Mechanism and Modeling of Power Conversion Efficiency Degradation of Si Solar Cells Under Thermal Cycling
This study investigates the degradation mechanism in the power conversion efficiency of Si solar cells under thermal cycling (TC) and explores mathematical models of the degradation curve. TC experiments were conducted for two sets of solar modules. A novel method was introduced and implemented to e...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10419353/ |
| _version_ | 1797302690646065152 |
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| author | Changwoon Han Seungil Park |
| author_facet | Changwoon Han Seungil Park |
| author_sort | Changwoon Han |
| collection | DOAJ |
| description | This study investigates the degradation mechanism in the power conversion efficiency of Si solar cells under thermal cycling (TC) and explores mathematical models of the degradation curve. TC experiments were conducted for two sets of solar modules. A novel method was introduced and implemented to extract the parameters in the diode circuit model of solar cells using all experimental data points in the I-V curve. It was observed that both the series resistance and reverse saturation current increased after TC. When evaluating the increases using linear, exponential, and logarithmic functions, it was expected that the power output decreases to a range of 82 to 93 % after 5,000 TC if only the series resistance increases, while in the range of 86 to 94 % after 5,000 TC if only the reverse saturation current increases. The power drop mechanism of solar cells under TC can be attributed to the cracking of the solder layer due to TC, which increases not only the series resistance but also the reverse saturation current, resulting in drops in the power output of the solar cell. A goodness-of-fit analysis reveals that a stretched exponential model best represents the power drop function of a solar cell under TC. |
| first_indexed | 2024-03-07T23:41:35Z |
| format | Article |
| id | doaj.art-a651a88efa7b41efb23db288802c9be1 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-07T23:41:35Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-a651a88efa7b41efb23db288802c9be12024-02-20T00:00:38ZengIEEEIEEE Access2169-35362024-01-0112250522506510.1109/ACCESS.2024.336194710419353Mechanism and Modeling of Power Conversion Efficiency Degradation of Si Solar Cells Under Thermal CyclingChangwoon Han0https://orcid.org/0000-0002-9300-3328Seungil Park1Department of Mechanical Engineering, The State University of New York, Korea (SUNY Korea), Incheon, Republic of KoreaDepartment of Mechanical Engineering, The State University of New York, Korea (SUNY Korea), Incheon, Republic of KoreaThis study investigates the degradation mechanism in the power conversion efficiency of Si solar cells under thermal cycling (TC) and explores mathematical models of the degradation curve. TC experiments were conducted for two sets of solar modules. A novel method was introduced and implemented to extract the parameters in the diode circuit model of solar cells using all experimental data points in the I-V curve. It was observed that both the series resistance and reverse saturation current increased after TC. When evaluating the increases using linear, exponential, and logarithmic functions, it was expected that the power output decreases to a range of 82 to 93 % after 5,000 TC if only the series resistance increases, while in the range of 86 to 94 % after 5,000 TC if only the reverse saturation current increases. The power drop mechanism of solar cells under TC can be attributed to the cracking of the solder layer due to TC, which increases not only the series resistance but also the reverse saturation current, resulting in drops in the power output of the solar cell. A goodness-of-fit analysis reveals that a stretched exponential model best represents the power drop function of a solar cell under TC.https://ieeexplore.ieee.org/document/10419353/Si solar cellthermal cyclingpower degradation mechanismpower degradation curve |
| spellingShingle | Changwoon Han Seungil Park Mechanism and Modeling of Power Conversion Efficiency Degradation of Si Solar Cells Under Thermal Cycling IEEE Access Si solar cell thermal cycling power degradation mechanism power degradation curve |
| title | Mechanism and Modeling of Power Conversion Efficiency Degradation of Si Solar Cells Under Thermal Cycling |
| title_full | Mechanism and Modeling of Power Conversion Efficiency Degradation of Si Solar Cells Under Thermal Cycling |
| title_fullStr | Mechanism and Modeling of Power Conversion Efficiency Degradation of Si Solar Cells Under Thermal Cycling |
| title_full_unstemmed | Mechanism and Modeling of Power Conversion Efficiency Degradation of Si Solar Cells Under Thermal Cycling |
| title_short | Mechanism and Modeling of Power Conversion Efficiency Degradation of Si Solar Cells Under Thermal Cycling |
| title_sort | mechanism and modeling of power conversion efficiency degradation of si solar cells under thermal cycling |
| topic | Si solar cell thermal cycling power degradation mechanism power degradation curve |
| url | https://ieeexplore.ieee.org/document/10419353/ |
| work_keys_str_mv | AT changwoonhan mechanismandmodelingofpowerconversionefficiencydegradationofsisolarcellsunderthermalcycling AT seungilpark mechanismandmodelingofpowerconversionefficiencydegradationofsisolarcellsunderthermalcycling |