By Topic

Voltage-controlled spectral tuning of photoelectric signals in a conducting polymer-bacteriorhodopsin device

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Manoj, A.G. ; Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center for Advanced Scientific Research, Bangalore, India 560064 ; Narayan, K.S.

Your organization might have access to this article on the publisher's site. To check, click on this link: 

Bacteriorhodopsin (bR), a protein existing in the halobacterial purple membrane serves as a light-driven pump which sets up an electrochemical gradient and transports protons across the cell membrane. In this report, we explore the synergetic processes at a conducting polymer/bR interface due to photoexcitation in presence of a voltage bias. The possibility of changing the oxidation state of the polymer electrochemically is coupled to the optically activated proton gradient in the bR side. This approach of controlling the nature of the conducting polymer-bR interface demonstrates a facile route to stabilize the deprotonated, long-lived intermediate state present in the bR photocycle. These processes result in interesting solid-state device properties such as incident-wavelength-controlled rectification of the photoinduced current and voltage-controlled spectral responses. © 2003 American Institute of Physics.

Published in:

Applied Physics Letters  (Volume:83 ,  Issue: 17 )