The electrical conductivity of a-Si:H films was investigated in the temperature range 300K - 450K under an alternative electric field whose frequency was in the range 100 Hz - 6×106 Hz. Loss peaks were detected, located at a temperature dependent frequency and superimposed to a nearly linear dependence on frequency. Their amplitude has found to be sensitive to Staebler-Wronski Effect. The observed photodegradation-sensitive loss peaks have been described in terms of a Simple Pair Hopping (SPH) mechanism, involving the electronic states associated to dangling bonds, superimposed to a broadband process described by Correlated Barrier Hopping (CBH) model.

Loss Peaks in the AC Conductivity of a-Si:H / Schirone, Luigi; Guseinov, Y. a. Y. u.; DE CESARE, Giampiero; Ferrari, A.; Califano, F. P.. - STAMPA. - 258:(2011), pp. 801-806. (Intervento presentato al convegno MRS Spring Meeting; ; tenutosi a San Francisco, CA, USA; nel 13 -16 April 1993) [10.1557/PROC-258-801].

Loss Peaks in the AC Conductivity of a-Si:H

SCHIRONE, Luigi;DE CESARE, Giampiero;
2011

Abstract

The electrical conductivity of a-Si:H films was investigated in the temperature range 300K - 450K under an alternative electric field whose frequency was in the range 100 Hz - 6×106 Hz. Loss peaks were detected, located at a temperature dependent frequency and superimposed to a nearly linear dependence on frequency. Their amplitude has found to be sensitive to Staebler-Wronski Effect. The observed photodegradation-sensitive loss peaks have been described in terms of a Simple Pair Hopping (SPH) mechanism, involving the electronic states associated to dangling bonds, superimposed to a broadband process described by Correlated Barrier Hopping (CBH) model.
2011
MRS Spring Meeting; ;
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Loss Peaks in the AC Conductivity of a-Si:H / Schirone, Luigi; Guseinov, Y. a. Y. u.; DE CESARE, Giampiero; Ferrari, A.; Califano, F. P.. - STAMPA. - 258:(2011), pp. 801-806. (Intervento presentato al convegno MRS Spring Meeting; ; tenutosi a San Francisco, CA, USA; nel 13 -16 April 1993) [10.1557/PROC-258-801].
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

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/11573/790160
 Attenzione

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

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