2D Materials

The rise of graphene, a semi-metal, has triggered in parallel the development of fully organic or inorganic 2D materials with semiconducting properties. With their huge surface to volume ratio and chemical versatility, these materials further offer many opportunities in the field of sensing or catalysis.

At CMN, many of our studies have focused on metal dichalcogenides (such as MoS2 or WS2) to characterize hybrid materials obtained by depositing electroactive molecules on their surface or used as platform for sensing volatile gases or triggering photocatalytic reactions such as hydrogen production. Tailoring of the electronic structure of 2D materials has also been accomplished for many polyaromatic hydrocarbons (PAH).

Recent Publications

Operando Investigation of WS2 Gas Sensors: Simultaneous Ambient Pressure X-ray Photoelectron Spectroscopy and Electrical Characterization in Unveiling Sensing Mechanisms during Toxic Gas Exposure

M. Scardamaglia, J. Casanova-Chafer, R. Temperton, F.E. Annanouch, A. Mohammadpour, G. Malandra, A. Das, A. Alagh, I. Arbouche, L. Montoisy, D. Cornil, J. Cornil, E. Llobet, and C. Bittencourt.
ACS Sensors 9 (2024) 4079-4088. DOI: https://doi.org/10.1021/acssensors.4c01033

Defect-Rich Graphdiyne Quantum Dots as Efficient Electron-Donors for Hydrogen Generation

W. Ullah, A. Slassi, C. Wang, E. Paineau, M.H. Ha-Thi, T. Pino, Z. Halime, A. Gayral, M. Vallet, J. Degrouard, J. Cornil, and M. Nawfal Ghazzal.
Advanced Energy Materials 14 (2024) 2401547. DOI: https://doi.org/10.1002/aenm.202401547

MXenes with Ordered Triatomic-Layer Borate Polyanion Terminations

D. Li, W. Zheng, S.M. Gali, K. Sobczak, M. Horak, J. Polcak, N. Lopatik, Z. Li, J. Zhang, D. Sabaghi, S. Zhou, P.P. Michalowski, E. Zschech, E. Brunner, M. Donten, T. Sikola, M. Bonn, H.I. Wang, D. Beljonne, M. Yu, and X. Feng.
Nature Materials 23 (2024) 1085-1092. DOI: https://doi.org/10.1038/s41563-024-01911-2

Exceptionally High Charge Mobility in Phthalocyanine-Based Poly(benzimidazobenzophenantroline)-ladder-type Two-Dimensional Conjugated Polymers

M. Wang, S. Fu, P. Petkov, Y. Fu, Z. Zhang, Y. Liu, J. Ma, G. Chen, S.M. Gali, L. Gao, Y. Lu, S. Paasch, H. Zhong, H.P. Sterinrück, E. Canovas, E. Brunner, D. Beljonne, M. Bonn, H.I. Wang, R. Dong, and X. Feng.
Nature Materials 22 (2023) 880-887. DOI: https://doi.org/10.1038/s41563-023-01581-6