Lead-Free Perovskite Cs2AgxNa1-xBiyIn1-yCl6 Microcrystals for Scattering-Fluorescent Luminescent Solar Concentrators

Kong M, Osvet A, Forberich K, Barabash A, Erban C, Batentschuk M, Brabec C (2025)

Publication Type: Journal article

Publication year: 2025

Journal

ACS Applied Materials and Interfaces American Chemical Society

Book Volume: 17

Pages Range: 1644-1653

Journal Issue: 1

DOI: 10.1021/acsami.4c18315

Abstract

In recent years, luminescent solar concentrators (LSCs) have gained a renaissance as a pivotal transparent photovoltaic (PV) for building-integrated photovoltaics (BIPVs). However, most of the studies focused on light-selective LSCs, and less attention was paid to the utilization of the full solar spectrum. In this study, a lead-free microcrystal Cs2AgxNa1-xBiyIn1-yCl6 (CANBIC) perovskite phosphor is demonstrated to have bifunctional effects of luminescent down-shifting (LDS) and light scattering for the fabrication of LSCs, realizing light response from ultraviolet (UV) to NIR regions by an edge-mounted Si solar cell. The optimized CANBIC content (30 mg) in an LSC realizes the best optical efficiency (ηopt) of 5.40% and an average visible transmission (AVT) of >50%. This contributes to the improvement in short circuit current density (JSC) up to 1.232 mA/cm2 for the LSC-PV system (one-edge mounted Si solar cell) as a result of the best power conversion efficiencies (PCEs) of 0.463% and 1.852% for the LSC-PV and LSC-4PV systems (four-edge mounted Si solar cells), respectively. An Al foil is applied as a reflection background in the LSC-4PV system, and a champion PCE of 3.14% is realized due to an improved JSC of up to 7.94 mA/cm2 in total. Furthermore, the LSC maintains superior stability under exposure to continuous ultraviolet illumination or in ambient air.

Authors with CRIS profile

Mengqin Kong Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Andres Osvet Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Karen Forberich Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Anastasia Barabash Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Miroslaw Batentschuk Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET)

Involved external institutions

SUNOVATION Produktion GmbH DE Germany (DE)

How to cite

APA:

Kong, M., Osvet, A., Forberich, K., Barabash, A., Erban, C., Batentschuk, M., & Brabec, C. (2025). Lead-Free Perovskite Cs2AgxNa1-xBiyIn1-yCl6 Microcrystals for Scattering-Fluorescent Luminescent Solar Concentrators. ACS Applied Materials and Interfaces, 17(1), 1644-1653. https://doi.org/10.1021/acsami.4c18315

MLA:

Kong, Mengqin, et al. "Lead-Free Perovskite Cs2AgxNa1-xBiyIn1-yCl6 Microcrystals for Scattering-Fluorescent Luminescent Solar Concentrators." ACS Applied Materials and Interfaces 17.1 (2025): 1644-1653.

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