Hydrogenation of Phosphorus-Doped Polycrystalline Silicon Films for Passivating Contact Solar Cells.
Thien N Truong, Di Yan, Christian Samundsett, Rabin Basnet, Mike Tebyetekerwa, Li Li, Felipe Kremer, Andres Cuevas, Daniel Macdonald, Hieu T Nguyen
ACS Applied Materials and Interfaces | American Chemical Society | Published : 2019
We characterize and discuss the impact of hydrogenation on the performance of phosphorus-doped polycrystalline silicon (poly-Si) films for passivating contact solar cells. Combining various characterization techniques including transmission electron microscopy, energy-dispersive X-ray spectroscopy, low-temperature photoluminescence spectroscopy, quasi-steady-state photoconductance, and Fourier-transform infrared spectroscopy, we demonstrate that the hydrogen content inside the doped poly-Si layers can be manipulated to improve the quality of the passivating contact structures. After the hydrogenation process of poly-Si layers fabricated under different conditions, the effective lifetime and ..View full abstract