Nature Energy, Published online: 01 May 2026; doi:10.1038/s41560-026-02051-4 As silicon solar cells approach their theoretical efficiency limit, further performance gains become increasingly difficult. Two studies now demonstrate advances in mainstream tunnel oxide passivating contact technology: one improves the boron emitter and polysilicon in the standard design, while the other proposes an alternative cell architecture that overcomes limitations of the mainstream approach.
Nature Energy, Published online: 01 May 2026;
doi:10.1038/s41560-026-02051-4
As silicon solar cells approach their theoretical efficiency limit, further performance gains become increasingly difficult. Two studies now demonstrate advances in mainstream tunnel oxide passivating contact technology: one improves the boron emitter and polysilicon in the standard design, while the other proposes an alternative cell architecture that overcomes limitations of the mainstream approach.
— Source: Nature Energy (https://www.nature.com/articles/s41560-026-02051-4)