Video Experimental Relacionado
Updated: Aug 2, 2026
Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
Published on: October 13, 2017
Logro de luminiscencia circularmente polarizada, sintonizable espectralmente y fuerte en haluros híbridos de
Yang Chen1,2, Songbing Zhong2, Dongming Song2
1Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
Abstract:
Chiral zero-dimensional hybrid metal halides (0D HMHs) are notable in circularly polarized luminescence (CPL)-active materials for their chiroptical properties, yet efficient and adjustable CPL in chiral 0D HMHs remain rarely reported. This study presents a novel dual-doping strategy at A and B sites for tunable CPL in chiral 0D HMHs. For indium-based HMHs using the purely chiral cation S-2-methylpiperazine, B-site Sb3+ doping yields significant CPL and intense yellow fluorescence, with near-unity photoluminescence quantum yield (PLQY) and high luminescence dissymmetry factor (glum) of 6.7 ×1 0-2. Notably, the introduction of 2,6-dimethylpiperazine at the A-site, alongside Sb3+ B-site doping, enables synergistic emission that spans blue and yellow light, thereby achieving white light emission in chiral 0D HMHs for the first time. This system achieves a PLQY of 46.08% and a glum of 2.1 × 10-2, underscoring its remarkable CPL performance and spectral tunability. Near-ultraviolet pumped white light shows 25.5% polarization. This study offers a new strategy for crafting chiral 0D HMHs with tunable spectra, high PLQY, and elevated glum.
