline wafers.
Here, we report on the results of the etching of III‒V alloys in mul-tijunction solar cell structures by aqueous solutions containing HIO3 and HCl. The effects of temperature, agitation, etchant composition, and illumination on the etching are studied, with the emphasis on the non-selectivity of the etching process.
Controlling features and size of the light-trapping structure are keys to improving the reflection performance of silicon (Si) solar cells, which need to fully understand the interfacial etching behavior and the microscopic …
During the making of solar cell, edge isolation process can be applied on the solar cells that affects IV characteristics of solar cell, which is critical to the efficiency. In this research work, …
In this study, we employed two different chemical etching processes to recover Si wafers from degraded Si solar cells. Each etching process consisted of two …
Surface texturing for suppressing the reflection losses is the first and foremost step in the solar cell fabrication process. Over the years, multi-crystalline silicon (mc-Si) wafer solar cells dominated the PV market due to their cost-effectiveness. This article reviews various etching methods reported for texturing mc-Si wafers under the ...
Metal electrodes, anti-reflection coatings, emitter layers, and p-n junctions must be eliminated from the solar cells in order to recover the Si wafers. In this study, we have carried out the etchant HF + H2O2 + CH3COOH wet chemical etching methods to selectively recover Silicon wafers from end-of-life Silicon solar cell. A recovered Si wafer ...
Controlling features and size of the light-trapping structure are keys to improving the reflection performance of silicon (Si) solar cells, which need to fully understand the interfacial etching behavior and the microscopic topography formation mechanism of the Si surface. In this study, microwave plasma with a temperature below 100 ...
A simple but effective chemical surface treatment method for removing surface damage from c-Si microholes is proposed by Park et al. A 25-cm2 large neutral-colored transparent c-Si solar cell with chemical surface …
Metal-Assisted Etching (MAE) has been shown to be a promising and low-cost alternative to the traditional acid-based isotropic texturing. This paper reports, for the first time, …
Stay updated with the latest news and trends in solar energy and storage. Explore our insightful articles to learn more about how solar technology is transforming the world.