Investigation of Al back contacts and BSF formation by in situ TEM for silicon solar cells
| Autor: | Sungeun Park, Chang Sik Son, Young Do Kim, Jooyoung Song, Sung Ju Tark, Donghwan Kim, Sewang Yoon, Chel-Jong Choi, Soonwoo Kwon |
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| Rok vydání: | 2012 |
| Předmět: |
In situ
Materials science Silicon Renewable Energy Sustainability and the Environment business.industry Doping chemistry.chemical_element Nanotechnology Condensed Matter Physics Evaporation (deposition) Electronic Optical and Magnetic Materials chemistry Transmission electron microscopy Screen printing Optoelectronics Wafer Electrical and Electronic Engineering Diffusion (business) business |
| Zdroj: | Progress in Photovoltaics: Research and Applications. 22:863-869 |
| ISSN: | 1062-7995 |
| DOI: | 10.1002/pip.2322 |
| Popis: | 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 © 2012 John Wiley & Sons, Ltd. |
| Databáze: | OpenAIRE |
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