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Titolo:
INTERACTION OF PLANAR POLYMER SCHOTTKY-BARRIER DIODES WITH GASEOUS SUBSTANCES
Autore:
ASSADI A; SPETZ A; WILLANDER M; SVENSSON C; LUNDSTROM I; INGANAS O;
Indirizzi:
LINKOPING UNIV,DEPT PHYS & MEASUREMENT TECHNOL,APPL PHYS LAB S-58183 LINKOPING SWEDEN
Titolo Testata:
Sensors and actuators. B, Chemical
fascicolo: 1, volume: 20, anno: 1994,
pagine: 71 - 77
SICI:
0925-4005(1994)20:1<71:IOPPSD>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
FIELD-EFFECT MOBILITY; GAS SENSORS; POLY(3-HEXYLTHIOPHENE); ALUMINUM; FILMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
A. Assadi et al., "INTERACTION OF PLANAR POLYMER SCHOTTKY-BARRIER DIODES WITH GASEOUS SUBSTANCES", Sensors and actuators. B, Chemical, 20(1), 1994, pp. 71-77

Abstract

Conducting polymers appear very attractive as sensor materials eitheras the gas-sensitive component or as a matrix for easy immobilizationof a specific substrate. The planar Schottky barrier diode with poly(3-octylthiophene), P3OT, as the semiconductor is used as a sensor for the detection of different gas species. The shifts in the current-voltage (C-V) characteristics as well as the C-V characteristics of the diodes due to water and ethanol vapour, ammonia gas and nitric oxide gases are studied. Nitric oxide and ammonia give the largest and most specific changes of the C-V characteristics. Nitric oxide has a doping effect, which increases the reverse current, while ammonia is the only gas that causes a negative change in the forward bias current of the I-V curve. The planar configuration of the Schottky barrier diode facilitates the absorption of gaseous species in the environment, and provides a simple method for production of gas sensors.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/10/20 alle ore 00:57:58