Photon Management Enables High Performance Perovskite Solar Cells For BIPV Application
MONIKA RAI a
a UHasselt—Hasselt University, Institute for Materials Research, (IMO-IMOMEC), Agoralaan 1, 3590 Diepenbeek, Belgium
Materials for Sustainable Development Conference (MATSUS)
Proceedings of MATSUS Fall 2023 Conference (MATSUSFall23)
#AppPV - Application Targets for Next Generation Photovoltaics
Torremolinos, Spain, 2023 October 16th - 20th
Organizers: Ardalan Armin and Marina Freitag
Invited Speaker, MONIKA RAI, presentation 188
DOI: https://doi.org/10.29363/nanoge.matsus.2023.188
Publication date: 18th July 2023

The staggering rise in perovskite solar cells (PSCs) efficiency in past years has led to multi-fold advancements. They are promising candidate for aesthetically appealing, electrically and optically efficient building integrated photovoltaics, BIPVs. However, the losses in power conversion efficiency are limited due to the spectral mismatch between the incident solar spectra and absorption range of the active perovskite layer. Besides PSCs’ performance, the photoinduced degradation/instability is also a major concern. This talk is about three cross-dependent aspects: band-gap engineering vs “thinning” for semi-transparent perovskite solar cells, transparent front contact and its effect on PCE and, photon management strategy by down-converting (DC) fluorophores to enhance carrier generation.

The discussion further points out the advantages of perovskites for diffuse light irradiance. It is important for indoor light applications where the incident power is already too low for power generation. The talk will also emphasize on the true challenge in the realization of DC effect. The flux and wavelength dependent PCE study shows the real promise of DC effect in PSCs. Further research is imperative for in-depth mechanistic understanding of the semi-transparent PSCs operations.

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