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SEM images of composite films. (a) MCNT/PEDOT:PSS and (b) MCNT/PSSA. The chemical structures of PEDOT:PSS and PSSA are shown in the right of SEM images.
Current-voltage curve of DSSCs with (a) a MWCNT/PSSA composite film of in thickness, (b) a MWCNT/PEDOT:PSS composite film of in thickness, and (c) Pt as the counterelectrodes.
Impedance spectra of DSCs with different materials as the counterelectrode at . The and values for the DSC using Pt counterelectrode are magnified by . The ac amplitude is , and the device area is .
Photovoltaic performance of DSSCs with different counterelectrodes.
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