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| Hauptseite > Publikationsdatenbank > Lead-Free Perovskite Cs 2 Ag x Na 1– x Bi y In 1– y Cl 6 Microcrystals for Scattering–Fluorescent Luminescent Solar Concentrators |
| Hauptseite > Publikationsdatenbank > Lead-Free Perovskite Cs 2 Ag x Na 1– x Bi y In 1– y Cl 6 Microcrystals for Scattering–Fluorescent Luminescent Solar Concentrators |
| Journal Article | FZJ-2025-00785 |
; ; ; ; ; ;
2025
Soc.
Washington, DC
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Please use a persistent id in citations: 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.
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