TiN/SiO2 core-shell refractory plasmonic nanostructures unlock unprecedented 26.7% power conversion efficiency in Pb-free perovskite solar cells

Author's Department

Energy Materials Laboratory

Fourth Author's Department

Energy Materials Laboratory

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https://doi.org/10.1039/d5na00210a

All Authors

Ahmed A. Mohsen Mohamed Zahran S. E.D. Habib Nageh K. Allam

Document Type

Research Article

Publication Title

Nanoscale Advances

Publication Date

5-8-2025

doi

10.1039/d5na00210a

Abstract

TiN/SiO2 core-shell refractory plasmonic nanoparticles have been utilized as highly efficient nanoantennas to enhance the performance of lead-free perovskite solar cells (PSCs). The SiO2 shell, selected for its high refractive index and low extinction coefficient, enables precise light control while minimizing optical losses. A 3D finite element method (FEM)-based optoelectronic model was developed to analyze the optical and electrical characteristics of both unmodified and TiN/SiO2-integrated PSCs. The results demonstrate a strong correlation between power conversion efficiency (PCE) and nanoparticle size. Incorporating 90 nm nanoparticles increases the PCE from 12.9% to 17.3%, while 115 nm nanoparticles achieve an impressive 26.7%, marking a 97.3% improvement. These findings highlight the pivotal role of tailored plasmonic nanostructures in maximizing light absorption and energy conversion. This study advances the understanding of plasmonic nanomaterials in photovoltaics and offers a viable strategy for enhancing the efficiency of lead-free PSCs. The integration of TiN/SiO2 nanoparticles presents a promising pathway for developing high-performance, sustainable solar technologies.

First Page

3859

Last Page

3866

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