학회 |
한국고분자학회 |
학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
권호 |
34권 2호 |
발표분야 |
기능성 고분자 |
제목 |
Programmable Digital Memory Characteristics of Nanoscale Thin Films of a Fully Conjugated Polymer. |
초록 |
This paper reports for the first time the programmable digital memory characteristics of the nanoscale thin films of a fully conjugated polymer, poly(diethyl dipropargylmalonate) (pDEDPM) in the absence of doping. This conjugated polymer was found to exhibit good solubility in organic solvents and to be easily processed to form nanoscale thin films through the use of conventional solution spin-, roll-, or dip-coating and subsequent drying. Films of the conjugated polymer with top and bottom metal electrodes exhibit excellent dynamic random access memory (DRAM) characteristics or write-once-read-many-times (WORM) memory behavior without polarity, depending on the film thickness. Films with a thickness of 30 nm were found to exhibit very stable WORM memory characteristics without polarity and an ON/OFF current ratio of 106, whereas films with a thickness of 62-120 nm were found to exhibit DRAM characteristics without polarity and an ON/OFF current ratio as high as 108. |
저자 |
박삼대, 이택준, 진상우, 김진철, 김동민, 정정운, 노예철, 안병철, 권원상, 김경태, 김미희, 고용기, 이문호
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소속 |
포항공과대 |
키워드 |
WORM; DRAM; conjugated polymer
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E-Mail |
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