Here, we report average reflectance reduction of ∼8% in wavelength range of 300–1100 nm after coupling surface plasmon resonances (SPRs) of silver nanoparticles (NPs) to textured silicon (T-Si) surface. The enhancement of photocurrent from T-Si solar cell in off-resonant SPR region observed due to better radiative efficiency of NPs leading to outflow of scattered far-field into silicon maximized power generating electrons.
Improvement in series resistance, fill factor, and open-circuit voltage (insensitive NPs size and morphology) are also observed with NPs along with photocurrent enhancement (sensitive to NPs sizes), which resulted cell efficiency enhancement from 4.49% to 6.42% for large area of 12.24 cm2.
Sardana, S.K., Chava, V.S., Thouti, E., Chander, N., Kumar, S., Reddy, S.R. and Komarala, V.K., 2014. Influence of surface plasmon resonances of silver nanoparticles on optical and electrical properties of textured silicon solar cell. Applied Physics Letters, 104(7), p.073903.
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