Electrical bistabilities and memory mechanisms of nonvolatile organic bistable devices based on exfoliated muscovite-type mica nanoparticle/poly(methylmethacrylate) nanocomposites
- Title
- Electrical bistabilities and memory mechanisms of nonvolatile organic bistable devices based on exfoliated muscovite-type mica nanoparticle/poly(methylmethacrylate) nanocomposites
- Author
- 김태환
- Keywords
- Exfoliated mica; Organic bistable device; Electrical characteristic; Memory mechanism
- Issue Date
- 2018-02
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- APPLIED SURFACE SCIENCE, v. 432, page. 228-232
- Abstract
- Organic bistable devices (OBDs) with exfoliated mica nanoparticles (NPs) embedded into an insulating poly(methylmethacrylate) (PMMA) layer were fabricated by using a spin-coating method. Current-voltage (I-V) curves for the Al/PMMA/exfoliated mica NP/PMMA/indium-tin-oxide/glass devices at 300 K showed a clockwise current hysteresis behavior due to the existence of the exfoliated muscovite-type mica NPs, which is an essential feature for bistable devices. Write-read-erase-read data showed that the OBDs had rewritable nonvolatile memories and an endurance number of ON/OFF switching for the OBDs of 10(2) cycles. An ON/OFF ratio of 1 x 10(3) was maintained for retention times larger than 1 x 10(4) s. The memory mechanisms of the fabricated OBDs were described by using the trapping and the tunneling processes within a PMMA active layer containing exfoliated muscovite-type mica NPs on the basis of the energy band diagram and the I-V curves.
- URI
- https://www.sciencedirect.com/science/article/pii/S016943321730925X?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/117341
- ISSN
- 0169-4332; 1873-5584
- DOI
- 10.1016/j.apsusc.2017.03.231; 10.1016/j.apsusc.2017.03.231
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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