Slot-Die Coating of Double Polymer Layers for the Fabrication of Organic Light Emitting Diodes
AbstractThis study presents the slot-die coating process of two layers of organic materials for the fabrication of organic light emitting diodes (OLEDs). Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), which is commonly used in OLEDs and in organic photovoltaic devices as the hole injection layer (HIL), has been deposited via slot-die coating. Uniform films of PEDOT:PSS were obtained after optimizing the slot-die processing parameters: substrate temperature, coating speed, and ink flow rate. The film quality was examined using optical microscopy, profilometry, and atomic force microscopy. Further, poly(9,9-dioctylfluorene) (F8) and poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT), a well know polymer blend F8:F8BT, which is used as an emissive layer in OLEDs, has been slot-die coated. The optoelectronic properties of the slot-die coated F8:F8BT films were examined by means of photoluminescence (PL) and electroluminescence (EL) studies. The fabricated OLEDs, consisting of slot-die coated PEDOT:PSS and F8:F8BT films, were characterized to record the brightness and current efficiency. View Full-Text
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C, A.; Colella, M.; Griffin, J.; Kingsley, J.; Scarratt, N.; Luszczynska, B.; Ulanski, J. Slot-Die Coating of Double Polymer Layers for the Fabrication of Organic Light Emitting Diodes. Micromachines 2019, 10, 53.
C A, Colella M, Griffin J, Kingsley J, Scarratt N, Luszczynska B, Ulanski J. Slot-Die Coating of Double Polymer Layers for the Fabrication of Organic Light Emitting Diodes. Micromachines. 2019; 10(1):53.Chicago/Turabian Style
C, Amruth; Colella, Marco; Griffin, Jonathan; Kingsley, James; Scarratt, Nicholas; Luszczynska, Beata; Ulanski, Jacek. 2019. "Slot-Die Coating of Double Polymer Layers for the Fabrication of Organic Light Emitting Diodes." Micromachines 10, no. 1: 53.
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