Publication date: 15th December 2025
Chiral halide perovskites (CHPs) constitute an emerging class of materials that combine the remarkable optoelectronic properties of halide perovskites with chirality. This synergy unlocks advanced possibilities in chiroptics, spintronics, and next-generation optoelectronic technologies. [1] However, imparting chirality to these materials remains challenging, as intrinsically chiral perovskite emitters are rare and require precise synthetic control or advanced surface engineering. In this presentation, I will discuss efforts to create chiral luminescent perovskite nanocrystals through surface functionalization with chiral ligands and coupling these materials to engineered chiral metasurfaces. Our strategy enables the manipulation of charge, spin, and light–matter interactions through structural asymmetry, eliminating the need for magnetic fields or low temperatures. To gain insight into the photophysics of chiral perovskites, we employ polarisation-resolved ultrafast spectroscopy, identifying distinct vibrational modes present in chiral and achiral perovskites.[2] Our results open new avenues for employing chiral perovskites in spin-optoelectronics and advanced display technologies, where nanoscale control over light polarisation is crucial for enhanced device performance and novel functionalities.
The work of P.M. and D.B. is supported by the European Innovation Council Pathfinder Challenges project number 101162112 (RADIANT).
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