Defect analysis in polycrystalline silicon solar cells
Localized bulk defects like diffusion length variations and structural defects like grain boundaries are analyzed in polycrystalline silicon solar cells using laser scanning and deep level transient …
Silicon Solar Cells: Materials, Devices, and Manufacturing
The cells are sorted and binned according to their electrical performance and various mechanical and visual defects such as cosmetics, color nonuniformity, edge chips etc. ... S. Narayanan, J. …
Polycrystalline silicon passivated tunneling contacts for high ...
We apply n- and p-type polycrystalline silicon (poly-Si) films on tunneling SiOx to form passivated contacts to n-type Si wafers. The resulting induced emitter and n+/n back …
Grain boundary effects in polycrystalline silicon solar cells II ...
For polycrystalline silicon solar cells it has been demonstrated that an efficiency of about 15% could be produced with fibrously grained samples of grain size 100/am, …
Polycrystalline silicon thin-film solar cells: Status and perspectives
The present article gives a summary of recent technological and scientific developments in the field of polycrystalline silicon (poly-Si) thin-film solar cells on foreign …
Defect detection on Polycrystalline solar cells using ...
A small crack in the cell can affect its future performance in energy production. Nowadays, one of the most used techniques to detect these defects is Electroluminescence (EL), which allows …
Micro-Structural Defects in Polycrystalline Silicon Thin-Film Solar ...
The present work gives direct insight into how planar defects in LPC-Si thin films influence the device performance of the corresponding solar cells by acquiring electron …
A PV cell defect detector combined with transformer and …
Han et al. 20 proposed a deep learning-based defect segmentation method for polycrystalline silicon solar cells. This method employs an RPN to generate underlying defect …
Solar Energy Materials and Solar Cells
Defects in solar cells can be either predominantly morphological or electrical in nature or both. Electrical properties can vary at different locations within a single …
Grain Boundary effects in polycrystalline silicon solar cells
The revelant parameters of polycrystalline solar cell are shown in Table 1. In the case of a silicon solar cell, the major contribution to the photocurrent comes from the base …
Polycrystalline Silicon Cells: production and …
The solidification of the material results into cells that contain many crystals, making the surface of the poly-Si/ mc-Si cell less perfect than its mono-Si counterpart. Due to these defects, polycrystalline cells absorb less solar …
Convolution neural network based polycrystalline silicon …
It can be seen that the density distribution in the polycrystalline silicon cell (Fig. 2 (e) and Fig. 2 (f)) exhibits more complicated features than the monocrystalline (Fig. 2 (g) and …
Deep learning-based method for defect detection in …
The proposed ASDD-Net model achieves a processing frame rate of 69 frames per second, meeting the real-time defect detection requirements for solar cell surface defects, …
Micro-structural defects in polycrystalline silicon thin-film solar ...
More recently, a stabilised efficiency of 11.5% and the highest Voc of 656 mV have been reported for heterojunction silicon thin-film solar cells with an electron-beam LPC …
Defect behavior of polycrystalline solar cell silicon
The major objective of this study, conducted from October 1988 to September 1991, was to gain an understanding of the behavior of impurities in polycrystalline silicon and …
Polycrystalline silicon photovoltaic cell defects detection based …
Defects in polycrystalline silicon materials include impurities and lattice defects [7]. Short-Circuit: Caused when PV cells are operating [8]. Thick-Line: Too much silver paste is …
Polycrystalline silicon photovoltaic cell defects detection based on ...
Defects in polycrystalline silicon materials include impurities and lattice defects [7]. Short-Circuit: Caused when PV cells are operating [8]. Thick-Line: Too much silver paste is …
Dislocations in Crystalline Silicon Solar Cells
Dislocation is a common extended defect in crystalline silicon solar cells, which affects the recombination characteristics of solar cells by forming deep-level defect states in …
SEAM and EBIC studies of morphological and electrical defects in ...
Morphological and electrical defects in solar cells are distinguished by combining Scanning Electron Acoustic Microscopy (SEAM) and Electron Beam Induced Current (EBIC) techniques. …
(PDF) Deep learning-based method for defect …
To achieve defect detection in bare polycrystalline silicon solar cells under electroluminescence (EL) conditions, we have proposed ASDD-Net, a deep learning algorithm evaluated offline...
(PDF) Deep learning-based method for defect detection in ...
To achieve defect detection in bare polycrystalline silicon solar cells under electroluminescence (EL) conditions, we have proposed ASDD-Net, a deep learning algorithm …
Deep learning-based method for defect detection in …
defect detection in this study is the polycrystalline silicon solar cell. In Fig. 1 (c), regions with lower grayscale values in the EL image of the polycrystalline silicon solar cell correspond to