Molecular Solar Thermal Energy Storage and Conversion

Artists impression of MOST system installation @Chalmers/BOID

In a future society with limited access to fossil fuels, technologies for efficient on demand delivery of renewable energy are highly desirable. In this regard, methods that allow for solar energy storage and on demand solar driven power generation are particularly relevant since the sun is the most abundant energy source. Recently, some attention has been directed towards an organometallic fulvalene diruthenium compound which has shown great potential for energy storage capabilities and photo-conversion in solution The objective of the project is to improve and extend the concept of molecular solar thermal energy storage and conversion towards future applications.

Recent Publications in this area of research :

Victor Gray, Damir Dzebo, Maria Abrahamsson, Bo Albinsson and Kasper Moth-Poulsen "Triplet-Triplet Annihilation Photon-Upconversion: Towards Solar Energy Applications" Phys. Chem. Chem. Phys., 16 (22), 10345 - 10352, 2014.

Victor Gray, Anders Lennartson, Phasin Ratanalert, Karl Börjesson; Kasper Moth-
Poulsen"Diaryl-Substituted Norbornadienes with Red-Shifted Absorption for Molecular Solar Thermal Energy Storage" Chem. Commun. 2014, 50 (40), 5330 - 5332. (emerging investigator issue)

Karl Börjesson, Damir Dzebo, Bo Albinsson and Kasper Moth-Poulsen."Photon Upconversion Facilitated Molecular Solar Energy Storage" J. Mater. Chem. A 1, 8521-8524, 2013. (cover)

Karl Börjesson, Anders Lennartson and Kasper Moth-Poulsen. "Efficiency Limit of Molecular Solar Thermal Energy Storage Devices" ACS Sust. Chem. Eng. 2013.

Watch a video where I explain our solar thermal research:


Self-Assembled Single Molecule Electronics.

Single Molecule Electronics

The impressive degree of miniaturization of electronic components during the last 40 years has substantially improved the capabilities of computers and electronic devices and revolutionized the way we use electronics in our everyday life. The utmost degree of miniaturization of electronic components is the realization of single molecule electronic components. The limiting factor in fabrication of single molecule electronic devices is the electrode structure needed for contacting individual molecules, more specifically conducting leads separated by a few nanometers, long enough to be contacted by conventional methods. Since the nanogap between the electrodes is of the size of molecule, fabrication of these structures cannot be done by conventional lithography. New ideas are required to overcome the challenge of bridging the gap between the molecular length scale (1-2 nm) and the length scale accessible by top down lithographic techniques (20-30 nm). This project will focus on the development of new ways to contact single molecules based on a solution based self-assembly approach.

Recent publications in this area of research:

Moth-Poulsen, K. and Bjørnholm, T. “Single-molecule electron transfer in solid state three-terminal devices: Status and challenges for molecular electronics with single molecules” Nature Nanotech. 4, 551–556, 2009.

Melissa R. Dewi, Tina A. Gschneidtner, Sait Elmas, Michael Ranford, Kasper Moth-Poulsen, and Thomas Nann."Mono-Functionalization and Dimerization of Nanoparticles Using Coordination Chemistry" ACS Nano 9 (2), 1434–1439, 2015.

Jain, T., Lara-Avila, S., Kervennic, Y.-V., Moth-Poulsen, K., Nørgaard, K., Kubatkin, S., Bjørnholm, T. ”Aligned Growth of Gold Nanorods in PMMA Channels: Parallel Preparation of Nanogap Junctions” ACS Nano, 6 (5), 3861–3867, 2012.

Osorio, E. A., Moth-Poulsen, K., van der Zant, H.S.J., Paaske, J., Hedegård, P., Bendix, J., and Bjørnholm, T. “Electric-field manipulation of spin states in a single-metal atom molecular complex” Nano Letters 10, 105-110, 2010.

Selective Nano-Scale Functionalisation.

Selective functionalisation on the 30-100 nanometer length scale is today achieved using top-down lithographic techniques. Improved resolution and selectivity is highly desirable since it might lead to new opportunities in a broad range of applications ranging from single molecule electronics to sensors and nano medicine. This research project will focus on the development of chemistry that allow for selective, lithography free functionalisation of nanostructures with sub nanometer resolution. The work will take it’s offspring from organic synthesis, and will also include nanoparticle and nanorod synthesis, surface functionalisation and charactarisation.

Recent publications in this area of research:

Yuri A. Diaz Fernandez, Tina A. Gschneidtner, Carl Wadell, Louise H. Fornander, Samuel Lara Avila, Christoph Langhammer, Fredrik Westerlund, and Kasper Moth-Poulsen "The Conquest of Middle-Earth: combining top-down and bottom-up nanofabrication for constructing nanoparticle based devices" Nanoscale 6 (24), 14605 - 14616, 2014.

Lanlan Sun, Yuri A. Diaz-Fernandez, Tina A. Gschneidtner, Fredrik Westerlund, Samuel Lara-Avila and Kasper Moth-Poulsen "Single-molecule electronics: from chemical design to functional devices" Chemical Society Reviews 43 (21), 7378 - 7411, 2014.

Tina A. Gschneidtner, Yuri Diaz-Fernandez, Svetlana Syrenova, Fredrik Westerlund, Christoph Langhammer, Kasper Moth-Poulsen "A Versatile Self-Assembly Strategy for the Synthesis of Shape-Selected Colloidal Noble Metal Nanoparticle Heterodimers" Langmuir 30 (11), 3041-3050, 2014.



Watch a video from the EU-FP7 project SINGLE about our research on single molecule electronics:

Single Molecule Electronics MovieProject htt