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Electronic properties of functionalized (5,5) beryllium oxide nanotubes
Ernesto Chigo Anota1, Gregorio Hernández Cocoletzi
1Benemérita Universidad Autónoma de Puebla, Facultad de Ingeniería Química, Ciudad Universitaria, San Manuel, Puebla, Código Postal 72570, Mexico. ernesto.chigo@correo.buap.mx
Functionalizing beryllium oxide nanotubes with hydroxyl groups enhances their polarity and suitability for device fabrication. Surface defects further reduce the work function, opening possibilities for electronic industry applications.
Area of Science:
- Materials Science
- Computational Chemistry
- Condensed Matter Physics
Background:
- Single-wall beryllium oxide nanotubes (SW-BeONTs) are promising nanomaterials.
- Understanding their structural and electronic properties is crucial for applications.
Purpose of the Study:
- To investigate the structural and electronic properties of hydroxyl-functionalized SW-BeONTs.
- To explore the impact of functionalization and defects on nanotube properties.
Main Methods:
- Density Functional Theory (DFT) calculations.
- Hamprecht-Cohen-Tozer-Handy (HCTH) functional within generalized gradient approximation (GGA).
- Double Polarization (DNP) basis set for geometry optimization.
Main Results:
- Functionalization occurs at nanotube ends, forming hydrogen-like bridge bonds.
- High polarity (covalent to ionic transition) enhances solvation.
- Semiconductor behavior is preserved; work function is reduced, especially with surface defects.
Conclusions:
- Hydroxyl-functionalized SW-BeONTs exhibit favorable properties for device applications.
- Reduced work function due to defects suggests potential in the electronic industry.
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