Related Experiment Video
Updated: Dec 13, 2025
10:13
A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
Published on: April 28, 2023
2.9K
Efficient, broadband self-trapped white-light emission from haloplumbate-based metal-organic frameworks
Xueling Song1, Chengdong Peng, Xiaoxiang Xu
1Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji Universtiy, 1239 Siping Rd., Shanghai 200092, P. R. China. fei@tongji.edu.cn.
Chemical Communications (Cambridge, England)
|August 1, 2020
Summary
New metal-organic frameworks (MOFs) with deformable haloplumbate units emit intrinsic white light. These materials combine MOF and lead perovskite properties, showing high efficiency and moisture stability.
Area of Science:
- Materials Science
- Chemistry
- Nanotechnology
Background:
- Metal-organic frameworks (MOFs) are versatile porous materials.
- Lead perovskites are known for their optoelectronic properties.
- Developing intrinsic white-light emitters with robust properties is challenging.
Purpose of the Study:
- To synthesize novel MOFs with low-dimensional, deformable haloplumbate secondary building units (SBUs).
- To investigate the potential of these MOFs as intrinsic white-light emitters.
- To assess the photoluminescence quantum efficiency (PLQY) and chemical stability of the synthesized MOFs.
Main Methods:
- Synthesis of two novel MOFs featuring strained haloplumbate SBUs with zigzag connectivity in single-stranded helices.
- Characterization of structural and photophysical properties.
- Evaluation of photocarrier diffusion and chemical robustness under varying humidity levels.
Main Results:
- Successful synthesis of MOFs with highly strained, deformable haloplumbate SBUs.
- Observation of intrinsic white-light emission attributed to electron-phonon coupling in the SBUs.
- Achieved external PLQY of 12-15%, outperforming previously reported MOFs.
- Demonstrated excellent chemical robustness in up to 90% relative humidity, incorporating lead perovskite properties.
Conclusions:
- The synthesized MOFs represent a new class of intrinsic white-light emitters.
- The strained, deformable haloplumbate SBUs are key to achieving white-light emission and high PLQY.
- These MOFs exhibit promising stability and photocarrier diffusion, making them suitable for optoelectronic applications.
