Journal
BIOMACROMOLECULES
Volume 15, Issue 8, Pages 2833-2838Publisher
AMER CHEMICAL SOC
DOI: 10.1021/bm500585s
Keywords
-
Funding
- Higher Education Commission (HEC) of Pakistan
- Dutch science foundation NWO
Ask authors/readers for more resources
Photosynthetic compounds have been a paradigm for biosolar cells and biosensors and for application in photovoltaic and photocatatytic devices. However, the inter-connection of proteins and protein complexes with electrodes, in terms of electronic contact, structure, alignment and orientation, remains a challenge. Here we report on a deposition method that relies on the self-organizing properties of these biological protein complexes to produce a densely packed monolayer by using Langmuir-Blodgett technology. The monolayer is deposited onto a gold electrode with defined orientation and produces the highest light-induced photocurrents per protein complex to date, 45 mu A/cm(2) (with illumination power of 23 mW/cm(2) at 880 nm), under ambient conditions. Our work shows for the first time that a significant portion of the intrinsic quantum efficiency of primary photosynthesis can be retained outside the biological cell, leading to an internal quantum efficiency (absorbed photon to electron injected into the electrode) of the metal electrode protein complex system of 32%.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available