| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Electrical Memory Characteristics of Polyimides Based on Conjugated Bis(triphenylamine) Derivatives: Effects of Electron Donor and Acceptor Substituents |
| 초록 |
Three functional polyimides (PIs) bearing conjugated bis(triphenylamine) (2TPA) derivatives with electron-donating and accepting groups were synthesized with reasonably high molecular weights. The PIs exhibited high thermal and dimensional stabilities and furthermore produced nanoscale thin films via conventional solution coating process. The 2TPA-based PI, as well as the PI bearing 2TPA with electron-donating methoxy substituents showed unipolar WORM memory behavior, whereas the 2TPA-based PI containing electron-accepting cyano groups exhibited unipolar DRAM behavior. All of the memory behaviors were found to be governed by a mechanism involving trap-limited space-charge limited conduction and local filament formation. Overall, this study demonstrated that the PIs are highly suitable for the low-cost mass production of high performance, polarity-free digital memory devices that can be operated with very low power consumption. |
| 저자 |
김용진1, 김경태1, Hung-Ju Yen2, 고용기1, Cha-Wen Chang2, 권원상1, Guey-Sheng Liou2, 이문호1
|
| 소속 |
1포항공과대, 2National Taiwan Univ. |
| 키워드 |
memory; polyimide
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| E-Mail |
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