How to reduce losses for polycrystalline solar panels

Reduce the energy and kinetic energy loss of low energy photons: Select optical semiconductor devices with low bandgap, such as typical crystalline silicon with a bandgap of 1.1 eV, which can only absorb photon energy with a wavelength of less than 1100 nm.

Reduce the energy and kinetic energy loss of high-energy photons: Select optical semiconductor devices with high bandgap. The first two comprehensive points are that selecting the composition of multi bandgap semiconductor devices can reasonably improve the utilization rate of different kinetic energy photon energy.

Reduce digestion and absorption efficiency and reflection surface loss: (1) Semiconductor devices with modified absorption coefficients can be applied as much as possible; (2) Reduce the total area of metal electrodes and replace a portion of metal electrodes with fully transparent conductive levels; (3) Improve the surface roughness level of raw materials and apply anti reflection layer raw materials to reduce the loss of reflection surface caused by surface reflection surface.

Reduce the loss of Fill factor: (1) Apply surface passivation treatment layer at the boundary of the surface or reverse electric level of the polycrystalline solar panel to reduce the hanging bond; (2) Apply high-purity (low residue) polycrystalline solar panel raw materials and good manufacturing and processing techniques to reduce the volume composite type inside the components; (3) Apply excellent electrical conductors as the electrical level and choose a good overall design to reduce the number of series resistors.