However, the optical mismatch can be improved by the pyramid structure used in the PDMS film The solar cells used in this experiment are commercial glass-covered polycrystalline silicon solar cells (Misole New Energy Technology Co., China) and their components are presented in Fig. 6 (c). The temperature in the solar cell was recorded by a
We achieved an inverted pyramid structure, meeting the tradeoff between the light reflection minimization and carrier recombination by adjusting the one-step Cu-assisted texturization of silicon wafer, and silicon solar cells based on this structure were fabricated, which gained a high conversion efficiency of 18.87% without using
The inverted pyramid structures prepared by alkaline etching showed regular shapes and sizes that met the requirements for silicon solar cells. This method can be applied to different types of polished or diamond wire-cut
Incorporating micro-nano structures onto the surface of crystalline silicon (c-Si) solar cells to optimize their light absorption capability and improve photoelectric conversion efficiency is a feasible approach. Here, we propose an ultra-thin c-Si solar cell with a stepped pyramid nanostructure for efficient absorption, which consists of the
Hence, the literature offers a wide variety of light trapping structures for ultra-thin silicon solar cells, ranging from carefully engineered photonic crystals to randomly produced upright pyramids. However, a detailed comparison of these structures from an optical, morphological and fabrication perspective is required to guide an
From the table, it is evident that, compared to the upright pyramid structure, the solar cells with the analogous inverted pyramid structure exhibit a noticeable increase in short-circuit current density by 0.38 mA/cm 2. Although the change in fill factor is not significant, there is a slight decrease in open-circuit voltage, which we attribute
The study demonstrates that both pyramid height and base angle critically influence the reflectance and electrical performance of solar cells. Optimal pyramid dimensions are 3 μm height and a 62° base angle minimizing reflectance and maximizing key parameters such as V OC, I SC, FF, and efficiency, highlighting the need for precise
In recent years, plasmonics has been widely employed to improve light trapping in solar cells. Silver nanospheres have been used in several research works to improve the capability of solar absorption. In this
By adjusting the KOH/H 2 O texturing condition intendedly, different random pyramidal textures with the average pyramid size of 8 μm (large), 4 μm (medium) and 1.5 μm (small) were prepared on N type M2 monocrystalline silicon substrates for the fabrication of silicon heterojunction (SHJ) solar cell. It was evidenced that the pyramid
In this paper, we study the key factors determining pyramid size and realize effective pyramid size control, and put our emphasis on the effects of pyramid size on the
Here, we design a hybrid interface by tuning pyramid apex-angle to improve c-Si/a-Si:H interfacial morphology in silicon solar cells. The pyramid apex-angle (slightly smaller than 70.53°)...
The device diagram of mono-crystalline silicon PERC solar cell with inverted pyramid structures. The surface morphology of the mono-crystalline silicon wafer was measured by scanning electron microscopy (SEM, Hitachi, S4800, Chiyoda-ku, Japan). The surface reflectivity of silicon wafers, internal quantum efficiency (IQE) and external quantum efficiency
A pyramid structure etched with KOH solution was employed on a silicon (Si) surface to increase the absorbing path length of light; subsequently, gold (Au) nanoparticles (NPs) were deposited on
In comparison with the pyramidal structure, which is widely used for Si solar cells, the inverted pyramidal structure has the same micrometer scale but lower reflectivity and higher light
Here, we design a hybrid interface by tuning pyramid apex-angle to improve c-Si/a-Si:H interfacial morphology in silicon solar cells. The pyramid apex-angle (slightly smaller
In silicon solar cells, mono-crystalline silicon is etched by wet-che-mical alkali etching to form an upright pyramid (UP) structure [1–5], and an UP with a smaller structure size has more edges
Surface texturing is one of the key steps in the manufacturing process of mono-crystalline silicon solar cells. The mainstream texturing process applied currently is based on
However, improving the light absorption of thin film GaAs solar cells to further enhance the PCE of GaAs solar cells has become the main research topic as the thickness of GaAs solar cells decreases [6]. At present, introducing microstructures into solar cells is one of the main methods to improve the light absorption of solar cells. Various microstructures have
We achieved an inverted pyramid structure, meeting the tradeoff between the light reflection minimization and carrier recombination by adjusting the one-step Cu-assisted texturization of silicon wafer, and silicon solar cells based on this structure were fabricated, which gained a high conversion efficiency of 18.87% without using any complex techniques.
Surface texturing is one of the key steps in the manufacturing process of mono-crystalline silicon solar cells. The mainstream texturing process applied currently is based on alkaline texturing that produces upright pyramids (UPs)-structured surface, while the inverted pyramids (IPs) structure has also received growing interest due
By adjusting the KOH/H 2 O texturing condition intendedly, different random pyramidal textures with the average pyramid size of 8 μm (large), 4 μm (medium) and 1.5 μm
Incorporating micro-nano structures onto the surface of crystalline silicon (c-Si) solar cells to optimize their light absorption capability and improve photoelectric conversion efficiency is a feasible approach. Here, we
The inverted pyramid structures prepared by alkaline etching showed regular shapes and sizes that met the requirements for silicon solar cells. This method can be applied to different types of polished or diamond wire-cut silicon wafers. Based on many experiments, we proposed a mechanism for preparing inverted pyramid structures by
The study demonstrates that both pyramid height and base angle critically influence the reflectance and electrical performance of solar cells. Optimal pyramid
Surface texturing is one of the key steps in the manufacturing process of mono-crystalline silicon solar cells. The mainstream texturing process applied currently is based on alkaline texturing that produces upright pyramids (UPs)-structured surface, while the inverted pyramids (IPs) structure has also received growing interest due to the lower reflectance. Here,
Hence, the literature offers a wide variety of light trapping structures for ultra-thin silicon solar cells, ranging from carefully engineered photonic crystals to randomly produced
By adjusting the KOH/H 2 O texturing condition intendedly, different random pyramidal textures with the average pyramid size of 8 μm (large), 4 μm (medium) and 1.5 μm (small) were prepared on N type M2 monocrystalline silicon substrates for the fabrication of silicon heterojunction (SHJ) solar cell.
Small pyramidal texture has good uniformity of the pyramid size distribution. Uniform pyramidal texture is highly anti-reflective and can be passivated well. Uniform small pyramidal texture brings the solar cell high J SC and V OC, but low FF. Low FF is due to the increased contact resistance of the TCO/Ag interface with voids.
It is observed that the sizes of the pyramids are estimated to be about 1–3 μm. In addition, the surfaces are homogeneous in a large scale up to hundreds of microns, suggesting an effective surface texturing by the applied two etching procedures.
Thus pyramid texturing has become a standard process for the c-Si solar cell fabrication. The industrialization of silicon heterojunction (SHJ) solar cell is nowadays developing rapidly due to its concise process, high efficiency and excellent power output performance.
The reflectance decreases dramatically from 37% for the planar surface to about 13% for the pyramidal texture regardless of the pyramid size is small or large. This means that ideal and uniform pyramids with different size can take the same effect on the reflectance.
The unexpected crystalline silicon epitaxial growth and interfacial nanotwins formation remain a challenging issue for silicon heterojunction technology. Here, the authors design a hybrid interface by tuning pyramid apex-angle to improve c-Si/a-Si:H interfacial morphology in silicon solar cells.
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