The latest results on the use of porous silicon (PS) as an antireflection coating (ARC) in simplified processing for multicrystalline silicon (mc-Si) solar cells are presented. A PS layer with optimal antireflection characteristics was obtained for charge density (Q) of 5.2 C cm2. The weighted reflectance was reduced to 4.7% in the range of wavelengths between 400 and 1000 nm. Also, the optimization of a PS selective emitter formation results in a 13.2% efficiency mc-Si cell (2×2 cm2) with the electroplating method. Specific attention is given to the implementation of a PS ARC into a commercially compatible screen-printed solar cell process.
ASJC Scopus subject areas
- Physics and Astronomy(all)