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초록
Transmission electron microscopy images showed that the ZnO quantum dots (QDs) were conjugated with multi-walled carbon nanotubes (MWCNTs). Bistable memories utilizing an ensemble of the ZnO QD-MWCNT heterostructures were developed and the storage capability of the devices was significantly enhanced due to the conjugation of the ZnO QDs and the MWCNTs. Operating mechanisms of memory devices fabricated utilizing the ZnO QD-MWCNT heterostructures are described on the basis of the current-voltage results. The memory devices exhibited excellent environmental stability at ambient conditions.
키워드
Chemical sensors; Crystals; Data storage equipment; Multiwalled carbon nanotubes (MWCN); Optical waveguides; Semiconducting zinc compounds; Semiconductor quantum dots; Transmission electron microscopy; Zinc oxide; carbon nanotube; nanocomposite; nanomaterial; quantum dot; zinc oxide; nanomaterial; Ambient conditions; Bistable memories; Current voltages; Electrical bistabilities; Environmental stabilities; Heterostructures; Memory devices; Multi-walled carbon nanotubes; Operating mechanisms; Quantum dots; Storage capabilities; Transmission electron microscopy images; Zno; Zno quantum dots; article; electricity; nanofabrication; nanotechnology; priority journal; transmission electron microscopy; chemistry; conformation; crystallization; electrochemistry; equipment; equipment design; information retrieval; instrumentation; macromolecule; materials testing; methodology; nanotechnology; particle size; surface property; ultrastructure; Carbon nanotubes
- 제목
- Electrical bistabilities and operating mechanisms of memory devices fabricated utilizing ZnO quantum dot-multi-walled carbon nanotube nanocomposites
- 저자
- Li, Fushan; Son, Dong Ick; Cho, Sung Hwan; Kim, Tae Whan
- 발행일
- 2009-05
- 유형
- Article
- 저널명
- Nanotechnology
- 권
- 20
- 호
- 18
- 페이지
- 1 ~ 4