Aberrant effects on solar absorbance enhancement with the inclusion of dielectric coated plasmonic Cu-NP within hybrid organic-inorganic halide perovskite solar cell

Le résumé fourni par la source

Abstract In this paper we study the anomalous effects on solar absorbance with the insertion of dielectric coated plasmonic metal nanoparticle within hybrid organic-inorganic halide perovskite solar cell. It has been observed that the insertion of the metal@dielectric core-shell nanoparticles in the active layers of thin film organic solar cells enhance their conversion efficiency. The metal core increases the optical absorption, subsequently the conversion efficiency of thin film organic solar cells due to Localized surface plasmon resonance (LSPR) based field enhancement effect, the dielectric shell plays a key role to keep the metal core inaccessible so that it cannot offer recombination centre of the light-induced excitons. A comparative study conducted between the incorporated Au@SiO2, Ag@SiO2, and Cu@SiO2, to validate the utilisation of coreshell copper nanoparticles for designing Perovskite solar cells (PSCs) with enhanced light trapping ability. The simulation results based on finite difference time domain shows the absorbance enhancement depends on the refractive index and the depth of the dielectric coating. The dielectric layer with high refractive index demonstrates the steady change in enhancement than the low refractive index dielectric layer with the variation in the depth of the shell. These unusual effects expand our knowledge on plasmonic PSCs and thus open the doors for its optimised design with enhanced light trapping ability. On comparison with different available core metals it is being observed that the copper@dielectric offers better chemical and thermal stability with increased absorption. It further lowers down the production costs of these designs, enabling them to be utilized even within the underdeveloped countries.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.