Optimization of laser-patterning process and module design for transparent amorphous silicon thin-film module using thin OMO back electrode

Park, Jaeho; Choi, Soo‐Won; Lee, Sangah; Lee, Jae-Sung; Shin, Myunhun; Kwon, Jung‐Dae

doi:10.1016/j.solener.2020.02.092

Cited by 9 publications

(2 citation statements)

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“…The series resistance of the solar module was affected by the P2 process, which removed the absorption layer for the connection of the front and rear electrodes in the 2D equivalent circuit model. 50 To investigate the influence of the P2 process, we observed the scanning electron microscope (SEM) image of the P2 line, as shown in Figure 6a. The P2 line showed an unstable surface, and an over-processed shape appeared at the laser-processed edge by spot overlap.…”

Section: Resultsmentioning

confidence: 99%

“…The high CTM loss was attributed to the deterioration of series resistance by laser scribing. The series resistance of the solar module was affected by the P2 process, which removed the absorption layer for the connection of the front and rear electrodes in the 2D equivalent circuit model . To investigate the influence of the P2 process, we observed the scanning electron microscope (SEM) image of the P2 line, as shown in Figure a.…”

Section: Resultsmentioning

confidence: 99%

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Optimization of a Molybdenum Oxide Bilayer Facilitating Hole Transfer in the p/i Interface for Transparent Thin-Film Silicon Solar Cells and Modules Using Laser Scribing

Choi

Seo

Kim

et al. 2023

ACS Appl. Energy Mater.

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Transparent hydrogenated amorphous silicon solar cells were fabricated using a p-type window layer of molybdenum oxide (MoOx) for building-integrated photovoltaic (BIPV) windows. The MoOx layer was prepared with oxygen flow ratios from 0.03 to 0.21 by reactive sputtering, and the PV performance was improved using MoOx with an oxygen flow ratio of 0.09 because of the lower carrier recombination and parasitic absorption in the p layer. Additionally, we optimized the cell by introducing a MoOx bilayer, and the power conversion efficiency of the cell using an optimized MoOx bilayer was enhanced by boosted open circuit voltage through facilitating hole transfer. To realize the application of the BIPV window, we manufactured a monolithic connected solar module using the laser scribing process, and the cell-to-module loss was approximately 22.9%. Because MoOx remained after the P2 scribing process, residual MoOx played a role in the deterioration of the series resistance.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%