Bipolar resistive switching characteristics of poly3,4-ethylene-dioxythiophene: polystyrenesulfonate thin film - Condensed Matter > Materials ScienceReportar como inadecuado




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Abstract: We investigated the reversible resistive switching ofpoly3,4-ethylenedioxythiophene:polystyrenesulfonate PEDOT:PSS thin filmssandwiched between Al electrodes. The J-V sweep curve showed a hystereticbehavior which depends on the polarity of the applied voltage bias. From theanalysis of I-V curves, it was revealed that the charge transport through thejunction was governed by the bulk space-charge-limited conduction SCLC model.Using transmission electron microscopy TEM analysis, it was confirmed thatthe initial high resistance state of PEDOT:PSS films is related with thesegregation of PSS- chains induced by redox reaction between a Al metalelectrode and PEDOT:PSS film. Positive space charges present on the top regionof PEDOT:PSS films can be proposed as a possible trap centers of electrontrapping and detrapping process.



Autor: Hu Young Jeong, Jong Yun Kim, Tae Hyun Yoon, Sung-Yool Choi

Fuente: https://arxiv.org/



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