Inkjet-printing of non-volatile organic resistive devices and crossbar array structures

Stefan Sax; Sebastian Nau; Karl Popovic; Alexander Bluemel; Andreas Klug; Emil J. W. List-Kratochvil

doi:10.1117/12.2187014

17 September 2015 Inkjet-printing of non-volatile organic resistive devices and crossbar array structures

Stefan Sax, Sebastian Nau, Karl Popovic, Alexander Bluemel, Andreas Klug, Emil J. W. List-Kratochvil

Proceedings Volume 9569, Printed Memory and Circuits; 95690M (2015) https://doi.org/10.1117/12.2187014
Event: SPIE Organic Photonics + Electronics, 2015, San Diego, California, United States

Abstract

Due to the increasing demand for storage capacity in various electronic gadgets like mobile phones or tablets, new types of non-volatile memory devices have gained a lot of attention over the last few years. Especially multilevel conductance switching elements based on organic semiconductors are of great interest due to their relatively simple device architecture and their small feature size.

Since organic semiconductors combine the electronic properties of inorganic materials with the mechanical characteristics of polymers, this class of materials is suitable for solution based large area device preparation techniques. Consequently, inkjet based deposition techniques are highly capable of facing preparation related challenges. By gradually replacing the evaporated electrodes with inkjet printed silver, the preparation related influence onto device performance parameters such as the ON/OFF ratio was investigated with IV measurements and high resolution transmission electron microscopy. Due to the electrode surface roughness the solvent load during the printing of the top electrode as well as organic layer inhomogeneity’s the utilization in array applications is hampered. As a prototypical example a 1diode-1resistor element and a 2×2 subarray from 5×5 array matrix were fully characterized demonstrating the versatility of inkjet printing for device preparation.

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Stefan Sax, Sebastian Nau, Karl Popovic, Alexander Bluemel, Andreas Klug, and Emil J. W. List-Kratochvil "Inkjet-printing of non-volatile organic resistive devices and crossbar array structures", Proc. SPIE 9569, Printed Memory and Circuits, 95690M (17 September 2015); https://doi.org/10.1117/12.2187014

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KEYWORDS

Electrodes

Printing

Diodes

Inkjet technology

Polymers

Silver

Chemical elements

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