APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter iResearch App Facebook

BROWSE VOLUMES

Year Range: 
Search Issue | RSS Feeds RSS
Previous Issue Next Issue

20 Jan 2003

Volume 82, Issue 3, pp. 313-483

Issue Cover Spotlight Figure

Appl. Phys. Lett. 82, 370 (2003); http://dx.doi.org/10.1063/1.1537514 (3 pages)

Jan Schroers, Chris Veazey, and William L. Johnson
Enlarge Image | Read More
Return to All Sections
back to top
RSS Feeds

Field-effect detection of chemical species with hybrid organic/inorganic transistors

C. Bartic, A. Campitelli, and S. Borghs

Appl. Phys. Lett. 82, 475 (2003); http://dx.doi.org/10.1063/1.1527698 (3 pages) | Cited 49 times

Online Publication Date: 15 January 2003

Full Text: Read Online (HTML) | Download PDF

Show Abstract
In this letter, we demonstrate that organic-based transistors are able to detect charged/uncharged chemical species in aqueous media via the field effect. The chemical sensitivity of the organic transistors is illustrated for protons and glucose. The electrochemical potential developed at the solution/dielectric interface depends on the proton concentration in solution and it modifies the current flowing in the transistor according to this concentration. Glucose can also be detected if an enzymatic layer is coupled to the dielectric surface. An inorganic proton-sensitive dielectric, Ta2O5, is used in the transistor structure in order to reduce the operational voltages. The field-effect detection of chemical species allows us to realize sensors for a variety of ions/molecules if layers with a specific functionality are added to the transistor. Organic-based sensing devices show great potential for low-cost, health-related, and environmental applications because of their very simple fabrication process, which leads to disposability. © 2003 American Institute of Physics.
Show PACS
07.07.Df Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing
82.80.Fk Electrochemical methods
85.30.Tv Field effect devices
85.65.+h Molecular electronic devices
87.80.-y Biophysical techniques (research methods)
82.35.Cd Conducting polymers
Return to All Sections
Close

Google Calendar

ADVERTISEMENT

Go to AIP Home   © AIP Publishing LLC
close