Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP27)
Publication date: 22nd October 2026
Circularly polarized light-emitting diodes (CP-LEDs) offer potential applications in three-dimensional displays, information encryption, and optical communication. However, achieving efficient molecular chirality transfer and large luminescence dissymmetry factors while maintaining high photoluminescence quantum yields in inorganic perovskite nanoplatelets remains challenging. Here, we employ a surface coordination strategy to functionalize CsPbI3 nanoplatelets (NPLs) with a pair of chiral ligands containing two carbonyl groups, thereby introducing chiroptical activity into the inorganic semiconductor. X-ray photoelectron spectroscopy (XPS) reveals a shift of the Pb 4f binding energies toward lower values following ligand functionalization, consistent with coordination interactions between the ligand carbonyl groups and surface Pb sites. These interfacial interactions may modify the local electronic environment and contribute to the transfer of molecular chirality to the inorganic semiconductor. The functionalized NPLs exhibit mirror-image circular dichroism (CD) signals near the band-edge excitonic absorption and circularly polarized luminescence (CPL) with opposite handedness, indicating that surface functionalization induces enantiomer-dependent chiroptical responses. Meanwhile, the chiral NPLs retain narrowband red emission centered at 645 nm with a full width at half maximum (FWHM) of 33 nm, while maintaining a photoluminescence quantum yield (PLQY) of 96% and achieving an absolute luminescence dissymmetry factor (|g_lum|) of 1.5×10-2. The chiral NPLs are further incorporated as the emissive layer in red light-emitting diodes, with preliminary device results supporting their feasibility for electroluminescent applications. These findings link the surface coordination of chiral dicarbonyl ligands to the chiroptical response of CsPbI3 nanoplatelets and provide a strategy for generating circularly polarized emission from inorganic perovskite nanocrystals while preserving high luminescence efficiency.
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.