Abstract:

To enhance the light absorption, charge collection effectivety and improve device efficency, we fabricated the inverted polymer solar cells using MoO₃/Ag NPs/M
oO₃ as composite anode buffer layer to study the effect of metal nanoparticles on device performance. Experimental results show that the short circuit current
 density and the power conversion efficiency are improved by introducing 1 nm of Ag in MoO₃ buffer layer. The short circuit current density increas from 9.54 mA/cm² to 12.83 mA/cm², and the power conversion efficiency varies from 2.14% to 3.23%. Surface plasmon resonance effect of Ag nanoparticles effectively enhances the light absorption, charge collection and results in improving the overall device efficiency.

Key words: nanoparticle, surface plasmons, solar cells, buffer layer