| he potential of thin (;The modeling results show that devices with 100% reflective back surfaces achieve their highest level of light trapping with random texturing. The use of such an optimized texturing structure on a 35;Modeling of device performance shows that high efficiency is achievable only with back surface passivation. Passivation of silicon surfaces has typically been done with dielectric materials such as SiO;Increased long wavelength absorption has been demonstrated with back surface textured devices. Thin wafers of (110) silicon have been texture etched to produce a structure close to the optimal predicted by modeling. Experiments show increased long wavelength absorption for the textured device, as compared to similar structures with polished surfaces. Samples of (100) silicon and polycrystalline silicon have been tested in a similar manner.;Solar cells have been fabricated on thin silicon structures with back surface texturing. Silicon films, 30... |
