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 OJOPM  Vol.3 No.2 , April 2013
Polyfluorene-Polytriarylamine Block Copolymer as an Additive for Electroluminescent Devices Based on Polymer Blends
Abstract: Electroluminescent characteristics were investigated for the blue emitting devices fabricated with the blend systems consisting of hole transporting polytriarylamine (PTAA), electron transporting polyfluorene (PF), and a block copolymer with both segments (PF-b-PTAA) as an active layer in order to elucidate the relationship between the chemical nature and morphology of the active layer, and EL performance. The addition of PF-b-PTAA to PF homopolymer afforded the hole injecting and/or electron blocking ability to increase the efficiency. The addition to PF/PTAA blend keeping the chemical composition constant also improved the performance by controlling the morphology and/or the domain size in phase-separated films.
Cite this paper: M. Jahanfar, Y. Tan, K. Tsuchiya, T. Shimomura and K. Ogino, "Polyfluorene-Polytriarylamine Block Copolymer as an Additive for Electroluminescent Devices Based on Polymer Blends," Open Journal of Organic Polymer Materials, Vol. 3 No. 2, 2013, pp. 41-45. doi: 10.4236/ojopm.2013.32007.
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