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(Color online) (a) Schematic of the device structure of polymer solar cell fabricated in this study and (b) the molecular structures of active materials in polymer solar cell—RR-P3HT and PCBM.
The effect of interfacial layers on the performance of conventional polymer solar cells. The interfacial layers at ITO/blend and blend/Al interfaces are (a) none, none (solid square); (b) PEDOT:PSS, none (open triangle); (c) PEDOT:PSS, (solid triangle); and (d) PEDOT:PSS, (open inverted triangle). The light intensity is .
(a) Current-voltage characteristics of inverted polymer solar cells. The interfacial layers at ITO/blend and blend/Al interfaces are (i) none, (solid square); (ii) (evaporated), (open circle); (iii) (solution process), (solid triangle); and (iv) LiF, (open inverted triangle). (b) Energy level diagrams for various materials in the inverted solar cells.
curves for transparent polymer solar cells illuminated from two transparent electrodes—ITO and Au.
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