Improved efficiency and lifetime in small molecule organic solar cells with optimized conductive polymer electrodes

We report on efficient and stable ITO-free small molecule organic solar cells with conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) electrodes using a post-treatment process, causing selective removal of PSS. The solar cells with post-treated PEDOT:PSS electrodes show s...

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Bibliografske podrobnosti
Main Authors: Hyun Kim, Y, Sachse, C, Hermenau, M, Fehse, K, Riede, M, Müller-Meskamp, L, Leo, K
Format: Journal article
Jezik:English
Izdano: American Institute of Physics 2011
Opis
Izvleček:We report on efficient and stable ITO-free small molecule organic solar cells with conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) electrodes using a post-treatment process, causing selective removal of PSS. The solar cells with post-treated PEDOT:PSS electrodes show significantly improved short circuit current densities and efficiencies compared to untreated devices. Moreover, the removal of PSS by the post-treatment significantly improves the lifetime of devices, which are more resistant to loss of fill factor compared to untreated devices. © 2011 American Institute of Physics.