Abstract

A totally innovative electrolyte-gated field effect transistor, embedding a phospholipid filmat the interface between the organic semiconductor and the gating solution, is described.The electronic properties of OFETs including a phospholipid film are studied in both purewater and in an electrolyte solution and compared to those of an OFET with the organicsemiconductor directly in contact with the gating solution. In addition, to investigate therole of the lipid layers in the charge polarization process and quantify the field-effectmobility, impedance spectroscopy was employed. The results indicate that the integrationof the biological film minimizes the penetration of ions into the organic semiconductorthus leading to a capacitive operational mode as opposed to an electrochemical one. TheOFETs operate at low voltages with a field-effect mobility in the 103 cm2 V1 s1 rangeand an on/off current ratio of 103. This achievement opens perspectives to the developmentof FET biosensors potentially capable to operate in direct contact with physiological fluids.

Autore Pugliese

• Ambrico Marianna , Mallardi Antonia

Tutti gli autori

• S. Cotrone ; M. Ambrico ; H. Toss ; M.D. Angione ; M. Magliulo ;A. Mallardi ; M. Berggren ; G. Palazzo ; G. Horowitz ; T. Ligonzo ;L. Torsi

Titolo volume/Rivista

Organic electronics

Anno di pubblicazione

2012

ISSN

1566-1199

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile