Читать книгу Fundamentals of Solar Cell Design - Rajender Boddula - Страница 40

They are considered as simple plasmonic solar cells. The crystalline or amorphous silicon and thin film solar cells can be developed using SPR of metal nanoparticles. The plasmonic nanostructure can act as light harvesting antennas to enhance optical path length of photon through scattering that resulting in enhanced absorption and generation of e-h pairs in semiconductors [50]. For example, deposition of Au, Ag, or Cu metal nanoparticle array in Si/SiO₂ device increases 20 times more photocurrent in plasmonic solar cell. The various solar cell technologies such as conventional silicon, GaAs, CIGS, CdTe, and CZTS have been demonstrated using plasmonic nanostructures with improved efficiency. By making stacks of thin film PV cell, the multi-wavelength light can be absorbed in plasmonic solar cells through enhanced scattering [51–53].