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Dr. Kaifu Qiu

(Forschungszentrum Jülich GmbH, Project Manager)

Transparent Passivating Contact for Crystalline Silicon Solar Cells Approaching Efficiencies of 24%

Monday, April 19, 10:00 (CEST)

The talk will present a transparent passivating contact (TPC) consisting of a thin SiO2 followed by a hydrogenated nanocrystalline silicon carbide (nc-SiC:H(n)). The best TPC solar cell reached a certified efficiency of 23.99%. The passivation mechanism and the working principle of TPC are investigated. Optical loss analysis is also presented to address the superior of TPC in transparency.



Michael Winter

(ISFH, PhD candidate)

Understanding Light-Induced Degradation Effects in Ga-doped Cz-Si and B-doped FZ-Si Materials

Tuesday, April 20, 16:15 (CEST)

We examine degradation phenomena on fired Ga-doped Cz-Si and B-doped FZ-Si as a function of illumination intensity and temperature. The observed lifetime degradation effects are qualitatively similar and the extent of degradation increases with increasing temperature. During prolonged illumination at elevated temperature (135 °C), we observe a permanent regeneration of the lifetime, whereas at temperatures close to room temperature (36 °C), the defect deactivation is only temporary.


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Dates & Deadlines

Start of online registration: February 10, 2021
End of early bird: March 8, 2021
Deadline for full papers: April 23, 2021
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