Albinsson Research Group

In the Albinsson research group we are interested in photo-induced processes ranging from mechanistic studies of energy and electron transfer reactions with relevance for solar energy research to novel functionalized nanostructures based on DNA nanotechnology. We use advanced laser-based time-resolved spectroscopic techniques combined with traditional spectroscopy and theoretical (quantum mechanical) methods. In order to get access to complex molecular and/or bimolecular systems we have long-term collaborations with organic chemists both in-house (Jerker Mårtensson, Kasper Moth Poulsen) and internationally (Harry Anderson, Tom Brown, Atsuhiro Osuka).

Further information on ongoing research projects are found below. We are always looking for talented co-workers and if you have overlapping research interest don´t hesitate to contact us.


Main projects
Photon Up-Conversion
The process of low-intensity photon up-conversion relies on a phenomenon called sensitized Triplet-Triplet Annihilation (TTA) and uses a sensitizer- and an annihilator molecule. The sensitizers absorb the low-energy photons and the annihilators combine the energy of two low energy photons to one high-energy photon. The process is based on highly allowed one-photon absorption of the low-energy photons without demand on neither abnormally high photon fluxes nor coherence.

___________________________________________________________________________________________​ ​
Light Harvesting using DNA and Intercalating Dyes
This research project concerns the use of DNA as a scaffold material for harvesting sunlight. Light harvesting is predominantly known from green plants and some bacteria. In these biological systems proteins are used as a scaffold to hold many light absorbing dye molecules in very specific positions. After light is absorbed, this energy is transferred to a specific cluster of molecules, known as a reaction centre, and used to store energy. For our artificial systems we use dyes that bind to DNA as our light absorbers. These can then donate energy to a porphyrin molecule which acts as our reaction centre.

​__________________________________________________________________________________________ ​
A DNA origami Scaffold for Metal Nanoparticles: Engineering Energy Transfer Rates
In this project a DNA origami scaffold is used as a platform to place, with nanometer precision, organic fluorophores and metallic nanoparticles at predetermined positions. This platform will allow to understand how the presence of metallic nanoparticles may influence the FRET process of a given donor-acceptor pair. Different combinations of nanoparticle/fluorophore patterns could be made. In addition, by varying size and type of the nanoparticle, or the selected FRET pair, structural and energetic parameters could be varied, influencing the energy gap between the transferring excitation and the resonance energy of the nanoparticle. The combination of energy transfer (using FRET pair) and the plasmonic resonance (using metallic nanoparticles) together with DNA-nanotechnology (using DNA origami), will create novel structures with interesting properties such as fluorescence enhancement/quenching and potentially enhanced efficiency of the Förster resonance energy transfer.
___________________________________________________________________________________________​ ​
Project 4
Short info about the project and a link to the prpject page

Project 5
Short info about the project and a link to the prpject page

Former members

For similar information, see Swedish page.

Published: Mon 06 May 2013. Modified: Wed 10 Sep 2014