한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)
- 한국전기전자재료학회 2004년도 하계학술대회 논문집 Vol.5 No.2
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- Pages.882-885
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- 2004
Amino-style 유도체를 이용한 분자 전자 소자의 전류-전압 특성에 관한 연구
Current-Voltage Characteristics of Molecular Electronic Devices Using a Amino-Style Derivatives
- Kim, So-Young (Dept. Molecular Electronic Eng., Hongik Univ.) ;
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Koo, Ja-Ryong
(Dept. Electrical, Information & Control Eng., Hongik Univ.) ;
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Kim, Young-Kwan
(Dept. Chemical Eng., Hongik Univ.)
- 발행 : 2004.07.05
초록
Organic molecules have many properties that make them attractive for electronic applications. We have been examining the progress of memory cell by using molecular-scale switch to give an example of the application using both nanoscale components and Si-technology. In this study, molecular electronic devices were fabricated with amion style derivatives as redox-active component to compare to the devices using Zn-Porphyrin derivatives. This molecule is amphiphilic to allow monolayer formation by the Langmuir-Blodgett (LB) method, and then this LB monolayer is inserted between two metal electrodes. According to current-voltage (I-V) characteristics, it was found that the devices show remarkable hysteresis behavior and can be used as memory devices at ambient conditions, when aluminum oxide layer was existed on bottom electrode. Diode-like characteristics were measured only, when Pt layer was existed as bottom electrode. It was also found that this metal layer interacts with the organic molecules and acts as a protecting layer, when thin Ti layer was inserted between the organic molecular layer and the top Al electrode. These electrical properties of the devices may be applicable to active components for the memory and/or logic gates in the future.