MULTIJUNCTION CELLS
1. Single junction cells rely on photons whose energy is equal to or greater than the band gap.
2. Multijunction cells consist of at least 3 cells and at the most 10
3. Placing several cells together allows the collectors to catch a wider width of the band gap, because they convert more of the energy spectrum’s light into electricity.
3. Typical Multijunction cell works by stacking them one on top of the other. the top cell contain the largest band gap and the highest energy photons are absorbed. Photons not absorbed in the first cell continue on to the second cell, which absorbs the higher-energy portion of the remaining radiation.