Green encapsulants boost stability and sustainability in inverted perovskite solar cells

W4414984740 · 수집 2026-10-04 18:16:49

T10660 Conducting polymers and applications

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Perovskite solar cells (PSCs) demonstrate potential for sustainable energy transitions, however their commercialization is impeded by lead toxicity and environmental leakage risks. Herein, it is an effective way to implant a cellulose material with multiple adsorption modes and sites, hydroxypropyl methylcellulose phthalate (HPMCP), which plays a covering role in perovskite crystal and achieves environmental friendliness through effectually suppressing lead leakage. Meanwhile, we have devised a series of multidimensional experimental scheme to assess the impact of lead leakage on the ecosystem from the perspective of cell survival rates and plant growth. HPMCP-modified PSC has a relatively low impact on plant growth and germination, exhibiting a germination rate of 92.3% compared to the blank group (without lead contamination). Moreover, the HPMCP-modified PSCs acquire optimal power conversion efficiency of 26.27% and manifest remarkable environmental stability. This work establishes an environmental and health risk assessment benchmark for PSCs, enabling sustainable deployment.

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