Polarization Type Potential Induced Degradation under Positive Bias in a Commercial PERC Module: Preprint

Conference · Wed Jan 03 04:00:00 EST 2024

DOI:https://doi.org/10.1109/PVSC48320.2023.10359620· OSTI ID:2280661

Mahmood, Farrukh ibne; Li, Fang; Hacke, Peter; Molto, Cecile; Siegneur, Hubert; TamizhMani, GovindaSamy

Potential induced degradation of the polarization type (PID-p) can reduce module performance in a relatively short period of time. PID-p can occur at both voltage polarities, but most studies are focused on degradation under a negative bias. This paper uses commercial bifacial passivated emitter and rear contact (PERC) cells within a monofacial glass-backsheet module construction to evaluate the impact of PID-p under a positive bias on the front side. Using the aluminum-foil (Al-foil) method, the module was stressed for PID in an environmental chamber. After the stress, the maximum power (Pmax) showed a decline of 3.1% at 1000 W/m2 and 6.2% at 200 W/m2. Recovery under light was also investigated. Complete recovery was observed at high irradiance, while a partial recovery was seen at lower irradiance. The outcomes of this study can help in understanding PID-p degradation under a positive bias and its recovery under the light.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 2280661
• Report Number(s): NREL/CP-5K00-86992; MainId:87767; UUID:715104eb-1e82-4435-a382-101c5525af1b; MainAdminID:71113
• Country of Publication: United States
• Language: English

Related Subjects

PERC
SOLAR ENERGY
polarization
positive bias
potential induced degradation
recovery