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학술지 Bipolar Resistive Switching Characteristics of Poly(3,4-Ethylene-Dioxythiophene): Poly(Styrenesulfonate) Thin Film
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저자
정후영, 김종윤, 윤태현, 최성율
발행일
201001
출처
Current Applied Physics, v.10 no.1 SUPPL., pp.e46-e49
ISSN
1567-1739
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.cap.2009.12.011
협약과제
09IC1900, 개별물품 단위 응용을 위한 차세대 RFID 기술 개발, 채종석
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.
키워드
EDS, PEDOT:PSS, Resistive switching, TEM
KSP 제안 키워드
4-Ethylenedioxythiophene(EDOT), Bipolar resistive switching, Charge transport, Hysteretic behavior, I-V curves, Initialization Vector(IV), J-V, Redox reaction, Reversible resistive switching, Space charge limited conduction, Trap centers