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Optical Condensed Matter Physics

The aim is to identify, understand, and control the nature of various physical phenomena and functionalities of condensed matter systems. We approach this problem using a variety of linear and non-linear optical techniques and by developing microscopic models to describe the observed phenomena.

 

Organization

The research group Optical Condensed Matter Physics is part of the Zernike Institute for Advanced Materials, a research institute within the Faculty of Science and Engineering of the  University of Groningen.


15-12-2020
Dr Bjorn Kriete was runner up (2nd price) on the Van Swinderen Award, for the best Cum Laude PhD thesis 2020, awarded by the Royal Physics Society of the Netherlands. He did win the "best dutch summary" award.

Bjorn Laser small

Latest publications

>> For a list of all publications, see here <<

December 2020

Excited state dynamics and exciton diffusion in triphenylamine/dicyanovinyl push–pull small molecule for organic optoelectronics
Raul et al
Scientific Reports

October 2020

Powering rotary molecular motors with low-intensity near-infrared light
Hoang et al
Science Advances

September 2020

Molecular versus excitonic disorder in individual artificial light-harvesting systems
Kriete et al.
Joural of the Americain Chemical Society

August 2020

Triphenylamine/Tetracyanobutadiene-based π-Conjugated Push-Pull Molecules End-capped with Arene Platforms: Synthesis, Photophysics, and Photovoltaic Response
B. Raul et al
Chemistry - A European Journal

April 2020

Microfluidic Out-of-Equilibrium Control of Molecular Nanotubes
B. Kriete et al
Physical Chemistry Chemical Physics

>> For all publications, see here <<

Excited state dynamics and exciton diffusion in triphenylamine/dicyanovinyl push–pull small molecule for organic optoelectronics

3-12-2020

Triphenylamine (TPA)/dicyanovinyl (DCV) based materials have recently attracted substantial research attention due to their unique optoelectronic properties, yet there are very few studies geared towards understanding their ultrafast photo-induced processes in solution and the corresponding correlation to the solid-state. In this paper, we investigate the mechanisms governing the excited state dynamics in TPA-T-DCV-Ph-F push-pull molecule. We show that the surprisingly short lifetime in solution (40 ps in toluene) does not prevent long exciton diffusion length in film (~16 nm), which grants applications of TPA-T-DCV-Ph-F and similar push-pull molecules in organic optoelectronic devices. 

This work was published in Scientific Reports 10, 21198 (2020)

28-10-2020

Infrared light antenna powers molecular motor

In 1999, Ben Feringa, Professor of Organic Chemistry at the University of Groningen, created the first light-driven molecular motor. These tiny motors could be used in all kinds of nanotechnology applications, for example in the delivery of drugs. However, they are powered by ultraviolet light, which can be harmful. Scientists have been looking for ways to use near-infrared light instead, but all attempts so far have been unsuccessful. Researchers from the University of Groningen now designed an antenna that absorbs energy from near-infrared light. This antenna was attached to the motor molecule, where it transmits the energy directly to the axle that drives motor movement. The result is a motor molecule that is powered by near-infrared light, which brings medical applications one step closer.

This work was published in Science Advances 28 October 2020

Some popular articles on this work :
Science LinX of the University of Groningen
Chemical & Engineering News
Cosmos Magazine

 

University of Groningen
Faculty of Science and Enginering
Zernike Institute for Advanced Physics

SEPOMO

Our group participates in the SEPOMO network
Supported and co-funded by the European Commission through the Horizon 2020 Marie Sklodowska-Curie ITN Programme, the SEPOMO network focusses on research on efficient photovoltaic devices.

Calendar

2020
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News

November 2020
OCMP welcomes Sundar Raj Krishnaswamy, who will spend 4 years here as PhD student, studying “Self-assembly pathways of an artificial light harvesting complex”

August 2020
PhD position (perovskites) open

May 2020
Björn Kriete succesfully defended his PhD thesis, entitled "Exciton Dynamics in Self-Assembled Molecular Nanotubes". 
The degree was awarded with the distinction : Cum Laude

May 2020
Carolien Feenstra successfully completed her master research project entitled “Self-Assembly of Light-Harvesting Nanotubes”. Parts of her findings were published in PCCP. 
Congratulations and well done!