It is essential to ensure the longevity of photovoltaic modules to promote the development of solar technology, but these PV cells are vulnerable to various external factors. Even minor ...
In this study, a deep convolutional neural network (CNN) model using residual connections and spatial pyramid pooling (SPP) is proposed for the efficient classification of PV cell defects. The proposed CNN model is built on the Inception-v3 network. In this way, feature maps in inception modules are shared to reuse in deeper layers and the representation ability of features is …
Photovoltaic Cell is an electronic device that captures solar energy and transforms it into electrical energy. It is made up of a semiconductor layer that has been carefully processed to transform sun energy into electrical energy. The term "photovoltaic" originates from the combination of two words: "photo," which comes from the Greek word "phos," meaning …
EPJ Photovoltaics, an Open Access journal in Photovoltaics, which publishes original, peer-reviewed papers focused in the field of photovoltaic solar energy conversion Detection of microcracks and dark spots in monocrystalline PERC cells using photoluminescene imaging and YOLO-based CNN with spatial pyramid pooling | EPJ Photovoltaics
In this context, PV industry in view of the forthcoming adoption of more complex architectures requires the improvement of photovoltaic cells in terms of reducing the related loss mechanism ...
Perovskite solar cells (PSCs) still suffer from varying degrees of optical and electrical losses. To enhance the light decoupling and capture ability of Planar PSCs, an ultra-thin PSC structure with an Al2O3 pyramid anti-reflection layer (Al2O3 PARL) is proposed. The effect of the structure of the Al2O3 PARL on the photoelectric performance of PSCs was investigated …
A new monolithic perovskite/silicon tandem solar cell architecture is proposed based on double-side-textured silicon cells with sub-micrometer pyramids. These pyramids are rough enough to scatter light …
The PCE of Gr/SiPa solar cells could reach up to 5.67%. Keywords Gr/Si solar cells · TMAH · Surface texturing · Silicon pyramid array 1 Introduction The mission of carbon emission reduction are pushing the global energy structure toward a cleaner and more sustain-able development. For this reason, photovoltaic technol-
The inverted pyramid-based nanostructured black-silicon (BS) solar cells with Al2O3 passivation layer grown by atomic-layer-deposition (ALD) have been demonstrated.
Solar photovoltaic is a promising technology to generate electricity. One of the major issues for flat photovoltaic (PV) panels is that as more energy is produced, the PV panel temperature increases and the conversion efficiency (CE) reduces. The commercial PV panel mostly has CE at around 20%, which means the majority of absorbed solar power ...
In some PV cells, the contact grid is embedded in a textured surface consisting of tiny pyramid shapes that result in improved light capture. A small segment of a cell surface is illustrated in Figure 2(b). A complete PV cell with a standard …
Request PDF | CNN based automatic detection of photovoltaic cell defects in electroluminescence images | Automatic defect detection is gaining huge importance in photovoltaic (PV) field due to ...
Image Courtesy of The School of Photovoltaic & Renewable Energy Engineering, University of New South Wales. Another type of surface texturing used is known as "inverted pyramid" texturing3,4. Using this texturing scheme, the pyramids are etched down into the silicon surface rather than etched pointing upwards from the surface. A photograph of ...
Surface texturing is one of the most important techniques for improving the performance of photovoltaic (PV) device. As an appealing front texture, inverted pyramid (IP) has attracted lots of research interests due to its superior antireflection effect and structural characteristics. In this paper, we prepare high-uniform silicon (Si) IPs structures on a …
1 INTRODUCTION. Forty years after Eli Yablonovitch submitted his seminal work on the statistics of light trapping in silicon, 1 the topic has remained on the forefront of solar cell research due to the prevalence of silicon in the photovoltaic (PV) industry since its beginnings in the 1970s. 2, 3 Despite the rise of a plethora of alternative technologies, more than 90% of …
The quantum efficiency and photovoltaic conversion efficiency of these solar cells were tested by Enlitech QE-R and PVIV-411V systems, respectively. 3. Inverted pyramid nanostructure formation . It is well-accepted that the chemical reactions occur near the noble metal when the Si substrate is etched with an etchant consisting of HF and H 2 O 2. In the …
raw PV cell EL images. Index Terms—photovoltaic cell, multi-scale defect de-tection, deep learning, cosine non-local attention, feature pyramid network I. INTRODUCTION T HE multicrystalline photovoltaic (PV) cell defects will lead to a seriously negative impact on the power gener-ation efficiency. Moreover, these defective cells will generate
The best solar cell obtained based on the textured structure showed superior photovoltaic property, and its photovoltaic conversion efficiency reached 18.17%, which was significantly higher than that of solar cell without texture structure. The improvement in efficiency was mainly owing to the light-trapping effect of texture structure, which was confirmed by the …
We discovered a technical solution of such outstanding importance that it can trigger new approaches in silicon wet etching processing and, in particular, photovoltaic cell manufacturing. The so ...
Index Terms—photovoltaic solar cell, multi-scale defect detection, deep learning, cosine non-local attention, feature pyramid network I. INTRODUCTION T HE multicrystalline solar cell defects will lead to a seri-ously negative impact on the power generation efficiency. Moreover, these defective cells will generate a lot of heat in
Such Pmc-Si solar cells have showed similar light trapping ability as single crystalline silicon solar cells of micrometer pyramid texture, and the improved efficiency is mainly ascribed to its enhanced light absorption while the nanostructured surface still keeps acceptable passivation quality, that is, the short-circuit current density has an increase of ≈300 mA cell –1, …
Figure 1(a) has shown a schematic of an ultra-thin GaAs solar cell with pyramid array in this paper. The model parameters of an / / heterojunction active layer is taken from the literature [] as considering this solar cell structure is thin film experimental solar cells is mainly consisted of four layers, a 40 nm window layer and followed by active layer of GaAs, which is …
DOI: 10.1016/J.SOLENER.2016.12.007 Corpus ID: 126181381; High efficiency multi-crystalline silicon solar cell with inverted pyramid nanostructure @article{Jiang2017HighEM, title={High efficiency multi-crystalline silicon solar cell with inverted pyramid nanostructure}, author={Ye Jiang and Honglie Shen and Pu Tian and Chaofan Zheng …
In this study, a deep convolutional neural network (CNN) model using residual connections and spatial pyramid pooling (SPP) is proposed for the efficient classification of PV …
Graphene/silicon (Gr/Si) solar cells have aroused extensive research interest due to their simple structure and great potential for low-cost photovoltaic applications. Enhancing light absorption is one of the mainstream methods to improve the performance of Gr/Si solar cell. In this paper, a large scale inverted pyramid array (IPa) was prepared by a simple and cost …
Radiative cooling is an electricity-free method for solar cells to dissipate waste heat, which has drawn much attention in recent years. In this paper, a periodic pyramid-textured polydimethylsiloxane (PDMS) film is proposed for radiative cooling of encapsulated commercial silicon solar cells.Spectral tests show that the proposed pyramid-textured PDMS film emits …
Photovoltaic (PV) Cell P-V Curve. Based on the I–V curve of a PV cell or panel, the power–voltage curve can be calculated. The power–voltage curve for the I–V curve shown in Figure 6 is obtained as given in Figure 7, where the MPP is the maximum point of the curve, labeled with a star. The I–V curve and power–voltage curve showed are under a specific …
Photovoltaic cell defect classification using convolutional neural network and support vector machine ISSN 1752-1416 Received on 26th November 2019 Revised 29th June 2020 Accepted on 23rd July 2020 E-First on 2nd October 2020 doi: 10.1049/iet-rpg.2019.1342 Ashfaq Ahmad1,2, Yi Jin1, Changan Zhu1, Iqra Javed3, Asim Maqsood2, Muhammad Waqar …
Higher short circuit current density ( Jsc) and photovoltaic conversion efficiency (PCE) are obtained for the solar cell with pyramid–nanohole texture due to its better …
Research Papers Assessment of using energy recovery from a sustainable system including a pyramid-shaped photovoltaic cells and batteries to reduce heating energy demand in the ventilation section Turki AlQemlas a, Meshari A. Al-Ebrahim b, Nidal H. Abu-Hamdeh c,d,e,*, Rashad A.R. Bantan f a College of Engineering and Technology, American ...
Photovoltaic Cell Defect Classification based on Integration of Residual-Inception Network and Spatial Pyramid Pooling in Electroluminescence Images
