Li-, Zn- and Au-doped Fe 2O 3 thin films have been investigated as humidity sensing materials. Their electrical properties have been studied in the 0-100% relative humidity (RH) range by means of electrochemical impedance spectroscopy (EIS). This has allowed to drawn an equivalent circuit which well fit experimental data obtained from the doped films. The resistive and capacitive elements of the equivalent circuit have been also calculated by a modeling procedure. Results indicate that the humidity characteristics of the doped sensing films are correlated to the charge density and surface concentration of the dopants

Electrical characterization of Fe2O3 humidity sensors doped with Li+, Zn2+ and Au3+ ions

NERI, Giovanni;BONAVITA, ANNA;GALVAGNO, Signorino;DONATO, Nicola;CADDEMI, Alina
2005-01-01

Abstract

Li-, Zn- and Au-doped Fe 2O 3 thin films have been investigated as humidity sensing materials. Their electrical properties have been studied in the 0-100% relative humidity (RH) range by means of electrochemical impedance spectroscopy (EIS). This has allowed to drawn an equivalent circuit which well fit experimental data obtained from the doped films. The resistive and capacitive elements of the equivalent circuit have been also calculated by a modeling procedure. Results indicate that the humidity characteristics of the doped sensing films are correlated to the charge density and surface concentration of the dopants
2005
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11570/1889619
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 33
  • ???jsp.display-item.citation.isi??? 33
social impact