Characterization of the Organic Thin Film Solar Cells with Active Layers of PTB7/PC71BM Prepared by Using Solvent Mixtures with Different Additives
Figure 2
Schematics of the (a) energy band structure of the OTFSC with hole transfer layer of PEDOT:PSS and blended active layer of PTB7:PC71BM and (b) cross section view of OTFSC device.