Photo-isomerization dynamics of isolated and surface-adsorbed stilbene molecule: comparative study

A clear understanding of dynamics of conjugated it-systems on the surface provides a fundamental theoretical basis for the design of photochromic materials, organic conduc- tors, and nano-switches centers. The present paper is focused on a detailed examination of the excited state dynamics of stilbene molecule, both isolated in the gas phase and physisorbed on an inert surface. By obtaining a fundamental understanding of the pro- cesses this molecule can undergo in both environments, we hope to gain insight into not only how desired isomerization channels in the case 7-systems might be enhanced and controlled, but also how a surface can influence a photoisomerization process.