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Quality Deterioration of Multicrystalline Silicon Solar Cell in Transporting Environment
C.-C. Chou, C.F. Hsieh, T.-C. Wu, H.-S. Wu, M.-A. Tsai, D.-R. Huang
Defects, Solar Cell, Quality, Transportation, Transshipment
Wafer-Based Silicon Solar Cells and Materials Technology
Subtopic: Silicon Solar Cell Characterization and Modelling
Event: 27th European Photovoltaic Solar Energy Conference and Exhibition
Session: 2BV.5.15
1373 - 1375
ISBN: 3-936338-28-0
Paper DOI: 10.4229/27thEUPVSEC2012-2BV.5.15
0,00 EUR
Document(s): paper


This study described the degradation by variance of surface and quantum efficiency (QE) in multicrystalline silicon solar cell (mc-Si solar cell) after vibration test which was simulated under the condition of land & air transportation. The vibration test follows some procedures from an unleashed draft of one developing international Standard. Mechanical defects on the surface of solar cell were obviously inspected by recognizable patterns evolving, shown from the method of electroluminescence (EL) imaging. The patterns were classified into 7 types by symptoms of crack/micro-crack. On the other hand, quantum efficiency variances of cell were measured in incident photon-to-electron conversion efficiency (IPCE), i.e. IPCE performance worst-case drop was found indeed in spectrum as 23.7%. After vibration test, total breakage rate is near 1% and some specific cells had 3% power loss. EL images showed the sufficient evidences of defect’s growth due to mc-Si cells experienced vibration response during transshipment simulation. Furthermore, this applied research provided a common vibration test from a prenormative Standard, and two nondestructive test method, EL and QE/IPCE to evaluate the damaged spot on mc-Si solar cells. Result shall also be considered as one key point to improve transportation package as well in the future.