Low-iron patterned solar glass, combined with nanometer anti-reflective coating technology, is applied for solar modules. It increases solar transmittance by way of decreasing light reflectance, thus increasing solar cell efficiency. Besides, it reduces the reflected glare of the glass and the pollution caused by the reflectance to the environment. The super water-wet behavior of the coating could in some degree protect the dust and dirt from shading the light and improve the self-cleaning of the glass so that the solar cell could maintain high efficiency.
| Products | Low Iron AR Coating Tempered Solar Glass for Solar Panel |
| Thickness | 3.2mm,4.0mm |
| Size | Can be customized,maximum size:1200*2200mm |
| Solar transmittance | 3.2mm>93.6%,with AR coating |
| Applications | For the solar thermal collectors |
| Item Tested | Test Description | Standard Applied | Result |
| Ageing Resistance | Checking module output efficiency with temperature 85ºC and humidity 85% in 1000 hour | IEC61215 | Pass |
| Acid Resistance | Immerse 10% H2SO4 for 48 hours | GBT18915[1].2-2002 | Strong anti-acid rain |
| Salt Spray Resistance (Neutral) | Saturation Immerse 5% NaCl for 96 hours (PH=6.5-7.2) | GB2423.17-81 | pass |
| UV Radiation | UV-irradiation test | IEC61215 | Pass |
| Pencil Hardness | To test the coating hardness with the different hardness of pencils | GB/T6739 | Anti-abrasion |
| Adhesion | To test the coating substance with adhesive tap | ASTM D 3359 | Strong adhesion |
Migo glass uses an etching technique to process the AR coating, and it is the only company in China to use this kind of technique. The common technique for AR coating is rolling.
1. More transmittance increase.
Etching can improve the light transmittance by 6% or above, but rolling normally contributes a 2% increase for that. The light transmittance of etched glass can reach 99.2% however the best performance of rolled glass is no better than 95%. It is because rolling can only make the AR layer for one side, and etching can do it for both sides.
2. Stability and durability.
The layer of rolled glass is chemically added and stuck onto the surface of the glass, easy to peel off. The layer of etched glass is the glass itself, much more stable.
3. Thinner layer. The AR layer of etching is thinner(<100nm) than rolling (around 200nm)