Fig. 4: Absorption decay of PM6:BTP-eC9 active layer system under different aging conditions. | Nature Communications

Fig. 4: Absorption decay of PM6:BTP-eC9 active layer system under different aging conditions.

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Fig. 4

The active layer coated on glass, ZnO and BHT@ZnO under UV illumination (365 nm, 6 W) in a–c N2 (O2 content <10 ppm, H2O content <10 ppm); d–f Dry air (O2 content ≈ 19%, relative humidity ≈ 1%); g–i Ambient (O2 content ≈ 19%, relative humidity ≈ 60–70%); j–l Summary of the absorption peak intensity for PM6 and BTP-eC9. Source data are provided as a Source Data file.

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