Nondispersive trap-limited electron transport in macroporous GaP

A. L. Roest, P. E. de Jongh, and D. Vanmaekelbergh
Phys. Rev. B 62, 16926 – Published 15 December 2000
PDFExport Citation

Abstract

Electron transport in macroporous GaP networks permeated with electrolyte solutions has been studied under steady-state conditions, by analysis of the photocurrent response upon a small-amplitude modulation of the light intensity. It is found that electron transport is nondispersive, characterized by a single transit time that depends on the thickness of the porous layer and the background light intensity. The transit time is determined by multiple trapping in interfacial states close to the electron Fermi level. The density-of-states function in a considerable region of the band gap can be determined from the transit time, when the energy of the electron Fermi level is changed by the background light intensity.

  • Received 24 July 2000

DOI:https://doi.org/10.1103/PhysRevB.62.16926

©2000 American Physical Society

Authors & Affiliations

A. L. Roest1, P. E. de Jongh2, and D. Vanmaekelbergh1

  • 1Debye Institute, University of Utrecht, P.O. Box 80000, 3508 TA Utrecht, The Netherlands
  • 2Philips Research, Prof. Holstlaan 4 (WA13) 5656 AA, Eindhoven, The Netherlands

References (Subscription Required)

Click to Expand
Issue

Vol. 62, Iss. 24 — 15 December 2000

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×