A three-dimensional cuprous lead bromide framework with highly efficient and stable thermochromic luminescence...

Area of Science:

• Materials Science
• Inorganic Chemistry
• Solid-State Chemistry

Background:

• Developing novel metal halide materials with unique structural and photoluminescent properties is crucial for advanced applications.
• Exploring hetrometallic halide blocks offers a promising strategy for designing complex crystal structures.

Purpose of the Study:

• To synthesize and characterize the first 3D bimetallic halide incorporating hetrometallic halide blocks.
• To investigate the thermochromic luminescence properties and stability of the newly prepared material.

Main Methods:

• Utilized a structural design strategy involving hetrometallic halide blocks.
• Prepared the 3D bimetallic halide compound [H₂DABCO]₂Cu₆PbBr₁₂.
• Characterized the crystal structure and topological network, identifying two types of 6-connected nodes.

Main Results:

• Successfully synthesized the first 3D bimetallic halide, [H₂DABCO]₂Cu₆PbBr₁₂.
• The material exhibits a novel topological network with 6-connected nodes.
• Demonstrated highly efficient thermochromic luminescence, emitting broadband yellow to green light.

Conclusions:

• The incorporation of hetrometallic halide blocks is an effective strategy for constructing novel 3D bimetallic halide frameworks.
• The [H₂DABCO]₂Cu₆PbBr₁₂ material displays remarkable thermochromic luminescence and stability, suggesting potential applications in temperature-sensing or optoelectronic devices.