Ion-modulated electrical conduction in polyaniline-based field-effect transistors

Yu Chang Li, Yu Ju Lin, Hong Jian Yeh, Ten Chin Wen, Li Ming Huang, Ying Kuo Chen, Yeong Her Wang

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


The electrical characteristics of a field-effect transistor (FET) using bilayer water-soluble polymer electrolytes/conjugated polymer, that is, poly(ethyleneimine) (PEI)/polyaniline (PANI) doped with camphor sulfonic acid (CSA) structure, are discussed. The N H3+ cations from PEI were stuffed into the PANI-CSA to dedope nitrogen (imine) by applying gate voltage, and this results in the achievement of transistor behavior in drain current modulation. The PANI-CSA/PEI-based organic FETs working in depletion mode with a high field-effect mobility of ∼2.48 cm2 V s at atmosphere conditions are demonstrated.

Original languageEnglish
Article number093508
JournalApplied Physics Letters
Issue number9
Publication statusPublished - 2008

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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