Abstract
Novel organic dyes, JK-16 and JK-17 containing bis-dimethylfluorenyl amino benzo[ b]thiophene are designed and synthesized. Under standard global AM 1.5 solar condition, the JK-16 sensitized cell gave a short circuit photocurrent density ( J sc) of 15.33 mA cm −2, open circuit voltage ( V oc) of 0.74 V, and a fill factor of 0.66, corresponding to an overall conversion efficiency η of 7.43%, and the JK-17 sensitized cell gave a J sc of 12.66 mA cm −2, V oc of 0.67 V, and a fill factor of 0.65, corresponding to an overall conversion efficiency η of 5.49%.
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