Solar cell with improved performance
AssigneeL'Air Liquide, Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude
InventorsMichael Davies, Junegie Hong, Genowefa Jakubowska-Okoniewski, Sergiy Navala, Xiaoming Yang, Ajeet Rohatgi, Moon Hee Kang, Abasifreke Udo Ebong, Brian Charles Rounsaville
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Abstract
This application discloses silicon solar cells manifesting enhanced light induced degradation characteristics. The application also discloses silicon solar cells with a silicon-based substrate comprising boron, oxygen and carbon, and an antireflective coating (ARC) containing at least one carbon-containing layer adjacent to the substrate. Also disclosed are methods for preparing solar cells.
Claims21
1-14. (canceled)
A solar cell comprising:
- a silicon substrate comprising boron, oxygen, and carbon;
- and
- an antireflective and passivation layer comprising at least one silicon carbonitride layer adjacent to the substrate, the at least one silicon carbonitride layer having a carbon concentration of from 1 to 10 at. %, an oxygen concentration of less than 3 at. %, and a hydrogen concentration greater than 10 at. %.
A method for preparing a silicon solar cell having a silicon substrate comprising boron, oxygen, and carbon, the method comprising depositing on the silicon substrate an antireflective and passivation layer comprising silicon and carbon and diffusing carbon from the antireflective and passivation layer into the silicon substrate.
Dependencies are inferred from the claim text.