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Inkjet‐ and FlexTrail‐Printing with Low Silver Consumption for Silicon Heterojunction Solar Cells
Author(s) -
Schube Jörg,
Fellmeth Tobias,
Jahn Mike,
Keding Roman,
Glunz Stefan W.
Publication year - 2019
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201970034
Subject(s) - inkwell , materials science , indium tin oxide , optoelectronics , heterojunction , screen printing , nanotechnology , silicon , solar cell , indium , layer (electronics) , composite material
A novel printing technology, called FlexTrail printing, is introduced in article no. 1900186 . Utilizing a commercial Ag nanoparticle ink, the mean finger width is reduced down to 16 μm on the front side of silicon heterojunction solar cells. They exhibit alkaline textured surfaces covered with indium tin oxide layers. The inherent characteristic of FlexTrail printing enables interruption‐free ink application as well as high tolerance towards ink formulation and process temperature. Furthermore, FlexTrail printing offers a high throughput potential and low ink laydown. Finally, the extremely narrow fingers printed on heterojunction cells’ front sides enable very high conversion efficiencies.