Nanosphere Templated Continuous PEDOT:PSS Films with Low Percolation Threshold for Application in Efficient Polymer Solar Cells

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Nanometer-sized monodisperse polystyrene nanospheres (PS NS) were designed as an opal template for the formation of three-dimensionally continuous poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films. The resultant films were successfully applied as the anode buffer layer (ABL) to produce highly efficient polymer solar cells (PSCs) with enhanced stability. The conductivity of the PS NS-PEDOT:PSS films was maintained up to phi(PS) = 0.75-0.80, indicating that the formation of continuous PEDOT:PSS films using PS NS templates was successful. To demonstrate the applicability of the PS NS-PEDOT:PSS film for organic electronics, the PS NS-PEDOT:PSS films were used as ABLs in two different PSCs: P3HT:PCBM and P3HT: OXCBA. The photovoltaic performances of both PSCs were maintained up to phi(PS) = 0.8. In particular, the power conversion efficiency of the P3HT:OXCBA PSC with a PS NS-PEDOT:PSS ABL (phi(PS) = 0.8) was greater than 5% and the air stability of the device was significantly enhanced.
Publisher
AMER CHEMICAL SOC
Issue Date
2012-09
Language
English
Article Type
Article
Keywords

INDIUM-TIN-OXIDE; CHARGE-TRANSPORT; PHOTOVOLTAIC CELLS; BLOCK-COPOLYMERS; INVERSE OPALS; BLENDS; NANOPARTICLES; PERFORMANCE; COLLOIDS; LAYERS

Citation

ACS NANO, v.6, no.9, pp.7902 - 7909

ISSN
1936-0851
DOI
10.1021/nn3022926
URI
http://hdl.handle.net/10203/102681
Appears in Collection
CBE-Journal Papers(저널논문)
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