Leif Hammarström leads research in the areas of Artificial Photosynthesis, Electron Transfer, Photochemistry and Ultrafast Laser Spectroscopy.

His main areas of research concern artificial photosynthesis, electron transfer and excited state dynamics. He is recognized as one of the world leaders in mechanistic studies of artificial photosynthesis, proton-coupled electron transfer and Ru(II)-polypyridine photosensitizers. His main techniques are time-resolved laser spectroscopy, fluorescence spectroscopy, photochemistry and electrochemistry. His group studies and develops molecular systems for direct solar fuel production by artificial photosynthesis, with focus on mechanistic insight of the processes involved.