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Structural Design of Bismuth Telluride Nanoplates through Process Variables
Jordan Ackley1,2, Ariel E Briggs1, Karthik Chinnathambi1
1Micron School of Materials Science and Engineering, Boise State University, Boise, Idaho 83725, United States.
Chemistry of Materials : a Publication of the American Chemical Society
|March 30, 2026
Summary
Precise control over bismuth telluride nanoplates is achieved through solvothermal synthesis and hot injection. This method allows for rapid, tunable synthesis of nanomaterials for quantum devices and thermoelectric generators.
Area of Science:
- Materials Science
- Nanotechnology
- Solid State Chemistry
Background:
- Bismuth tellurides and selenides are key binary pnictogen chalcogen compounds.
- Their performance in quantum devices and thermoelectric generators relies on nanoscale structural control.
- Existing synthesis methods lack speed, consistency, and scalability.
Purpose of the Study:
- To develop a controllable and scalable synthesis for bismuth telluride nanoplates.
- To investigate the independent effects of temperature and reaction time on nanoplate morphology.
- To enable tunable synthesis strategies for layered chalcogenides.
Main Methods:
- Solvothermal synthesis combined with a hot injection technique.
- Systematic variation of synthesis temperature and reaction time.
- Characterization of resulting bismuth telluride nanostructures.
Main Results:
- Precise control over bismuth telluride nanoplate morphology was achieved.
- Nanoplate shape and porosity were found to vary systematically with synthesis temperature.
- Morphological outcomes were rapidly reproducible by adjusting reaction duration at a fixed temperature.
Conclusions:
- Synthesis temperature and reaction time independently direct bismuth telluride morphological features.
- This offers a rapid, tunable, and scalable synthesis framework.
- The approach is applicable to bismuth telluride and related layered chalcogenides for energy harvesting and quantum technologies.
