183 75-N-Type16BB Mono TOPCon Bifacial Solar Cell

How efficient are Topcon solar cells?

Due to the potential for high theoretical limit efficiency as high as 28.7% and low cost , TOPCon solar cells have become one of the prospective technologies in the photovoltaic (PV) market . At present, the highest efficiency for n-TOPCon has achieved 26.4% on an area of 330.15 cm 2 at JinkoSolar .

What are N-Topcon solar cells?

The appeal of n-TOPCon solar cells is in the incorporation of rear passivating contacts consisting of n-type polycrystalline silicon (poly-Si) and interfacial SiO x films, which provide low recombination current density (J0) and contact resistivity (ρc) simultaneously .

How bifacial N-Topcon devices improve solar cell efficiency?

241.3 cm 2 -large bifacial n-TOPCon devices with 23.01% certified efficiency demonstrated. Using ≥ 150 nm of poly-Si and polished rear side improves the solar cell efficiency. 1-cell glass-glass laminates of the devices pass damp heat and thermal cycling tests. Roadmap to 25.5% efficiency presented.

How efficient are Topcon bifacial cells?

After optimizing the passivation process, the industrial-grade TOPCon bifacial cells reached an efficiency (Eff), Voc, Jsc, and FF values as high as 25.4%, 721 mV, 42.2 mA/cm 2, and 83.5%, respectively. 1. Introduction

How efficient are N-Topcon solar cells?

Cells with J0, n+ ≈5 fA/cm 2 (50 nm) and Jo, metal,n++ ≈73.8 fA/cm 2 (110 nm) exhibited the efficiency gain of 0.12%. A pilot efficiency >25.4% of cells treated with optimized passivation process. Improving the conversion efficiency of n-TOPCon solar cell is still a hot topic.

What are the parameters of N-Topcon solar cells?

I – V parameters of n-TOPCon solar cells with 150 nm thick poly-Si in the passivating contact at the rear and different rear surface morphologies. Averages and standard deviations were obtained by measurements on 7–14 devices per group. Parameters of the best solar cell are also shown.