DEVENS GUST

Foundation Professor

  Office: ISTB5, Room 204  
  Phone: (480)965-4547  
  Fax: (480) 965-2747
  Email: gust@asu.edu

 Dr. DEVENS GUST's Lab or Group Website

Research and Teaching Interests

In the Gust group, we apply the techniques of synthetic and physical organic chemistry, photochemistry, laser spectroscopy and electrochemistry to mimicry of important aspects of photosynthetic energy conversion. Eventual applications of this work are in the areas of solar energy conversion, molecular (opto)electronics, renewable hydrogen production, and materials chemistry. Most of the research is highly interdisciplinary, and some of our projects involve collaborations with other faculty in Chemistry and Biochemistry, Bioengineering, Physics, Electrical Engineering, and Materials Engineering.

In our laboratories we synthesize organic molecules that absorb sunlight and use the resulting energy to carry out basic processes such as energy transfer, photoinduced electron transfer, and photoisomerization. Our design criteria are based on the principles of natural photosynthesis. The behavior of these molecules is studied using ultrafast laser spectroscopy, NMR, scanning probe microscopy, and other methods. Some of these photoactive compounds are incorporated into artificial biological “cells,” (liposomes) where they are used, along with enzymes and other chemicals, to convert light energy into biologically useful energy such as proton motive force and ATP. Other molecules are the light-absorbing components of experimental photoelectrochemical biofuel cells that generate either electricity or hydrogen gas. Still others have optoelectronic applications. We are preparing molecular photovoltaics, switches and logic gates that will help point the way to new methods of data processing, storage and transmission. The electronic properties of individual molecules are being studied on conducting surfaces using scanning probe techniques, and on insulating surfaces in field-effect transistors. We are also investigating photoactive molecules for their ability to change the properties of surfaces, leading to new methods for controlling water movement in microfluidic devices.

The accompanying list of selected publications can be consulted for more details. Graduate students interested in our research may also be interested in the IGERT graduate education program in Biomolecular Nanotechnology.

Publications

"Multiantenna Artificial Photosynthetic Reaction Center Complex," Terazono, Y.; Kodis, G.; Liddell, P. A.; Garg, V.; Moore, T. A.; Moore, A. L.; Gust, D. , J. Phys. Chem. B 113 7147-7155 (2009)

"Biology and technology for photochemical fuel production," Hambourger, M.; Moore, G. F.; Kramer, D. M.; Gust, D., Moore, A. L.; Moore, T. A. , Chem. Soc. Rev. 38 25-35 (2009)

"All-photonic molecular keypad lock," Andréasson, J.; Straight, S. D.; Moore, T. A.; Moore, A. L.; Gust, D., Chem. Eur. J. 15 3936 – 3939 (2009)

"Photoassisted overall water splitting in a visible light-absorbing dye sensitized photoelectrochemical cell," Youngblood, W. J.; Lee, S.-H. A.; Kobayashi, Y.; Hernandez-Pagan, E. A.; Hoertz, P. G.; Moore, T. A.; Moore, A. L.; Gust, D.; Mallouk T. E. , J. Am. Chem. Soc. 131 926-927 (2009)

"A Bioinspired construct that mimics the proton coupled electron transfer between P680+ and the tyrz-his190 pair of photosystem II," Moore,G. F.; Hambourger, M.; Gervaldo, M.; Poluektov, O. G.; Rajh, T.; Gust, D.; Moore T. A.; Moore, A. L., J. Am. Chem. Soc. 130 10466-10467 (2008 )