• Het Kranenveld 14, Helix (STO 4.33)

    5612 MB Eindhoven


  • Bldg 25, Groene Loper 19, Spectrum

    5612 MB Eindhoven


  • P.O. Box 513 (STO 4.33), Helix

    5600 MB Eindhoven


Organization profile

Introduction / mission

The interdepartemental research group M2N investigates and develops functional molecular materials and nanosystems with tailored physical properties. Examples of applications are in organic and polymer solar cells, light-emitting diodes, electrochemical and photovoltaic cells, and solar fuels.

Highlighted phrase

From the molecule to the device

Organisational profile

The Molecular Materials and Nanosystems (M2N) group is active in both the department of Applied Physics and the department of Chemical Engineering and Chemistry. We combine expertise from these disciplines in a coherent research program on nanostructured materials and nano-sized organic and inorganic molecular systems. Our drive is to understand the underlying physical phenomena by studying systems of reduced dimensionality down to the molecular level. Our research regarding molecules, macromolecules and (nano)structured materials has led to notable achievements in a variety of applications.

Our thorough understanding of the subtle interactions of light with the chemical and electronic structures at the nanoscale has led to major improvements in the efficiency of polymer solar cells. Our study and modelling of organic light emitting devices (OLEDs) - from the fundamental opto-electronic processes at the molecular level towards the performance of a working device - are of industrial relevance. Other focus areas of our research are improving the efficiency of multi-junction molecular solar-to-electricity conversion devices, and establishing solar-to-fuel conversion using organic semiconductors in a process mimicking natural photosynthesis.

In our research we combine synthetic chemistry, advanced optical spectroscopy, and morphological characterization with fabricating, characterizing and modeling of prototype optoelectronic devices to obtain insights that are essential for future developments. In exploring new functional materials we work along the line molecule-material-device, with the idea that ultimately control on every length scale and every interface is required to reach the intrinsic limits of the special properties of functional molecular and polymer materials.

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output 1984 2019

Active-matrix IGZO array with printed thermistor for large-area thermal imaging

van der Steen, J. L. P. J., Peters, L. C. J. M., Smits, E. C. P., Zalar, P. & Gelinck, G. H., 1 Jul 2019, FLEPS 2019 - IEEE International Conference on Flexible and Printable Sensors and Systems, Proceedings. Piscataway: Institute of Electrical and Electronics Engineers, 3 p. 8792229

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Infrared imaging
form factors
2 Citations (Scopus)

Adjusting aggregation modes and photophysical and photovoltaic properties of diketopyrrolopyrrole-based small molecules by introducing B←N bonds

Pang, S., Más-Montoya, M., Xiao, M., Duan, C., Wang, Z., Liu, X., Janssen, R. A. J., Yu, G., Huang, F. & Cao, Y., 7 Jan 2019, In : Chemistry : A European Journal. 25, 2, p. 564-572 9 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
Excited states
Crystal orientation
5 Citations (Scopus)

Advances in solution-processed multijunction organic solar cells

Rasi, D. D. C. & Janssen, R. A. J., 8 Mar 2019, In : Advanced Materials. 31, 10, 27 p., 1806499

Research output: Contribution to journalReview articleAcademicpeer-review

Open Access


Molecular Materials and Nanosystems (M2N labs)

Rene Janssen (Manager)

Facility/equipment: Research lab


Energy storage
Flow batteries

Polymer monolayer electronics

Mengmeng Li (Recipient), 2018

Recognition: NWOVeniScientific

Electronic equipment
Semiconducting polymers
Charge transfer

Prof. dr. ir. Rene Janssen

Rene Janssen (Recipient), 2015

Recognition: NWOSpinozaScientific


Press / Media

UT opens center for brain-inspired electronics

Peter Bobbert & Bernard Geurts


1 item of media coverage

Press/Media: Expert Comment

Pentacene patterns prove crucial for solar power

Matthew Dyson


1 item of media coverage

Press/Media: Expert Comment

Research areas


C.F.J. (Kees) Flipse (Researcher)

Impact: Research Topic/Theme (at group level)


Reinder Coehoorn (Researcher), Peter Bobbert (Researcher)

Impact: Research Topic/Theme (at group level)

Organic flow batteries

Koen H. Hendriks (Researcher), René A.J. Janssen (Researcher)

Impact: Research Topic/Theme (at group level)

Student theses

Controlling the doping level in a conducting polymer for application in enhancement mode organic electrochemical transistors

Author: Pol, T., 13 Nov 2018

Supervisor: Meskers, S. (Supervisor 1), van de Burgt, Y. (Supervisor 2), Janssen, R. (Supervisor 2) & Friedrich, H. (Supervisor 2)

Student thesis: Master


Electrical characterization of organic bulk heterojunction for PV application

Author: Koers, P., Mar 2007

Supervisor: Janssen, R. (Supervisor 1) & Morana, M. (External person) (External coach)

Student thesis: Master

Measuring charge transfer states in organic bulk heterojunction solar cells

Author: Imhof, E., 13 Nov 2018

Supervisor: Willems, R. (Supervisor 1), Meskers, S. (Supervisor 2), Janssen, R. (Supervisor 2) & Debije, M. (Supervisor 2)

Student thesis: Master