| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
유기전자소자용 소재 및 소자(분자전자소재 부문위원회) |
| 제목 |
Synthesis of thermally, dimensionally and chemically stable polyimides and its nonvolatile memory characteristics |
| 초록 |
A series of soluble poly(amic acid) precursors were prepared from a new carbzole-containing monomer, HAB-CBZ by polycondensation with four different aromatic dianhydrides: PMDA, BPDA, ODPA, and DSDA. From the precursors, nanoscale thin films of polyimides were prepared by spin-coating and subsequent thermal imidization. Devices fabricated with nanoscale thin PI films exhibited excellent unipolar write-once-readmany-times (WORM) memory behavior with a high ON/OFF current ratio of up to 1010. The active PI films were found to operate at 2.2-3.3 V. This study found that the imide rings as local charge trap sites are necessary to enhance the memory performance in addition to carbazole moiety. All the results collectively indicate that the thermally, dimensionally and chemically stable PIs of this study are a promising material for the mass production at low cost of high performance, programmable nonvolatile WORM memory devices. |
| 저자 |
고용기, 박삼대, 김경태, 김동민, 권원상, 김진철, 정정운, 노예철, 안병철, 김미희, 정성민, 권경호, 김영용, 이문호
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| 소속 |
포항공과대 |
| 키워드 |
Insoluble polyimide; Nanoscale thin film; Electrically nonvolatile memory
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| E-Mail |
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