Abstract
We present an electrical-bistability device based on MIM-sandwiched structure. Poly(N-vinylcarbazole) (PVK) mixed with gold nanoparticles (GNPs) serve as the active layer between two metal electrodes. After applying a voltage, the as-fabricated device can transit from low conductivity state to high conductivity state. By simply using a reverse bias, the high conductivity state can return to the low conductivity state. An on/off current ratio as high as 105 at room temperature has been achieved. The memory effect is attributed to electric-field-induced charge transfer complex formed between the PVK and the GNPs. The device shows a good stability under stress test for both states and exhibits a high potential on Flash-type memory applications.
Original language | English (US) |
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Pages (from-to) | 107-110 |
Number of pages | 4 |
Journal | IEEE Electron Device Letters |
Volume | 28 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2007 |
Externally published | Yes |
Keywords
- Electrical bistability
- Gold nanoparticle (GNP)
- Memory effect
- Poly(N-vinylcarbazole) (PVK)
- Thin-film device
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering