title: Producing smart sensing films by means of organic field effect transistors.
abstract: We have fabricated the first example of totally flexible field effect device for chemical detection based on an organic field effect transistor (OFET) made by pentacene films grown on flexible plastic structures. The ion sensitivity is achieved by employing a thin Mylar foil as gate dielectric. A sensitivity of the device to the pH of the electrolyte solution has been observed A similar structure can be used also for detecting mechanical deformations on flexible surfaces. Thanks to the flexibility of the substrate and the low cost of the employed technology, these devices open the way for the production of flexible chemical and strain gauge sensors that can be employed in a variety of innovative applications such as wearable electronics, e-textiles, new man-machine interfaces.
authors.affiliation: Dept. of Electr. & Electron. Eng., CNISM-Univ., Cagliari, Italy.
authors.forename: Ileana
authors.initials: I
authors.lastname: Manunza
authors.forename: Emanuele
authors.initials: E
authors.lastname: Orgiu
authors.forename: Alessandra
authors.initials: A
authors.lastname: Caboni
authors.forename: Massimo
authors.initials: M
authors.lastname: Barbaro
authors.forename: Annalisa
authors.initials: A
authors.lastname: Bonfiglio
mesh_terms: D015374:Biosensing Techniques; D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods; D004573:Electrolytes; D004581:Electronics; D004867:Equipment Design; D006863:Hydrogen-Ion Concentration; D007477:Ions; D009279:Naphthacenes / Q000737:chemistry; D011312:Pressure; D012666:Semiconductors; D013314:Stress, Mechanical; D013784:Textiles; D013997:Time Factors; D014173:Transistors, Electronic
chemical_list: D004573:Electrolytes; D007477:Ions; D009279:Naphthacenes; C523499:pentacene