Abstract
The dispersion effect of double-layer (DL) anti-reflection coatings (ARCs) is considered. The reflectance of DL SiO2/ZnSe and the SiO2/ZnS ARCs as a function of wavelength and weighted reflectance for SiO2 top anti-reflection coatings with different thicknesses in GaAs solar cells are calculated according to the optical interference matrix. The resulting curves are compared to those without dispersion effect. The results show that the dispersion effect noticeably influences the reflectance of DL ARCs, especially in the spectral range from 300 to 500 nm. Moreover, different effects are displayed in different DL ARCs. Compared to those without dispersion effect, the minimal weighted reflectance of SiO2/ZnSe DL ARCs increases from 1.14% to 1.55%, while that of SiO2/ZnS DL ARCs decreases from 1.49% to 1.46%.
Original language | English |
---|---|
Pages (from-to) | 725-729 |
Number of pages | 5 |
Journal | Pan Tao Ti Hsueh Pao/Chinese Journal of Semiconductors |
Volume | 27 |
Issue number | 4 |
State | Published - Apr 2006 |
Externally published | Yes |
Keywords
- Dispersion effect
- Double-layer antireflective coatings
- GaAs solar cell
- Weighted reflectance