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.
Skip Nav Destination
Article navigation
27 October 2003
Research Article|
October 27 2003
Voltage-controlled spectral tuning of photoelectric signals in a conducting polymer-bacteriorhodopsin device
A. G. Manoj;
A. G. Manoj
Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center for Advanced Scientific Research, Bangalore, India 560064
Search for other works by this author on:
K. S. Narayan
K. S. Narayan
Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center for Advanced Scientific Research, Bangalore, India 560064
Search for other works by this author on:
Appl. Phys. Lett. 83, 3614–3616 (2003)
Article history
Received:
February 19 2003
Accepted:
September 04 2003
Citation
A. G. Manoj, K. S. Narayan; Voltage-controlled spectral tuning of photoelectric signals in a conducting polymer-bacteriorhodopsin device. Appl. Phys. Lett. 27 October 2003; 83 (17): 3614–3616. https://doi.org/10.1063/1.1623007
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Roadmap on photonic metasurfaces
Sebastian A. Schulz, Rupert. F. Oulton, et al.
Color astrophotography with a 100 mm-diameter f/2 polymer flat lens
Apratim Majumder, Monjurul Meem, et al.
Activation imaging of gold nanoparticles for versatile drug visualization: An in vivo demonstration
N. Koshikawa, Y. Kikuchi, et al.
Related Content
Time-dependent all-optical logic gates based on two coupled waves in bacteriorhodopsin film
J. Appl. Phys. (August 2005)