Biomolecules and nanostructures
The Optical Sciences group studies the interaction of light and matter at the nanoscale.
We do this by exploring ways to shape light and its environment. It's what we call
active and passive control. Our current focus is on the interaction of light with
biomolecules and nanostructures. We are part of Twente
University's Department of Science and Technology and member of the
Probing the origin of fluorescence quenching of a graphene-porphyrin hybrid material(full pdf)
Divya Sharma, Xiaoyan Zhang, Ben L. Feringa, Wesley R. Browne, Jennifer L. Herek, and Annemarie Huijser
EPJ Web of Conferences
vol. 41 p. 04027 march 13, 2013
We report transient absorption spectroscopic studies on the hybrid material composed of porphyrin molecules covalently attached to graphene for investigating the mechanism underlying the reported fluorescence quenching of porphyrin in the hybrid . Excited state dynamics of pure graphene suspension and porphyrin have also been studied as reference samples. A fast excited state decay was observed in the hybrid.