Fig. 6: Schematic diagram of the degradation behavior of active layers on ZnO and the working mechanism of BHT@ZnO in improving the stability of OPV. | Nature Communications

Fig. 6: Schematic diagram of the degradation behavior of active layers on ZnO and the working mechanism of BHT@ZnO in improving the stability of OPV.

From: 19.5% Inverted organic photovoltaic with record long-lifetime via multifunctional interface engineering featuring radical scavenger

Fig. 6

Left (red area): Four potential mechanisms of ROS generation in ZnO under light illumination, along with the degradation pathways of both the BDT-based donor and NFA small molecule acceptor catalyzed by ·O2− and ·OH, respectively. Right (blue area): Surface passivation of ZnO by BHT and its effects on reducing O2/H2O adsorption and scavenging ROS.

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