상세정보
학술지
Bipolar Resistive Switching Characteristics of Poly(3,4-Ethylene-Dioxythiophene): Poly(Styrenesulfonate) Thin Film
- 발행일
- 201001
- 출처
- Current Applied Physics, v.10 no.1, pp.46-49
- ISSN
- 1567-1739
- 출판사
- Elsevier
- 협약과제
- 08IB2300, 고신뢰성 charge complex 소재 탐색, 최성율
- 초록
- We investigated the reversible resistive switching of poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) thin films sandwiched between Al electrodes. The J-V sweep curve showed a hysteretic behavior which depends on the polarity of the applied voltage bias. From the analysis of I-V curves, it was revealed that the charge transport through the junction was governed by the bulk space-charge-limited conduction (SCLC) model. Using transmission electron microscopy (TEM) analysis, it was confirmed that the initial high resistance state of PEDOT:PSS films is related with the segregation of PSS- chains induced by redox reaction between a Al metal electrode and PEDOT:PSS film. Positive space charges present on the top region of PEDOT:PSS films can be proposed as a possible trap centers of electron trapping and detrapping process. © 2009 Elsevier B.V. All rights reserved.
- KSP 제안 키워드
- 4-Ethylenedioxythiophene(EDOT), Bipolar resistive switching, Charge transport, Hysteretic behavior, I-V curves, J-V, Redox reaction, Reversible resistive switching, Space charge limited conduction, Trap centers, applied voltage