Stéphane MERY

Stéphane MERY

Researcher, Organic Materials (DMO)
Phone: +33(0)3 88 10 71 65, +33(0)3 88 10 71 45Office: 2044

Research background

  • 1990-1992. Post-doctoral fellowship at Naval Research Laboratory, Washington DC, USA
  • 1992. CNRS researcher appointment at IPCMS
  • 2001. Accreditation to supervise research (Habilitation à diriger des recherches, HdR)

Academic background

  • 1990. PhD in Chemistry and Physics from the University of Bordeaux, France, under the supervision of Pr. F. Hardouin and Dr. M. Mauzac

Current research activities

My activities focus on the design and synthesis of self-organized π-conjugated materials. The control of the organization is most often achieved by functionalizing the compounds with flexible chains (e.g. alkyl or siloxane chains) at particular positions. I am particularly interested in stabilizing (macro)molecular systems in various mesomorphic organizations for optoelectronic applications.

Further functionalization of molecules with siloxane flexible chains allows to develop πfunctional molecular liquids, i.e. compounds that are in a stable liquid state (without solvent) at room temperature. The targeted application is electroluminescent devices.

Area of expertise:

  • Self-organized organic systems (mesomorphic, liquid crystalline…)
  • π-Functional molecular liquids
  • Siloxane-containing organic materials
  • π-conjugated molecules and polymers for optoelectronic applications (semiconductors, organic photovoltaics, OLEDs..)

Link to the team “Functional Molecular Materials


  • F. Mouillard, T. Ferté, E. Voirin, S. Méry, P. Masson, A. Carradò. Use of a Photocleavable Initiator to Characterize Polymer Chains Grafted onto a Metal Plate with the Grafting-from Method. Polymers 2023, 15, 1265-1280.
  • J. Shaya, J.-C. Ribierre, G. Correia , Y. J. Dappe, F. Mathevet, L. Mager, B. Heinrich, S. Méry. Control of the Organization of 4,40-bis(carbazole)-1,10-biphenyl (CBP) Molecular Materials through Siloxane Functionalization. Molecules 2023, 28, 2038-2056.

  • T. Olla, R. Jabbour, A. Labiod, O. Boyron, S. Méry, B. Heinrich, T. Heiser, D. Jacquemin, P. Lévêque, A. Lesage, and N. Leclerc. How halogenation impacts the polymer backbone conformation : learning from combination of solid-state MAS NMR and X-ray scattering. Adv. Funct. Mater. 2022, 2204929.
  • G. D’Avino, R. Hegger, D. Brey, P.K. Budakoti, S. Méry, I. Burghardt. Electron-hole separation in perylene diimide-based self-assembled nanostructures : Microelectrostatics analysis an Kinetic Monte Carlo simulations. J. Phys. Chem C 2022, 126, 9762-9776.
  • A. Labiod, O.A. Ibraikulov, S. Dabos-Seignon, S. Ferry, B. Heinrich, S. Méry, S. Fall, H.J. Tchognia-NKuissi, T. Heiser, C. Cabanetos, N. Leclerc, P. Lévêque. Photo-degradation in bulk heterojunction organic solar cells using a fullerene or a non-fullerene derivative electron acceptor. Organic Electronics 2022, 107, 106549.
  • J. Shaya, G. Correia, B. Heinrich, J.-C. Ribierre, K. Polychronopoulou, L. Mager, S. Méry. Functionalization of biphenylcarbazole (CBP) with siloxane-hybrid chains for solvent-free liquid materials. Molecules 2022, 27, 89.
  • J. Jing, B. Heinrich, A. Prel, E. Steveler, T. Han, I. Bulut, S. Méry, Y. Leroy, N. Leclerc, P. Lévêque, M. Rosenthal, D.A. Ivanov, T. Heiser. Efficient 3D charge transport in planar triazatruxene-based dumbbell-shaped molecules forming a bridged columnar phase. J. Mat. Chem. A 2021, 9, 24315-24324.
  • C. Mahmoudi, I. Bulut, J. Jing, S. Fall, B. Heinrich, S. Méry, T. Heiser, P. Lévêque, E. Steveler, M. Majdoub, N. Leclerc. Regioisomers of organic semiconducting dumbbell-shaped molecules: synthesis and structure-properties relationship. Eur. J. Org. Chem. 2021.
  • X. Zhu, C. Hessin, A. Salam, L. Sosa-Vargas, D. Kreher, C. Adachi, A. Proust, P. Mialane, J. Marrot, A. Bouchet, M. Sliwa, S. Méry, B. Heinrich, F. Mathevet, G. Izzet. Photoactive Organic/Inorganic Hybrid Materials with Nanosegregated Donor–Acceptor Arrays. Angew. Chem. Int. Ed. 2021, 60, 8419–8424.
  • N. Kamatham, O.A. Ibraikulov, P. Durand, J. Wang, O. Boyron, B. Heinrich, T. Heiser, P. Leveque, N. Leclerc, S. Mery, On the Impact of Linear Siloxanated Side Chains on the Molecular Self-Assembling and Charge Transport Properties of Conjugated Polymers, Advanced Functional Materials. 31 (2021) 2007734.
  • T. Olla, O.A. Ibraikulov, S. Ferry, O. Boyron, S. Mery, B. Heinrich, T. Heiser, P. Lévêque, N. Leclerc, Benzothiadiazole Halogenation Impact in Conjugated Polymers, a Comprehensive Study, Macromolecules. 52 (2019) 8006–8016.
  • O.A. Ibraikulov, J. Wang, N. Kamatham, B. Heinrich, S. Méry, M. Kohlstätdt, U. Würfel, S. Ferry, N. Leclerc, T. Heiser, P. Lévêque. ITO free organic photovoltaic modules based on fluorinated polymers deposited from non-halogenated solution: a major step towards large-scale module production. Solar RRL, 1900273 (2019);
  • P.-O. Schwartz, F. Moingeon, J. Roeser, E. Couzigne, E. Voirin, P. Masson, S. Mery, Preparation of multi-allylic dendronized polymers via atom-transfer radical polymerization, European Polymer Journal. 118 (2019) 358–364.
  • J.-C. Ribierre, Z. Li, X. Liu, E. Lacaze, B. Heinrich, S. Mery, P. Sleczkowski, Y. Xiao, F. Lafolet, D. Hashizume, T. Aoyama, M. Uchiyama, J.W. Wu, E. Zaborova, F. Fages, A. D’Aléo, F. Mathevet, C. Adachi, A solvent-free and vacuum-free melt-processing method to fabricate organic semiconducting layers with large crystal size for organic electronic applications, J. Mater. Chem. C. 7, 3190-3198 (2019).
  • O.A. Ibraikulov, C. Ngov, P. Chavez, I. Bulut, B. Heinrich, O. Boyron, K.L. Gerasimov, D.A. Ivanov, S. Swaraj, S. Mery, N. Leclerc, P. Leveque, T. Heiser, Face-on orientation of fluorinated polymers conveyed by long alkyl chains: a prerequisite for high photovoltaic performances, Journal of Materials Chemistry A. 6 (2018) 12038–12045.
  • S. Marzouk, B. Heinrich, P. Leveque, N. Leclerc, J. Khiari, S. Mery, Phthalocyanine-based dumbbell-shaped molecule: Synthesis, structure and charge transport studies, Dyes and Pigments. 154 (2018) 282–289.
  • J.-C. Ribierre, T. Tanaka, L. Zhao, Y. Yokota, S. Matsumoto, D. Hashizume, K. Takaishi, T. Muto, B. Heinrich, S. Mery, F. Mathevet, T. Matsushima, M. Uchiyama, C. Adachi, T. Aoyama, Simultaneous Edge-on to Face-on Reorientation and 1D Alignment of Small pi-Conjugated Molecules Using Room-Temperature Mechanical Rubbing, Advanced Functional Materials. 28 (2018).
  • T. Han, I. Bulut, S. Mery, B. Heinrich, P. Leveque, N. Leclerc, T. Heiser, Improved structural order by side-chain engineering of organic small molecules for photovoltaic applications, Journal of Materials Chemistry C. 5 (2017) 10794–10800.
  • I. Bulut, Q. Huaulme, A. Mirloup, P. Chavez, S. Fall, A. Hebraud, S. Mery, B. Heinrich, T. Heiser, P. Leveque, N. Leclerc, Rational Engineering of BODIPY-Bridged Trisindole Derivatives for Solar Cell Applications, ChemSusChem. 10 (2017) 1878–1882.
  • S. Marzouk, A. Khalfallah, B. Heinrich, J.E. Khiari, A. Kriaa, S. Mery, Synthesis and mesomorphic properties of liquid crystals containing a perfluorinated segment via different linkers, Journal of Fluorine Chemistry. 197 (2017) 15–23.
  • L. Liu, P. Eisenbrandt, T. Roland, M. Polkehn, P.-O. Schwartz, K. Bruchlos, B. Omiecienski, S. Ludwigs, N. Leclerc, E. Zaborova, J. Léonard, S. Mery, I. Burghardt, S. Haacke, Controlling Charge Separation and Recombination by Chemical Design in Donor-Acceptor Dyads, Physical Chemistry Chemical Physics. 18 (2016) 18536–18548.
  • M. Polkehn, H. Tamura, P. Eisenbrandt, S. Haacke, S. Mery, I. Burghardt, Molecular Packing Determines Charge Separation in a Liquid Crystalline Bisthiophene–Perylene Diimide Donor–Acceptor Material, Journal of Physical Chemistry Letters. 7 (2016) 1327–1334.
  • M. Polkehn, P. Eisenbrandt, H. Tamura, S. Haacke, S. Mery, I. Burghardt, Ultrafast excitonic and charge transfer dynamics in nanostructured organic polymer materials, in: Andrews, DL and Nunzi, JM and Ostendorf, A (Ed.), NANOPHOTONICS VI, SPIE-INT SOC OPTICAL ENGINEERING, 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA, 2016.
  • K.J. Lee, J.H. Woo, Y. Xiao, E. Kim, L. Mazur, D. Kreher, A.-J. Attias, K. Matczyszyn, M. Samoc, B. Heinrich, S. Mery, F. Fages, L. Mager, A. D’Aleo, J.W. Wu, F. MATHEVET, P. Andre, J.-C. Ribierre, Structure-charge transfer property relationship in self-assembled discotic liquid-crystalline donor-acceptor dyad and triad thin films, RSC Advances. 6 (2016) 57811–57819.
  • C.T. Howells, K. Marbou, H. Kim, K.J. Lee, B. Heinrich, S.J. Kim, A. Nakao, T. Aoyama, S. Furukawa, J.-H. Kim, E. Kim, F. Mathevet, S. Mery, I.D.W. Samuel, A. Al Ghaferi, M.S. Dahlem, M. Uchiyama, S.Y. Kim, J.W. Wu, J.-C. Ribierre, C. Adachi, D.-W. Kim, P. Andre, Enhanced organic solar cells efficiency through electronic and electro-optic effects resulting from charge transfers in polymer hole transport blends, Journal of Materials Chemistry A. 4 (2016) 4252–4263.
  • B. Grévin, P.-O. Schwartz, L. Biniek, M. Brinkmann, N. Leclerc, E. Zaborova, S. Mery, High-resolution noncontact AFM and Kelvin probe force microscopy investigations of self-assembled photovoltaic donor–acceptor dyads, Beilstein Journal of Nanotechnology. 7 (2016) 799–808.
  • I. Bulut, P. Chavez, S. Fall, S. Mery, B. Heinrich, J. Rault-Berthelot, C. Poriel, P. Leveque, N. Leclerc, Incorporation of spirobifluorene regioisomers in electron-donating molecular systems for organic solar cells, RSC Advances. 6 (2016) 25952–25959.
  • I. Bulut, P. Chavez, A. Mirloup, Q. Huaulme, A. Hebraud, B. Heinrich, S. Fall, S. Mery, R. Ziessel, T. Heiser, P. Leveque, N. Leclerc, Thiazole-based scaffolding for high performance solar cells, Journal of Materials Chemistry C. 4 (2016) 4296–4303.
  • J.-C. Ribierre, L. Zhao, M. Inoue, P.-O. Schwartz, J.-H. Kim, K. Yoshida, A.S.D. Sandanayaka, H. Nakanotani, L. Mager, S. Mery, C. Adachi, Low threshold amplified spontaneous emission and ambipolar charge transport in non-volatile liquid fluorene derivatives, Chemical Communications. 52 (2016) 3103–3106.
  • I. Bulut, P. Leveque, B. Heinrich, T. Heiser, R. Bechara, N. Zimmermann, S. Mery, R. Ziessel, N. Leclerc, LUMO’s modulation by electron withdrawing unit modification in amorphous TAT dumbbell-shaped molecules, Journal of Materials Chemistry A. 3 (2015) 6620–6628.
  • L. Biniek, P.-O. Schwartz, E. Zaborova, B. Heinrich, N. Leclerc, S. Mery, M. Brinkman, Zipper-like molecular packing of donor-acceptor conjugated co-oligomers based on perylenediimide, Journal of Materials Chemistry C. 3 (2015) 3342–3349.
  • P.-O. Schwartz, L. Biniek, E. Zaborova, B. Heinrich, M. Brinkrnann, N. Leclerc, S. Mery, Perylenediimide-Based Donor-Acceptor Dyads and Triads: Impact of Molecular Architecture on Self-Assembling Properties, Journal of the American Chemical Society. 136 (2014) 5981–5992.
  • E. Zaborova, P. Chavez, R. Bechara, P. Leveque, T. Heiser, S. Mery, N. Leclerc, Thiazole as a weak electron-donor unit to lower the frontier orbital energy levels of donor-acceptor alternating conjugated materials, Chemical Communications. 49 (2013) 9938–9940.
  • P.O. Schwartz, E. Zaborova, R. Bechara, P. Leveque, T. Heiser, S. Mery, N. Leclerc, Impact of the arrangement of functional moieties within small molecular systems for solution processable bulk heterojunction solar cells, New Journal of Chemistry. 37 (2013) 2317–2323.
  • J. Roeser, B. Heinrich, C. Bourgogne, M. Rawiso, S. Michel, V. Hubscher-Bruder, F. Arnaud-Neu, S. Mery, Dendronized Polymers with Silver and Mercury Cations Recognition: Complexation Studies and Polyelectrolyte Behavior, Macromolecules (Washington, DC, U. S.). 46 (2013) 7075–7085.
  • T. Roland, J. Léonard, G.H. Ramirez, S. Mery, O. Yurchenko, S. Ludwigs, S. Haacke, Sub-100 fs charge transfer in a novel donor-acceptor-donor triad organized in a smectic film, Physical Chemistry Chemical Physics. 14 (2012) 273–279.
  • T. Roland, G.H. Ramirez, J. Léonard, S. Mery, S. Haacke, Ultrafast broadband laser spectroscopy reveals energy and charge transfer in novel donor-acceptor triads for photovoltaic applications, in: Ye, C and Wang, ZL and Zhou, B (Ed.), Journal of Physics: Conference Series, 2011: p. 012006 /p. 1–6.
  • F. Allais, A. Lancelot, F. Pion, K. Mazeau, S. Mery, P.-H. Ducrot, Synthesis, molecular modeling and characterization of polyphenolic dendronized polymers via ROMP, in: Abstracts of Papers of the American Chemical Society, 2011.
  • J. Roeser, F. Moingeon, B. Heinrich, P. Masson, F. Arnaud-Neu, M. Rawiso, S. Mery, Dendronized Polymers with Peripheral Oligo(ethylene oxide) Chains: Thermoresponsive Behavior and Shape Anisotropy in Solution, Macromolecules. 44 (2011) 8925–8935.