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|Title:||Aggregates-induced dynamic negative differential resistance in conducting organic films||Authors:||Xie, X.N.
|Issue Date:||2009||Citation:||Xie, X.N., Wang, J., Loh, K.P., Wee, A.T.S. (2009). Aggregates-induced dynamic negative differential resistance in conducting organic films. Applied Physics Letters 95 (20) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3266854||Abstract:||This letter reports the negative differential resistance (NDR) behavior of perylene-3,4,9,10-tetracarboxylic-3,4,9,10-dianhydride films induced by aggregate formation in the film. It is observed that aggregate-states in the energy gap can by-pass the common charge conduction mode, and electron injection, trapping, and conduction through these states lead to the NDR characteristic. The rate-dependence of NDR is discussed in terms of the transit time and lifetime of the aggregates-states electrons. The quenching of NDR by photoillumination is also observed, and is attributed to the saturation of aggregates-states by photoelectrons. © 2009 American Institute of Physics.||Source Title:||Applied Physics Letters||URI:||http://scholarbank.nus.edu.sg/handle/10635/75537||ISSN:||00036951||DOI:||10.1063/1.3266854|
|Appears in Collections:||Staff Publications|
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