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Investigation of Al back contacts and BSF formation by in situ TEM for silicon solar cells
- Authors
- Park, Sungeun; Song, Jooyoung; Tark, Sung Ju; Kim, Young Do; Choi, Chel-jong; Kwon, Soonwoo; Yoon, Sewang; Son, Chang-Sik; Kim, Donghwan
- Issue Date
- Aug-2014
- Publisher
- WILEY
- Keywords
- metallization; screen printing; in situ TEM; BSF mechanism; Al back contact
- Citation
- PROGRESS IN PHOTOVOLTAICS, v.22, no.8, pp.863 - 869
- Indexed
- SCIE
SCOPUS
- Journal Title
- PROGRESS IN PHOTOVOLTAICS
- Volume
- 22
- Number
- 8
- Start Page
- 863
- End Page
- 869
- ISSN
- 1062-7995
- Abstract
- 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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Related Researcher
- KIM, Dong hwan
- 공과대학 (Department of Materials Science and Engineering)