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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.

 

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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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