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US 2022/0069150 A1Published application
Non-contacting thick-film busbar pastes for crystalline silicon solar cell emitter surfaces
AssigneeJiangxi Jiayin Science and Technology, Ltd.
InventorsMeijun LU, Kurt R. MIKESKA, Yawen XU, Baiqiang LIU, Feibiao CHEN, Xianqing XIE
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Abstract
Devices, methods, and systems are described for thick-film, screen-printable paste with inorganic frit for printing floating, non-contacting busbar line electrodes. Paste may be applied to crystalline solar cell emitter surfaces. The frit system contains both bismuth and boron. The described non-contacting busbar paste has superior solar cell performance compared to single-print conductor pastes.
Claims28
An electro-conductive thick-film, screen-printable paste comprising:
- a non-contacting inorganic frit system including an inorganic frit including bismuth (Bi) and boron (B) wherein 0.01≤Bi≤0.95 wherein Bi is the mole fraction of bismuth cations based on the total number of moles of bismuth and boron cations in the frit.
Dependencies are inferred from the claim text.