Publication date: 15th December 2025
The hot-injection method is one of the most employed method for the synthesis of high-quality nanocrystals. However, it produces large volume of liquid waste composed mainly of petroluem-derived solvents.
Here, we proposed the monoterpenes as alternative green solvents for the preparation of halide perovskites nanocrystals [1,2]. Specifically, limonene (R- and S-), α-pinene (1R- and 1S-) and β-pinene (1S-) have been selected due to their relative high boiling point, stability and natural origin. We succesfully synthesized CsPbX3 (X = Cl, Br, I) in form of nanocubes, nanoplates and nanorods and expanded the method also for the double perovskites. The synthesized NCs resemble the same structural and morphological properties of the homologues prepared in the common solvents, i.e. 1-octadecene with comparable optical properties. Moreover, exploiting the relative high volatility of these solvents under vacuum, we verified their quantitatively remotion from the final NCs limiting the washing step. The waste of the reactions can be distilled recovering pure solvent that can be reused for subsequent syntheses.
F.L. and M.C. acknowledge Fondazione Compagnia di San Paolo, Bando TRAPEZIO project NANOPLUS - ID#118000; F.L. and M.V. acknowledge National Recovery and Resilience Plan (NRRP), funded by the European Union – NextGenerationEU, CUP - D33C22001330002 project title “Network 4 Energy Sustainable Transition – NEST”. The authors acknowledge the Electron Microscopy Facility of Istituto Italiano di Tecnologia for support on TEM analyses.
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.