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http://dx.doi.org/10.21218/CPR.2018.6.4.094

Improved Understanding of LeTID of Single-crystalline Silicon Solar Cell with PERC  

Kim, Kwanghun (R&D center, Woongjin Energy)
Baik, Sungsun (R&D center, Woongjin Energy)
Park, Jaechang (R&D center, Woongjin Energy)
Nam, Wooseok (R&D center, Woongjin Energy)
Jung, Jae Hak (School of Chemical Engineering, Yeungnam University)
Publication Information
Current Photovoltaic Research / v.6, no.4, 2018 , pp. 94-101 More about this Journal
Abstract
Light elevated temperature induced degradation (LeTID) was noted as an issue in multi-crystalline silicon solar cells (MSSC) by Ram speck in 2012. In contrast to light induced degradation (LID), which has been researched in silicon solar cells for a long time, research about both LeTID and the mechanism of LeTID has been limited. In addition, research about LeTID in single-crystalline silicon solar cells (SSSC) is even more limited. In order to improve understanding of LeTID in SSSC with a passivated emitter rear contact (PERC) structure, we fabricated four group samples with boron and oxygen factors and evaluated the solar cell characteristics, such as the cell efficiency, $V_{oc}$, $I_{sc}$, fill factor (FF), LID, and LeTID. The trends of LID of the four group samples were similar to the trend of LeTID as a function of boron and oxygen.
Keywords
LeTID; LID; PERC; Single-crystalline silicon solar cell; p-type boron; Oxygen;
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