Fabrication of spray-printed organic non-volatile memory devices forlow cost electronic applications
- Fabrication of spray-printed organic non-volatile memory devices forlow cost electronic applications
- 차안나; 지용성; 이상아; 노용영; 나석인; 배수강; 이상현; 김태욱
- spray printing; memory
- Issue Date
- Materials science & engineering B, Solid-state materials for advanced technology
- VOL 191, 51-56
- 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.
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