Journal
SUPERLATTICES AND MICROSTRUCTURES
Volume 97, Issue -, Pages 562-568Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.spmi.2016.07.027
Keywords
Phosphorene; Twisted; ab initio
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Funding
- Universidad de Medellin Research Office [746, 747]
- Chilean FONDECYT [11130129]
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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. (C) 2016 Elsevier Ltd. All rights reserved.
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