Abstract
Thermal atomic layer deposited (ALD) Al2O3 films are applied at the front and rear sides of PERC-type c-Si solar cells. At the front side, Al2O3/SiNx as a double-layer antireflection coating reduces the reflection loss, and at the rear side, Al2O3 film as the passivation layer decreases the surface recombination velocity and enhances the internal reflectance at near-infrared (NIR) band together with SiNx layer. Due to the improvement in the reflectance combined with a decrease of the surface recombination velocity, the PERC solar cells show an improved JSC by 0.2 mA/cm2 compared with the full-area back surface field cell.
| Original language | English |
|---|---|
| Article number | S22501 |
| Journal | Chinese Optics Letters |
| Volume | 10 |
| Issue number | SUPPL.2 |
| DOIs | |
| State | Published - Dec 2012 |
| Externally published | Yes |