ArticleJournal of materials chemistry. A2026
High-throughput thickness gradient screening reveals thickness and light-intensity dependent efficiency in indoor organic photovoltaics.
Article in Journal of materials chemistry. A, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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9 authors.
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Abstract
Indoor organic photovoltaics (OPVs) are promising power sources for Internet-of-Things devices, but optimizing performance under diverse indoor lighting is challenging because the optimal thickness of the active layer depends on the competition between charge transport and recombination, as well as on the incident light spectrum in a complex manner. Here, we use a high-throughput customized blade-coating system to generate continuous active-layer thickness gradients (50-450 nm) for five binary blends comprising three wide-bandgap donors (PTQ10, PM6, D18) and three non-fullerene acceptors (o-IDFBR, eh-IDTBR, FCC-Cl). Devices were characterized under four LED spectra (2700 K, 5200 K, 6500 K, B4) using a spectrum-on-demand source. Across 600 devices, intermediate thicknesses maximize shunt resistance (
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