Triple junction rigid modules
All Uni-Solar® products are based on a sophisticated multilayer amorphous silicon thin-film solar cell. This spectrum- splitting cell, shown schematically in the diagram, is constructed of three separate p-i-n type amorphous semiconductor solar sub-cells, each with a different spectral response characteristic. This allows the cell to convert the different visible and near infrared wavelengths of sunlight with optimal efficiency. The United Solar spectrum-splitting multijunction design now holds all the world‘s records for amorphous silicon solar cell efficiency, including the highest stable efficiency measured by the National Renewable Energy Laboratory (NREL) for a small-area amorphous silicon solar cell - 13 percent.
Characteristics
The amorphous silicon technology lends itself to a wide variety of applications, and numerous advantages. These advantages can be seen in all Uni-Solar® products:
- No Glass Construction
- Shadow Tolerant
- Vandal Resistant
- Virtually Unbreakable
- Durable
- Lightweight
- Flexible
- Superior high temperature performance
- More energy per rated watt
Manufactured in a unique continuous roll-to-roll deposition process. Each of the nine thin-film semiconductor layers that comprise the cell is sequentially deposited in separate, dynamically- isolated, plasma enhanced chemical vapour deposition (PECVD) chambers as the stainless steel substrate progresses through the machine. |