Dynamic Coordination Geometry Transformation for Near-Unity PLQY and Photo-Tunable Full-Color Circularly Polarized Luminescence
The rational design of chiral ligands for perovskite quantum dots (PQDs) and the understanding of their structure-property relationships is challenging. Herein, l/d-proline (l/d-Pro) induces a concentration-dependent coordination transition from monofunctional to bidentate mode, enabling defect passivation and chiral transfer. green chiral PQDs achieve 99.69% photoluminescence quantum yield (PLQY) and emission dissymmetry factor (<i>g</i><sub>lum</sub>) of -2.1 × 10<sup>-3</sup>. A light-mediated halide exchange strategy enables full-visible (440-760 nm) emission tuning, enhancing |<i>g</i><sub>lum</sub>| to 7.1 × 10<sup>-3</sup> while maintaining high blue/red PLQYs (88.96%/91.42%) via enhanced octahedral distortion. High-performance full-color circularly polarized light-emitting diodes (CP-LEDs) and white LEDs are fabricated, providing a paradigm for chiral perovskite optoelectronic device design.
Authors
- DongYun Li
- Zhong‐Hong Zhu (ORCID: https://orcid.org/0000-0003-1968-4855)
- Xingrong Quan
- Bin Luo (ORCID: https://orcid.org/0000-0001-9028-6169)
- Anxiang Guan (ORCID: https://orcid.org/0009-0002-1319-4919)
- Yuan Yang (ORCID: https://orcid.org/0000-0002-9206-0312)
- Ping Chen (ORCID: https://orcid.org/0000-0003-0274-5674)
- Xiaohua Lan
- Jumei Wei
- Yixie Chen
- Liya Zhou
- Yuming Su
- Yihua Yang
- Xinguo Zhang
- Qi Pang
- Chunyan Zhou
Institutions
- Guangxi University (CN)
- Guangxi Medical University (CN)
- National Center for Drug Screening (CN)
- Tan Kah Kee Innovation Laboratory (CN)
- Pharmaceutical Biotechnology (Czechia) (CZ)
- Southern Medical University (CN)
Publication Details
- Journal
- The Journal of Physical Chemistry Letters
- Published
- 2026-03-11
- DOI
- https://doi.org/10.1021/acs.jpclett.6c00244
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00