Lead-Halide Perovskite Nanocrystals for Light-Emitting Diodes and X-Ray Imaging
This community focuses on the synthesis and optoelectronic engineering of lead-halide perovskite nanocrystals, primarily for use in high-efficiency light-emitting diodes and sensitive X-ray detectors.
The work centers on the chemical synthesis of cesium lead bromide and iodide nanocrystals, with a strong emphasis on improving photoluminescence quantum yield and long-term stability. Researchers employ strategies such as ligand engineering, core-shell structures, and the development of lead-free alternatives to mitigate toxicity and degradation. The resulting materials are integrated into light-emitting diodes for display and lighting applications, as well as scintillators for X-ray imaging. Key technical challenges addressed include managing halide migration, reducing defect densities, and achieving stable emission across the visible and near-infrared spectra. The community also explores single-crystal growth and reduced-dimensional structures to enhance charge transport and emission efficiency.
The largest share of the community's output is found in caesium research, accounting for 19.9% of all caesium research tracked, and 3,764 papers here. Lead contributes the highest paper count within this group, with 4,852 papers, representing 2.3% of all lead research.
The community comprises 17,337 papers, publishing most frequently in Advanced Optical Materials, The Journal of Physical Chemistry Letters, and Advanced Functional Materials.
Recent work continues to focus on stabilizing perovskite nanocrystals with near-unity quantum yields, developing lattice-matched molecular anchors for high-performance light-emitting diodes, and engineering scintillators for efficient 3D X-ray imaging.