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Designing Zero-Dimensional Cadmium-Based Organic-Inorganic Hybrids: The Role of Halogen Doping in Modulating
Meng-Na Wang1, Jing Wei1, Rong-Jie Hao1
1School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China.
Inorganic Chemistry
|September 10, 2024
Summary
Two novel cadmium-based hybrid materials were synthesized using halogen doping. These multifunctional materials exhibit tunable optoelectronic properties, paving the way for advanced smart materials and devices.
Area of Science:
- Materials Science
- Solid-State Chemistry
- Optoelectronics
Background:
- Multifunctional materials are crucial for enhancing system efficiency and reducing environmental impact.
- Organic-inorganic hybrid materials offer tunable properties for advanced applications.
Purpose of the Study:
- To synthesize and characterize two new zero-dimensional (0D) cadmium-based organic-inorganic hybrid materials.
- To investigate the effect of halogen doping and mixed-halide composition on material properties.
Main Methods:
- Synthesis of (BEMPD)2CdBr4 (BEMPD-Br) and (BEMPD)2CdBr2Cl2 (BEMPD-ClBr) via halogen doping.
- Characterization using UV-vis absorption, photoluminescence spectroscopy, and Curie temperature measurements.
Main Results:
- Compounds 1 and 2 exhibit Curie temperatures of 348 K and 390 K, respectively.
- Direct band gaps were determined to be 4.68 eV (BEMPD-Br) and 4.8 eV (BEMPD-ClBr).
- Broadband photoluminescence emission peaks were observed at 717 nm (BEMPD-Br) and 683 nm (BEMPD-ClBr) with fluorescence lifetimes of 2.414 μs and 3.915 μs.
Conclusions:
- The synthesized 0D cadmium-based hybrids demonstrate potential for smart materials and optoelectronic devices.
- Halogen doping and mixed-halide composition effectively tune the structural distortion and properties of these hybrid compounds.
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