Dual Spectral Matching in Perovskite Solar Cells via Upconverting plus Downshifting Nanoparticles
Milliane P. S. Palácio, Luis P. M. dos Santos, Leonardo C. E. Barros, Nagyla Oliveira, Sergio F. N. Coelho, Edgar A. C. Coimbra, Daniel P. Camilo, F. Anderson S. Lima, Fernando E. Maturi, Ugur D. Menda, Fernando A. Sigoli, Wagner F. Silva, Carlos Jacinto, Paulo Andre
TL;DR
This paper explores using lanthanide-doped nanoparticles to improve perovskite solar cell efficiency by converting unusable light into usable wavelengths.
Contribution
The novel use of dual spectral matching via upconverting and downshifting nanoparticles in perovskite solar cells is introduced.
Findings
ERN nanoparticles increased power conversion efficiency by 22.19%.
TMN nanoparticles improved efficiency by 13.23%.
Downshifting emission and surface passivation reduced recombination losses.
Abstract
Maximizing solar cell efficiency is a critical step toward revolutionizing photovoltaic technologies and harnessing the full potential of light for energy conversion. This study investigates the incorporation of NaGdF4:Yb3+,Tm3+@NaGdF4:Eu3+ (TMN) and NaGdF4:Yb3+,Er3+@NaGdF4:Eu3+ (ERN) nanoparticles into perovskite solar cells (PSCs) to improve their power conversion efficiency. The nanoparticles were synthesized through thermolysis and characterized using multiple techniques, including photoluminescence spectroscopy, quantum yield measurements, transmission electron microscopy, X-ray diffraction, solar simulation, and external quantum efficiency assessments. These lanthanide-doped NPs exhibited strong downshifting and minor upconversion luminescence, acting like optical translators that reshape poorly absorbed light into usable wavelengths. Devices incorporating the ERN nanoparticles…
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Taxonomy
TopicsPerovskite Materials and Applications · Luminescence Properties of Advanced Materials · Organic Light-Emitting Diodes Research