Photoconduction in bacteriorhodopsin/GaAs heterostructures

Jian Xu, P. Bhattacharya, D. L. Marcy, J. A. Stuart, R. R. Birge

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Observation of transient and steady-state photoconduction across an indium tin oxide (ITO)/bacteriorhodopsin(bR)/GaAs heterostructure, with the bacteriorhodopsin acting as the light-sensitive material, is reported. The protein is dissolved in polyvinyl alcohol and the film dried after deposition. The steady state photoconduction is probably caused by the pH change at the bR/ITO interface owing to proton release from the bR upon photoexcitation, and is therefore an electrochemical effect.

Original languageEnglish (US)
Pages (from-to)648-649
Number of pages2
JournalElectronics Letters
Volume37
Issue number10
DOIs
StatePublished - May 10 2001

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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