Research

Organic Thin Films and Interfaces

Growth (by thermal evaporation or wet chemistry) and characterization (by optical and electron spectroscopies, also exploiting synchrotron radiation) of organic molecular films at surfaces for molecular electronics applications. Organic thin films and related interfaces ratlated to organic thin film transitors (OTFT), organic light emitting devices (OLED), organic light emitting transistors (OLET) and photovoltaics are characterization at nano- and micro-scale through UPS, XPS, dichroic XAS and reflectivity, Vis-UV absorption and reflectivity, atomic force microscopies to model and optimize device performance. Particuar emphasis is given to the study of interface formation, molecular orientation, composition and reactivity. 

 

 

Inorganic interfaces

Growth in ulra-high-vacuum and study of nano-structured surfaces and interfaces on semiconductors, insulators and metals, with attention to the physico-chemical and structural properties of the interface. Typical systems that are investigated include  metal-semiconductor (rare earths on semiconductors) and dielectric-semiconductor (ionic fluorides and oxides on semiconductors) interfaces; magnetic ultrathin layers; gas chemisorption on surfaces (for catalysis).

 

 

 

 

 

Soft X-ray reflectivity of anisotropic layered materials

Development of protocols for the interpretation of the reflectivity lineshape form Vis to soft-Xrays based on the theoretical prdiction of the aborption cross section and the simulation of the propagation of the electromagnetic field in anysotropic layered materials. Application to anisotropic organic thin films.

 

 

Auto-luminescence of biological materials

Investigation and interpretation of the luminscence generated by endogenous chromophores in skin cells for the fast diagnosis of skin neoplatic alterations (in collaboration with the CHIMOMO Dept. of the University of Modena and Reggio Emilia).  Study of the luminescence yield and lineshape as a function of the excitation wavelength.

LUMINA PROJECT (FAR2019)

 

 

 

 

 

 

Main present collaborations

  • CNR-IOM, Trieste, Italy
  • CNR-IMEM, Trento, Italy
  • Dipartimento di Scienze, Univ. of Roma3, Italy
  • F. Ioffe Institute, St. Petersburg, Russia
  • Dept. of Physics, University of Bath, UK
  • Institut des Sciences Moléculaires d'Orsay, Paris, France
  • New York University Abu Dhabi
  • Dept. of Physics, University of Johannesburg, South Africa

 

 

 

Selected recent publications

  • “Buried Interfaces Effects in Ionic Conductive LaF3–SrF2 Multilayers” Konstantin Koshmak, Alexander Banshchikov, Regina Ciancio, Pasquale Orgiani, Francesco Borgatti, Giancarlo Panaccione, Angelo Giglia, Denis Céolin, Jean-Pascal Rueff, Nikolai S. Sokolov, and Luca Pasquali, Advanced Materials Interfaces (2017), 4, 1600875; DOI: 10.1002/admi.201600875
  • “Controlling In-Plane Isotropic and Anisotropic Orientation of Organic Semiconductor Molecules on Ionic Fluoride Dielectrics” Jiang Tingming, Koshmak Konstantin, Giglia Angelo, Banshchikov Alexander, Sokolov Nikolai S., Dinelli Franco, Capelli Raffaella, Pasquali Luca, The Journal of Physical Chemistry C (2017), 121, 4426-4433, DOI: 10.1021/acs.jpcc.6b12926
  • “3D reconstruction of pentacene structural organization in top-contact OTFTs via resonant soft X-ray reflectivity” Raffaella Capelli, Marco Nardi, Tullio Toccoli, Roberto Verucchi, Franco Dinelli, Carolina Gelsomini, Konstantin Koshmak, Angelo Giglia, Stefano Nannarone, Luca Pasquali, Applied Physics Letters 112, 031602 (2018); doi: 10.1063/1.5008941
  • “Role of gallium diffusion in the formation of a magnetically dead layer at the Y3Fe5O12/Gd3Ga5O12 epitaxial interface” S. M. Suturin, A. M. Korovin, V. E. Bursian, L. V. Lutsev, V. Bourobina, N. L. Yakovlev, M. Montecchi, L. Pasquali, V. Ukleev, A. Vorobiev, A. Devishvili, and N. S. Sokolov, Phys. Rev. Materials 2, (2018), 104404, DOI: 10.1103/PhysRevMaterials.2.104404
  • “Oligothiophene-based Phosphonates for Surface Modification of Ultraflat Transparent Conductive Oxides” M. Timpel, M. V. Nardi, B. Wegner, G. Ligorio, L. Pasquali, M. Pätzel, S. Hecht, H. Ohta and N. Koch, Advanced Materials Interfaces, 7 (2020) 1902114, DOI: 10.1002/admi.201902114
  • “Exchange Interactions Drive Supramolecular Chiral Induction in Polyaniline” Suryakant Mishra, Anup Kumar, Munuswamy Venkatesan, Laura Pigani, Luca Pasquali, Claudio Fontanesi, Small Methods, 2020, 4(10), 2000617, doi: 10.1002/smtd.202000617
  • “Analysis of Resonant Soft X-ray Reflectivity of Anisotropic Layered Materials” Pasquali L., Mahne N., Giglia A., Verna A., Sponza L., Capelli R., Bonfatti M., Mezzadri F., Galligani E., Nannarone S., Surfaces, 2021, 4, 18–30. https://doi.org/10.3390/surfaces4010004
  • Analysis of External and Internal Disorder to Understand Band-Like Transport in n-Type Organic Semiconductors”, Marc-Antoine Stoeckel, Yoann Olivier, Marco Gobbi, Dmytro Dudenko, Vincent Lemaur, Mohamed Zbiri, Anne A. Y. Guilbert, Gabriele D’Avino, Fabiola Liscio, Andrea Migliori, Luca Ortolani, Nicola Demitri, Xin Jin, Young-Gyun Jeong, Andrea Liscio, Marco-Vittorio Nardi, Luca Pasquali, Luca Razzari, David Beljonne, Paolo Samorì, Emanuele Orgiu, Advanced Materials (2021) 2007870; doi: 10.1002/adma.202007870
  • "Thermally activated delayed fluorescence (TADF) organic molecules for efficient X-ray scintillation and imaging" Wenbo Ma, Yirong Su, Qisheng Zhang, Chao Deng, Luca Pasquali, Wenjuan Zhu, Yue Tian, Peng Ran, Zeng Chen, Gaoyuan Yang, Guijie Liang, Tianyu Liu, Haiming Zhu, Peng Huang, Haizheng Zhong, Kangwei Wang, Shaoqian Peng, Jianlong Xia, Huafeng Liu, Xu Liu, Yang Yang, Nature Materials (2021) doi: https://doi.org/10.1038/s41563-021-01132-x
  • “Enhancement of X-ray-Excited Red Luminescence of Chromium-Doped Zinc Gallate via Ultrasmall Silicon Carbide Nanocrystals” David Beke, Marco V. Nardi, Gabor Bortel, Melanie Timpel, Zsolt Czigany, Luca Pasquali, Andrea Chiappini, Giorgio Bais, Matyas Rudolf, Dora Zalka, Franca Bigi, Francesca Rossi, Laszlo Bencs, Aron Pekker, Bence G. Markus, Giancarlo Salviati, Stephen E. Saddow, Katalin Kamar, Ferenc Simon, and Adam Gali, Chemistry of Materials (2021) 33, 2457–2465; doi: 10.1021/acs.chemmater.0c04671
  • “Wavy graphene sheets from electrochemical sewing of corannulene” Carlo Bruno, Eleonora Ussano, Gianni Barucca, Davide Vanossi, Giovanni Valenti, Edward A. Jackson, Andrea Goldoni, Lucio Litti, Simona Fermani, Luca Pasquali, Moreno Meneghetti, Claudio Fontanesi, Lawrence T. Scott, Francesco Paolucci and Massimo Marcaccio, Chemical Science (2021) 12, 8048-8057; doi: 10.1039/D1SC00898F
  • “2D-MoS2 goes 3D: Transferring Optical and Electronic Properties of 2D MoS2 to a large-area thin film”, Melanie Timpel, Giovanni Ligorio, Amir Ghiami, Luca Gavioli, Emanuele Cavaliere, Andrea Chiappini, Francesca Rossi, Luca Pasquali, Fabian Gärisch, Emil J. W. List-Kratochvil, Petr Nozar, Alberto Quaranta, Roberto Verucchi & Marco V. Nardi, npj 2D Materials and Applications, (2021) 5, 64, doi: 10.1038/s41699-021-00244-x