Abstract
The photoelectronic nature of a dried photosystem I protein attached to a metal surface is studied using various spectroscopic techniques. The proteins are found to be optically active after the chemical adsorption. In addition, energy-resolved photoelectronic measurements indicate that the interaction of photosystem I with the metal surface leads to new molecule/substrate states, yielding energy states different from those of the individual components. Such interactions increase the spectral-response range beyond the absorption spectrum of photosystem I and are expected to improve the energy-conversion efficiency of devices based on this system.
Original language | English |
---|---|
Pages (from-to) | 12352-12353 |
Number of pages | 2 |
Journal | Journal of the American Chemical Society |
Volume | 129 |
Issue number | 41 |
DOIs | |
State | Published - 17 Oct 2007 |
Externally published | Yes |