화학공학소재연구정보센터
학회 한국재료학회
학술대회 2006년 가을 (11/03 ~ 11/03, 수원대학교)
권호 12권 2호
발표분야 반도체 재료
제목 Memory Operation Mechanism for Organic Nonvolatile Memory
초록 We developed organic nonvolatile memory fabricated with the device structure of Al/α-NPD/Al nano-crystals surrounded by Al2O3/α-NPD/Al. These devices show excellent nonvolatile memory behavior; i.e., Vth of 3V, Vp (program) of 5V, Ve (erase) of 8V, Ion (program)/Ioff (erase) of ~6x101, and erase/program cycles of 1x105. They presented seven different reversible current paths approving electron charge or discharge on Al nano-crystals. Thus, our device demonstrated multi-level nonvolatile memory behavior.
In our report, we proposed an organic nonvolatile memory fabricated with the device structure of Al/α-NPD/Al nano-crystals surrounded by Al2O3/α-NPD/Al. Particularly, Al nano-crystals were produced via Al layer evaporation with 1.0 Å/sec on α-NPD followed by O2 plasma oxidation. In addition, for our devices we examined nonvolatile memory characteristics and investigated the dependency of bi-stable switching characteristic on device operating temperature to delineate the current conduction mechanism by which they behave multi-level nonvolatile memory.


*This research was supported by Korea ministry of commerce, industry and energy for the 0.1 Terabit Non-volatile Memory Development.
저자 남우식1, 박재근1, 서성호1, 김윤중2
소속 1한양대, 2한국기초과학지원(연)
키워드 Memory; bi-stable; organic; nonvolatile
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