Large Area Inkjet Printing for Organic Solar Cells and OLEDs using Non-Halogenated Ink Formulations
Abstract:Transferring lab-scale processes of organic electronics to large area roll-to-roll production requires the use of up-scalable deposition techniques. Furthermore, industrial production demands the omission of halogenated and other harmful solvents. Here we discuss the solution processing of organic light emitting diodes (OLEDs) or organic photovoltaics (OPV) applying halogen free ink formulations that are compatible with large area inkjet printings. We demonstrate the inkjet printing of the emissive layer in smOLED devices and the photo-active layer in OPV. In both cases homogeneous layer thicknesses were obtained, yielding a uniform light emission from the printed smOLEd device. While in the case of the smOLED device the luminous output was slightly lower than that of a spin coated device, the photoactive layer printed for an OPV from the halogen free ink showed similar performance as a layer spin coated from chlorinated solvents.
Document Type: Research Article
Publication date: January 1, 2013
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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