Solar cells are an increasingly important energy source for meeting growing energy demands. Organic photovoltaics in particular have potential in this area due to their low cost and the relative abundance of their constituents. One concern with the inverted configuration (a type of OPV with increased long-term stability) is their reliance on activation by ultraviolet (UV) light. Here we examine the incorporation of a new electron transport layer (ETL) material, zinc tin oxide (ZTO), in order to assess its interaction with UV light.
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