All-solution processed transparent organic light emitting diodes. Issue 47 (13th November 2015)

• Record Type: Journal Article
• Authors: Zhang, Min; Höfle, Stefan; Czolk, Jens; Mertens, Adrian; Colsmann, Alexander
• Is Part Of: Nanoscale. Volume 7:Issue 47(2015)
• Page Start: 20009
• Page End: 20014
• Publication Date: 2015-11-13
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c5nr05820a
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : Transparent organic light emitting diodes with polymer electrodes and low onset voltages are fabricated all from solution. Abstract : In this work, we report on indium tin oxide-free, all-solution processed transparent organic light emitting diodes (OLEDs) with inverted device architecture. Conductive polymer layers are employed as both transparent cathodes and transparent anodes, with the top anodes having enhanced conductivities from a supporting stochastic silver nanowire mesh. Both electrodes exhibit transmittances of 80–90% in the visible spectral regime. Upon the incorporation of either yellow- or blue-light emitting fluorescent polymers, the OLEDs show low onset voltages, demonstrating excellent charge carrier injection from the polymer electrodes into the emission layers. Overall luminances and current efficiencies equal the performance of opaque reference OLEDs with indium tin oxide and aluminium electrodes, proving excellent charge carrier-to-light conversion within the device.