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Research profile

René Janssen leads the interdepartmental research group Molecular Materials and Nanosystems at Eindhoven University of Technology, which is part of the departments Chemical Engineering and Chemistry as well as Applied Physics. The research objective of the group is to investigate and develop molecules, macromolecules and (nano)structured materials with tailored physical properties. The interest in these functional molecular materials and nanosystems is driven by the scientific challenge to understand the underlying mechanisms of the physical phenomena in systems of reduced dimensionality, down to the molecular level. Future applications are in organic and polymer solar cells, electrochemical cells, transistors and diodes.

Janssen has in particular obtained a thorough understanding of the subtle interactions of light and the chemical and electrical structures at the nanoscale. This has led to major improvements in the efficiency of polymer solar cells. The group now works on multi-junction molecular solar-to-electricity conversion devices, to further improve efficiencies. Another focus in Janssen's research is solar-to-fuel conversion using organic semiconductors in a process mimicking natural photosynthesis. To this aim new organic materials and electrocatalysts are being developed.

Academic background

René Janssen studied Chemistry and Chemical Engineering at Eindhoven University of Technology (TU/e, the Netherlands) where he received his MSc degree in 1983 cum laude. In 1987, he obtained his PhD at the same university with an experimental and theoretical study on organic radicals in single crystals. In 1991, he was appointed associate professor at TU/e in the field of physical organic chemistry. In 1993 and 1994, he was an associate researcher with the group of Professor Alan Heeger at the University of California Santa Barbara to work on the photophysical properties of conjugated polymers. In 2000, he was appointed full professor at TU/e in Physical Organic Chemistry at the department of Chemical Engineering & Chemistry. In 2003, he was also appointed Professor of Molecular Materials and Nanosystems at the department of Applied Physics. In 2011 Janssen was elected member of the Royal Netherlands Academy of Arts and Sciences (KNAW) and in 2013 he was appointed distinguished university professor at TU/e. Janssen received important grants and awards, among which the Pioneer grant from the Dutch science foundation NWO (1999), the René Descartes Prize from the European Commission (2000), a NWO TOP grant (2006), an ERC Advanced Grant (2013) and the NWO Spinoza Prize (2015). He is a member of the Institute for Complex Molecular Systems and one of the principal investigators of the long-term NWO Gravitation research program 'Functional Molecular Systems', which in 2012 was funded with 26,9 million euro.

Chair

Physical organic chemistry

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Research Output 1984 2019

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
File
Agglomeration
Molecules
Fullerenes
Excited states
Crystal orientation
2 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
File

Carboxylate-substituted polythiophenes for efficient fullerene-free polymer solar cells: the effect of chlorination on their properties

Wang, Q., Li, M., Zhang, X., Qin, Y., Wang, J., Zhang, J., Hou, J., Janssen, R. A. J. & Geng, Y., 25 Jun 2019, In : Macromolecules. 52, 12, p. 4464-4474 11 p.

Research output: Contribution to journalArticleAcademicpeer-review

Fullerenes
Chlorination
Chlorine
Polymers
Fluorine
Open Access
File
Fullerenes
Electron energy levels
fullerenes
fission
Charge transfer

Efficient thick-film polymer solar cells with enhanced fill factors via increased fullerene loading

Duan, C., Peng, Z., Colberts, F. J. M., Pang, S., Ye, L., Awartani, O. M., Hendriks, K. H., Ade, H., Wienk, M. M. & Janssen, R. A. J., 25 Feb 2019, In : ACS Applied Materials and Interfaces. 11, 11, p. 10794-11800 7 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Fullerenes
Thick films
Polymers
Polymer solar cells
Electron mobility

Prizes

Prof. dr. ir. Rene Janssen

Rene Janssen (Recipient), 2015

Recognition: NWOSpinozaScientific

Netherlands
science
organization
Society

Research Center for Functional Molecular Systems

Bert Meijer (Recipient), Jan van Hest (Recipient), Luc Brunsveld (Recipient), Rene Janssen (Recipient) & Rint Sijbesma (Recipient), 2013

Recognition: NWOGravitationScientific

Netherlands
selection procedure
Ministry of Education
funding
organization

Solar Energy Conversion in Molecular Multi-Junctions

Rene Janssen (Recipient), 2013

Recognition: ERCAdvancedScientific

Energy conversion
Solar energy
Electricity
Conversion efficiency
Electrocatalysis

University professor: Prof. dr. ir. R.A.J. (René) Janssen

Rene Janssen (Recipient), 2013

Recognition: TU/eUniversity professorScientific

learning

Courses

DBL Energy

1/09/14 → …

Course

Energy

1/09/13 → …

Course

Graduation Project MSMC

1/09/15 → …

Course

Press / Media

Marriage of two cheap photovoltaic technologies

Rene Janssen

16/02/16

1 item of media coverage

Press/Media: Expert Comment

René Janssen wins Spinoza Prize

Rene Janssen

12/06/15

1 item of media coverage

Press/Media: Expert Comment

DIFFER research institute moves to TU/e campus

Rene Janssen & Marco de Baar

19/05/15

1 item of media coverage

Press/Media: Expert Comment

Impacts

Organic flow batteries

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

Impact: Research Topic/Theme (at group level)

Organic solar cells

René A.J. Janssen (Researcher), Stefan C. J. Meskers (Researcher), Martijn M. Wienk (Researcher)

Impact: Research Topic/Theme (at group level)

Perovskite solar cells

René A.J. Janssen (Researcher), Stefan C. J. Meskers (Researcher), Martijn M. Wienk (Researcher)

Impact: Research Topic/Theme (at group level)

Photodetectors

Gerwin H. Gelinck (Researcher), René A.J. Janssen (Researcher), Stefan C. J. Meskers (Researcher)

Impact: Research Topic/Theme (at group level)

Solar fuels

René A.J. Janssen (Researcher), C.F.J. (Kees) Flipse (Researcher), Martijn M. Wienk (Researcher)

Impact: Research Topic/Theme (at group level)

Student theses

All-solution processed regular organic solar cells using a new inkjet-printable cathode

Author: van Franeker, J., 31 Aug 2012

Supervisor: Galagan, Y. (External person) (Supervisor 1) & Janssen, R. (Supervisor 2)

Student thesis: Master

File

Bio activation of PPV-films for impedance-based biosensing

Author: Thoelen, R., 31 Aug 2004

Supervisor: Janssen, R. (Supervisor 1), Cooreman, P. (External person) (External coach) & Wagner, P. (. (External person) (External coach)

Student thesis: Master

File

Characterisation of charge transport in polymer solar cells

Author: Plaisier, O., 31 Jan 2002

Supervisor: van Duren, J. (Supervisor 1) & Janssen, R. (Supervisor 2)

Student thesis: Master

Controlling the aggregation behaviour of diketopyrrolopyrrole polymers for photovoltaic applications

Author: Leenaers, P., 30 Nov 2016

Supervisor: Heintges, G. (Supervisor 1) & Janssen, R. (Supervisor 2)

Student thesis: Master

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

File