Authors
Yuxuan Wang, Jiahe Jiang, Huifeng Yao
Published in
Chemical communications (Cambridge, England). Sep 25, 2026. Epub Sep 25, 2026.
Abstract
As emerging photovoltaics move from record efficiencies toward practical deployment, simultaneously improving power conversion efficiency and long-term stability has become a central challenge. UV spectral conversion has attracted growing interest as a photonic management strategy. In this review, we summarize recent progress in UV-to-visible luminescent down-shifting (LDS) materials for high-efficiency crystalline silicon, perovskite, and organic solar cells. We show that the primary role of LDS is to alleviate short-wavelength spectral mismatch and parasitic absorption while suppressing UV-induced degradation through spectral shifting. Accordingly, device performance depends not only on selective UV absorption, photoluminescence quantum yield, Stokes shift, reabsorption loss, and emission-external quantum efficiency matching, but also on long-term UV durability. Furthermore, we compare the advantages and limitations of rare-earth systems, quantum-dot systems, organic molecule/polymer systems, and multifunctional composites, and then examine the functions of external coatings, encapsulation-integrated layers, antireflection/light-trapping coupled structures, and buried-interface integration. Taken together, these advances suggest that future progress will rely on the development of integrable, manufacturable, and weather-resistant front-end photonic management layers that combine UV-to-visible conversion with antireflection, directional scattering, encapsulation barrier properties, and interface protection, thereby enabling concurrent improvements in both efficiency and stability.
PMID:
42788905
Bibliographic data and abstract were imported from PubMed on 25 Sep 2026.
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