Twisted bilayer blue phosphorene: A direct band gap semiconductor
We report that two rotated layers of blue phosphorene behave as a direct band gap semiconductor. The optical spectrum shows absorption peaks in the visible region of the spectrum and in addition the energy of these peaks can be tuned with the rotational angle. These findings makes twisted bilayer bl...
- Autores:
- Tipo de recurso:
- Fecha de publicación:
- 2016
- Institución:
- Universidad de Medellín
- Repositorio:
- Repositorio UDEM
- Idioma:
- eng
- OAI Identifier:
- oai:repository.udem.edu.co:11407/2873
- Acceso en línea:
- http://hdl.handle.net/11407/2873
- Palabra clave:
- ab initio
Phosphorene
Twisted
Absorption spectroscopy
Calculations
III-V semiconductors
Ab initio
Ab initio calculations
Absorption peaks
Direct band gap semiconductors
Phosphorene
Rotational angle
Twisted
Twisted bilayers
Energy gap
- Rights
- restrictedAccess
- License
- http://purl.org/coar/access_right/c_16ec
| Summary: | We report that two rotated layers of blue phosphorene behave as a direct band gap semiconductor. The optical spectrum shows absorption peaks in the visible region of the spectrum and in addition the energy of these peaks can be tuned with the rotational angle. These findings makes twisted bilayer blue phosphorene a strong candidate as a solar cell or photodetection device. Our results are based on ab initio calculations of several rotated blue phosphorene layers. |
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