ИСТИНА

The goal of this work is to enhance the optical properties of transparent conducting polymer film PS05, based on diphenylphtalide, in Laminated Grid Solar Cell (LGCell) construction, and therefore to increase the blue spectral response of LGCells. Transparent conducting polymer film is used to attach current collecting grid of wire to silicon solar cell surface covered by antireflecting TCO layer. New polymer compositions were developed to form polymer films with higher transmission in the short wavelength region. The analysis of transmission spectra allowed choosing polymer compositions to be tested for silicon solar cell production. The measured resistivities of contact systems wire-polymer-TCO were not higher than 0.52 mOhm⋅сm2. To reveal the passivation properties of polymer films, irradiance -Voc curves were measured for the (n+pp+)Si and TCO/(n+pp+)Si samples before an after polymer films deposition with lamination step. The applying of polymer films on the surface of n+ emitters leads to slight Fill Factor and Voc raise. LGCells with three conducting polymer films compositions were made using IFO/(n+pp+)Cz-Si/Al structures. The optimization of optical and passivation properties of polymer film led to spectral response in-crease in short-wavelength region by more than 7% and increase of efficiency up to 16.9%, compared with 16.2% for SC with initial PS05 polymer.