期刊
PROGRESS IN PHOTOVOLTAICS
卷 22, 期 8, 页码 863-869出版社
WILEY
DOI: 10.1002/pip.2322
关键词
metallization; screen printing; in situ TEM; BSF mechanism; Al back contact
资金
- Human Resources Development grant from the Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Korean Ministry of Knowledge Economy [20104010100640]
- New & Renewable Energy grant from KETEP - Korean Ministry of Knowledge Economy [20093021010010]
Back contacts for Si solar cells made by Al evaporation and screen printing Al paste were studied by transmission electron microscopy. Si was found to diffuse into the Al during heating. Si diffusion formed vacancies in the Si wafer and Al could then penetrate the Si wafer in spiked formations. The Al spikes retracted during cooling, leaving a doped back surface field region. Copyright (C) 2012 John Wiley & Sons, Ltd.
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