Lorenzo Malavasi - Energy and Materials Chemistry Group

Chirality Transfer in Metal Halide Semiconductors Chirality in metal halide semiconductors has emerged as a powerful strategy for nonlinear optoelectronics and spin-dependent functionalities. Herein we explore the mechanisms underpinning chirality tr...

Happy to share our first 2026 paper on "Chirality Transfer in Metal Halide Semiconductors" out in ACS Energy Letters @acs.org pubs.acs.org/doi/10.1021/...

🟠Share your research at #MATSUS26 on thin-film and perovskite(-inspired) materials, spectroscopy, theory, defects, ML discovery, photocatalysis, indoor PV and low-D perovskites.

📍Barcelona, Spain
📅23-27 March 2026

👉Last days to send an oral abstract: https://www.nanoge.org/MATSUSSpring26/home

Silver–bismuth perovskite-inspired materials: chemistry, optoelectronic properties, and emerging applications in photovoltaics and beyond Silver–bismuth perovskite-inspired materials (Ag–Bi PIMs) encompass halide double perovskites, vacancy-ordered Cs2AgBi2I9, the (Cu)–Ag–Bi–I family, and structurally related chalcogenides and mixed-ani...

Happy to share our recent multi-author review on silver-bismuth perovskite inspired materials leaded by @pvivo.bsky.social published in J. Mater. Chem. A @jmaterchem.rsc.org

pubs.rsc.org/en/content/a...

Postdoc opening in Feldmann Lab at EPFL on quantum light sources

Postdoc Opening at EPFL - please share!
I am hiring a post-doctoral fellow here in the Laboratory for Energy Materials at EPFL to work on the next generation of quantum light sources, with an earliest start date of January 2026 for up to 4 years.

#quantum #light #energymaterials #academia #jobalert

Organic Cation Dynamics in the Layered Lead Iodide Perovskites BA2PbI4 and PEA2PbI4 We report on a quasielastic neutron scattering (QENS) study of the rotational dynamics of organic cations in the optoelectronic layered metal halide perovskites BA2PbI4 (BA = butylammonium, CH3(CH2)3N...

Happy to share our recent work on the Cation Dynamics in the Layered Lead Iodide Perovskites BA2PbI4 and PEA2PbI4 | The Journal of Physical Chemistry Letters pubs.acs.org/doi/10.1021/...

Congratulazioni 👏👏👏

Engineering the Electronic Structure and Optoelectronic Properties of Chiral Metal Halides through Cation Design The tunability of hybrid organic–inorganic metal halides through targeted chemical design is one of their most attractive features, enabling fine control over physical properties for optoelectronic ap...

New paper out in ACS Materials Letters where we developed a novel class of chiral metal halides using custom-designed chiral amines synthesized ad hoc in our laboratories." | ACS Materials Letters @pubs.acs.org pubs.acs.org/doi/10.1021/...

3D Chiral Metal Halide Semiconductors Chiral metal halides are promising materials for nonlinear optics and spin-selective devices. Typically, chirality is introduced via large chiral organic cations, leading to low-dimensional structures and limitations in charge transport. Here, we design a family of chiral metal halides based on the relatively small ditopic R/S-3-aminoquinuclidine (3-AQ) cation, forming an (R/S-3AQ)Pb2Br6 structure closely related to the 3D corner-sharing octahedral network of perovskites. The resulting material exhibits a direct bandgap, isotropic band structure, and fully 3D photoexcitation. Circular dichroism confirms a chiral anisotropy factor consistent with theoretical predictions. Moreover, the material displays a Rashba effect in the conduction band, which is attributed to spin–orbit coupling and the lack of inversion symmetry. Offering rich chemical tunability and efficient 3D charge transport, this new class of chiral semiconductors provides a promising platform for advancing nonlinear optoelectronic and spintronic devices.

Happy to share our latest paper where we reported a novel class of chiral hybrid metal halides showing a 3D interconnection and isotropic conductivity coupled to chiroptical properties | ACS Energy Letters @acs.org pubs.acs.org/doi/10.1021/...

We are now accepting papers for a Focus Issue on Halide Perovskites for Solar Fuel Production to be published in JPhys Energy @ioppublishing.bsky.social

iopscience.iop.org/collections/...

Application of Lead-Free Metal Halide Perovskite Heterojunctions for the Carbohalogenation of C–C Multiple Bonds A graphitic carbon nitride/lead-free double perovskite heterojunction (g-C3N4/Cs2AgBiCl6) has been adopted as a heterogeneous photocatalyst under visible light irradiation. The employed material enabl...

Our recent paper shows the successful application of a double perovskite-based heterojunctions for the carbohalogenation of C–C Multiple Bonds. @pubs.acs.org |https://pubs.acs.org/doi/10.1021/acs.orglett.5c00780

Meta used at least 39 of my works to train their AI, much of it under CC-BY license.
Search for your own name here: www.theatlantic.com/technology/a...

“Highly Efficient and Stable” Perovskite Solar Cells: Hype Versus Reality

“Highly Efficient and Stable” Perovskite Solar Cells: Hype Versus Reality
Editorial in the latest issue of ACS Energy Letters raises some interesting questions on the use of this popular phrase. Read more.... pubs.acs.org/doi/10.1021/...

Compositional and Defect Engineering of Metal Halide Perovskite‐Based Heterojunctions for Efficient Nitrogen Photofixation The development of innovative photocatalysts for nitrogen photofixation is crucial for carbon-neutral ammonia production. Metal halide perovskites (MHPs) offer tunable bandgaps for various applicatio...

Happt to share our recent paper on the development of perovskite-based heterojunctions for nitrogen photofixation! onlinelibrary.wiley.com/doi/10.1002/...

Group Christmas Lunch 🫶😇