Figure 3From: Inverted organic photovoltaic device with a new electron transport layerFitted transmittance spectrum, refractive index, and extinction coefficient of LZO layer. (a) Fitted transmittance spectrum of LZO with 2 wt.% of Li. (b) Refractive index. (c) Extinction coefficient of LZO layer with 2 wt.% of Li.Back to article page