Comparison of innovative metallization approaches for silicon heterojunction solar cells
| Autor: | Florian Clement, A. Lorenz, Maximilian Pospischil, D. Erath, Roman Keding, Igor Lacmago Lontchi, Mike Jahn |
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| Přispěvatelé: | Publica |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Inkwell business.industry 020209 energy Energy conversion efficiency Nozzle Nanotechnology 02 engineering and technology Line width Screen printing 0202 electrical engineering electronic engineering information engineering Silicon heterojunction Optoelectronics Wafer business Curing (chemistry) |
| Popis: | Within this study, different metallization approaches were investigated and compared with respect to their applicability for silicon heterojunction (SHJ) solar cells. A printed line width of 34 µm with an aspect ratio of 0.59 was reached by double fine-line screen printing. In parallel, ink jet printing and its applicability regarding in-situ curing was evaluated. It was found that spreading of the ink is substantially reduced by choosing the optimum substrate temperature, enabling for a line width of 32 µm. Successful dispensing of a low-temperature silver paste was achieved by using a ten nozzle print head. By means of screen printed contact grids on both sides, solar cells with a conversion efficiency of 21.9 % were produced with industrial precursor wafers. |
| Databáze: | OpenAIRE |
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