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Annamaria Petrozza

Senior Researcher Tenured - Principal Investigator
Senior Scientist - Tenured

Research Line

Advanced Materials for Optoelectronics


CNST@PoliMi Milano


Via Pascoli 70/3
+39 022 3999 871
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Annamaria Petrozza was awarded a Master of Science in Electronic Engineering (emphasis on Devices, design and modelling) at Ecole Supèrieure d’Electricité (Paris, France) in 2003 under the T.I.M.E. (Top Industrial Manager in Europe) program. In 2004 she got a Master degree in Electronic Engineering (emphasis on Optoelectronics) at Politecnico of Milan. In 2008 she received her PhD in Physics from the University of Cambridge (UK) with a thesis on the study of optoelectronic processes at organic and hybrid semiconductors interfaces under the supervision of Dr. J.S. Kim and Prof Sir R.H. Friend. From July 2008 to December 2009 she worked as research scientist at the Sharp Laboratories of Europe, Ltd on the development of new market competitive solar cell technologies (Dye Sensitized Solar cells/Colloidal Quantum Dots Sensitized Solar cells). Her main tasks were to establish key needs of PV market, write research proposals to submit to the Sharp Business Group, and design and implement experiments. In 2010 she joined the newly founded Center for Nano Science and Technology (CNST) of IIT in Milan. Since 2013 she leads the “Advanced Materials for Optoelectronics” Research Line at CNST.  Her research is focused on the development of new, sustainable, optoelectronic technologies which can be extensively integrated in the everyday life.

She got the “Innovators Under 35 Italy 2014” award by the MIT Technology Review for her pioneering work on perovskites. She has been selected among the “Emerging Investigators 2017” by the Royal Society of Chemistry. In 2017 Annamaria received the highly competitive European Research Council Cosolidator grant, a 2.2M Euros award to support excellent and disruptive science.

She is in the editorial board of Advanced Energy Materials (Wiley) and Matter (Cell Press).  From February 2019 to February 2020 she served as associated editor at "Sustainable Energy & Fuels" (Royal Society of Chemistry). Currently she serve as senior editor at "ACS Energy Letters" (American Chemical Society).

Annamaria has an h-index of 44 (Scopus, June 2020) with more than 17500 citations. She has been listed among the the “Highly Cited Researcher 2018 (cross field)” and “Highly Cited Researcher 2019 (cross field)” by Clarivate Analytics


The research activities are mainly focused on the investigation of the physics behind low cost "future generation" photovoltaic concepts and on the development of associated optoelectronic devices.

The research group she leads is active in fundamental studies on light harvesting and charge generation processes, charge transport and recombination processes  at organic and hybrid interfaces, whilst improving the state-of-the-art device concepts in terms of absolute performance. To achieve so the team deals with materials synthesis and processing, materials characterization and devices design and testing.


On going projects

  • "Study of carrier transport in MAterials by time-Resolved specTroscopy with ultrashort soft X-ray light" (SMART-X) -Marie Skłodowska Curie Action European Training Network (2020-2024)
  • "The role of Softness in the Physics of Defects: Probing Buried Interfaces in Perovskites Optoelectronic Devices" (SOPHY) - ERC-2017-COG (2018-2023) -
  • "Perovskite Thin-film Photovoltaics" (PERTPV) - H2020-LCE-07-2017 (2018-2021) -
  • "European School on Artificial Leaf: Electrodes & Devices (eScaled) - Marie Skłodowska Curie Action European Training Network (2018-2022)
  • "Making Perovskites Truly exploitable" (MAESTRO) - Marie Skłodowska Curie Action European Training Network (2017-2021) -

 The group is currently hosting the following Marie Skłodowska-Curie Individual Fellowships

  • PERovskIte Coherent Light Sources (PERICLES) - Dr Daniele Cortecchia

Concluded Projects

  • Fully Air-Processable and Air-Stable Perovskite Solar Cells Based on Inorganic Metal Halide Perovskite Nanocrystals (FASTEST) - Marie Skłodowska-Curie Individual Fellowships, PI:Dr Min Kim ( 2017-2019)
  • Quantum Light Spectroscopy of Polariton Lasers (QUANTUM-LOOP) - Marie Skłodowska-Curie Global Fellowships - PI: Dr Ajay Ram Srimath Kandada (2016-2019)
  •  PEROVSKITE OPTOELECTRONICS  - MSCA-RISE-Marie Skłodowska- Curie Research and Innovation Staff Exchange  (2015-2019)
  • "Dye Sensitized solar cells with enhanced stability" (DESTINY) – Marie Curie Initial Training Network (2012-2016).
  • " Meso-superstructured Hybrid Solar Cells " (MESO) - FP7-NMP-2013-SMALL-7 (2013-2016)
  • Green nanomaterials for next-generation photovoltaics (GREENS) - Fondazione Cariplo (2014-2016)
  • "IperLuce" - Fondazione Cariplo (2015-2017)
  • " SupramolecularlY eNgineered arCHitectures for optoelectRonics and photONICS: a multi-site initial training action (SYNCHRONICS) - Innovative Training Networks (2015-2018)
  • “Probing Hybrid Interfaces of High Performance Solid-State Solar Cells” The Royal Society International Exchanges Scheme 2012/R2 (2013-2014) - in collaboration with Dr H.J. Snaith (University of Oxford).

Selected Publications

  • S. Motti et al, "Defect Activity in Lead–Halide Perovskites" Advanced Materials, 2019
  • S. Motti et al, "Controlling competing photochemical reactions stabilizes perovskite solar cells" Nature Photonics, 13, 532, 2019
  • A. Petrozza and F. De Angelis "Clues from Defects Photochemistry" Nature materials 17, 38, 2018
  • D. Meggiolaro et al, "Iodine chemistry determines the defect tolerance of lead-halide perovskites"Energy & Environmental Science 11, 702, 2018
  • D. Cortecchia et al, “Broadband Emission in Two-Dimensional Hybrid Perovskites: The Role of Structural Deformation”, J. Am. Chem. Soc., 139, 39, 2017.
  • T. Leijtens et al, “Carrier trapping and recombination: the role of defect physics in enhancing the open circuit voltage of metal halide perovskite solar cells” Energy Environ. Sci., 9, 3472-3481, 2016.
  • Q. A. Akkerman et al, “Strongly emissive perovskite nanocrystal inks for high-voltage solar cellsNature Energy, 2,16194, 2016.
  • James M Ball and Annamaria Petrozza, “Defects in perovskite-halides and their effects in solar cells” Nature Energy, 1, 16149, 2016
  • G. Grancini & A.R. Srimath Kandada et al., “Role of microstructure in the electron–hole interaction of hybrid lead halide perovskites” Nature Photonics, doi:10.1038/nphoton.2015.151, 2015C.
  • V. D’Innocenzo et al., “Excitons versus Free Charges in Organo-lead Tri-Halide PerovskitesNature Communications, 5, 3586, 2014. (Highlighted in the editorial “Temporary bonds” Nature Materials 13, 538 (2014)),
  • S. D. Stranks et al. "Electron-Hole Diffusion Lengths Exceeding 1 Micron in an Organ-ometal Tri-halide Perovskite Absorber", Science 342, 341, 2013





  • 2019                    Highly Cited Researcher 2019 (cross field) – Clarivate Analytic

  • 2018                    Highly Cited Researcher 2018 (cross field) – Clarivate Analytics 

  • 2017                    Royal Society of Chemistry- Emerging Investigators 2017

  • 2013                   “Innovators Under 35 Italy 2014”, MIT Technology Review – Italian Section 

  • 2008                   Scholarship “Fondazione Angelo della Riccia”, Switzerland

  • 2008                   “Lundgren Award” - University of Cambridge, UK

  •  2007-2008         “Atkinson Scholarship” Clare College, University of Cambridge, UK

  •  2004-2007          EPSRC PhD Fellowship, Cavendish Laboratory, University of Cambridge, UK

  •  2004                  “Vaudo Prize”- Best Master Thesis - Rotary Club Milano, Italy

  •  2001-2003          T.I.M.E – Top Industrial Managers of Europe - Master scholarship, Italy


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