An Analysis of Fill Factor Loss Depending on the Temperature for the Industrial Silicon Solar Cells

Kwan Hong Min, Taejun Kim, Min Gu Kang, Hee-eun Song, Yoonmook Kang, Hae-Seok Lee, Donghwan Kim, Sungeun Park and Sang Hee Lee
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Kwan Hong Min: Photovoltaics Laboratory, Korea Institute of Energy Research, Daejeon 34129, Korea
Taejun Kim: Hyundai Energy Solutions, PV R&D Center, Eumseong, Cheongju 27711, Korea
Min Gu Kang: Photovoltaics Laboratory, Korea Institute of Energy Research, Daejeon 34129, Korea
Hee-eun Song: Photovoltaics Laboratory, Korea Institute of Energy Research, Daejeon 34129, Korea
Yoonmook Kang: Department of Energy Environment Policy and Technology, Green School, Graduate School of Korea Energy and Environment, Korea University, Seoul 02841, Korea
Hae-Seok Lee: Department of Energy Environment Policy and Technology, Green School, Graduate School of Korea Energy and Environment, Korea University, Seoul 02841, Korea
Donghwan Kim: Department of Materials Science and Engineering, Korea University, Seoul 02841, Korea
Sungeun Park: Photovoltaics Laboratory, Korea Institute of Energy Research, Daejeon 34129, Korea
Sang Hee Lee: Photovoltaics Laboratory, Korea Institute of Energy Research, Daejeon 34129, Korea

Energies, 2020, vol. 13, issue 11, 1-10

Abstract: Since the temperature of a photovoltaic (PV) module is not consistent as it was estimated at a standard test condition, the thermal stability of the solar cell parameters determines the temperature dependence of the PV module. Fill factor loss analysis of crystalline silicon solar cell is one of the most efficient methods to diagnose the dominant problem, accurately. In this study, the fill factor analysis method and the double-diode model of a solar cell was applied to analyze the effect of J 01 , J 02 , R s , and R sh on the fill factor in details. The temperature dependence of the parameters was compared through the passivated emitter rear cell (PERC) of the industrial scale solar cells. As a result of analysis, PERC cells showed different temperature dependence for the fill factor loss of the J 01 and J 02 as temperatures rose. In addition, we confirmed that fill factor loss from the J 01 and J 02 at elevated temperature depends on the initial state of the solar cells. The verification of the fill factor loss analysis was conducted by comparing to the fitting results of the injection dependent-carrier lifetime.

Keywords: fill factor loss analysis; double-diode model; PERC; temperature dependence; recombination current density; parasitic resistance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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