Fabrication of spray-printed organic non-volatile memory devices forlow cost electronic applications

Title
Fabrication of spray-printed organic non-volatile memory devices forlow cost electronic applications
Authors
차안나지용성이상아노용영나석인배수강이상현김태욱
Keywords
spray printing; memory
Issue Date
2015-01
Publisher
Materials science & engineering B, Solid-state materials for advanced technology
Citation
VOL 191, 51-56
Abstract
tWe fabricated polystyrene (PS) and 6-phenyl-C61 butyric acid methyl ester (PCBM) based organic non-volatile memory devices using a spray printing technique. Due to the distinct operational propertiesof this technique, significant differences were observed in the macro- and microscopic features (e.g.,the film quality and surface roughness) of the devices. The thickness of the film was successfully con-trolled by adjusting the concentration of the PS:PCBM solutions sprayed. Although the roughness of thespray-printed films was poorer than that of the spin-coated film, negligible differences were observedin the basic memory characteristics (e.g., the operation voltage range, turn on and off voltage, retentionand endurance). In particular, the printing-based organic memory devices were successfully switched,as exhibited by the on/off ratio greater than two orders of magnitude at 0.3 V read voltage. The resis-tance state of all of the devices was maintained for more than 104s, indicating their non-volatilecharacteristics.
URI
http://pubs.kist.re.kr/handle/201004/49279
ISSN
09215107
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KIST Publication > Article
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