Multi‐Alternating Organic Semiconducting Films with High Electric Conductivity

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)5375-5379
Journal / PublicationAdvanced Functional Materials
Volume24
Issue number34
Online published23 Jun 2014
Publication statusPublished - 10 Sep 2014

Abstract

High electric conductivity is observed in multilayer stack of m-MTDATA/F16CuPc. Impedance data shows that the circuit resistance is significantly dropped by three orders of magnitude from ∼0.2 MΩ to ∼0.4 kΩ when the number of alternating units is increased from one to six, keeping a total thickness of 300 nm. Impedance results show that as the number of alternating units increases, the organic stack shows an increasing capacitance and a decreasing resistance. This result suggests the increasing charges accumulate at the heterojunctions, leading to reduction in overall film resistance. The application of the high conductive units in OLED device results in stability enhancement.

Research Area(s)

  • conductivity, electrical resistivity, impedance, organic semiconductors, semiconductor heterojunctions

Citation Format(s)

Multi‐Alternating Organic Semiconducting Films with High Electric Conductivity. / Mo, Hin-Wai; Lo, Ming-Fai; Yang, Qing-Dan; Ng, Tsz-Wai; Lee, Chun-Sing.

In: Advanced Functional Materials, Vol. 24, No. 34, 10.09.2014, p. 5375-5379.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal