Phosphorene is a new two-dimensional material composed of a single or few atomic layers of black phosphorus. Phosphorene has both an intrinsic tunable direct band gap and high carrier mobility values, which make it suitable for a large variety of optical and electronic devices. However, the synthesis of single-layer phosphorene is a major challenge. The standard procedure to obtain phosphorene is by exfoliation. More recently, the epitaxial growth of single-layer phosphorene on Au(111) has been investigated by molecular beam epitaxy and the obtained structure has been described as a blue-phosphorene sheet. In the present study, large areas of high-quality monolayer phosphorene, with a band gap value at least equal to 0.8 eV, have been synthesized on Au(111). Our experimental investigations, coupled with DFT calculations, give evidence of two distinct phases of blue phosphorene on Au(111), instead of one as previously reported, and their atomic structures have been determined.
@article{arxiv.1811.01289,
title = {Epitaxial Synthesis of Blue Phosphorene},
author = {Wei Zhang and Hanna Enriquez and Yongfeng Tong and Azzedine Bendounan and Abdelkader Kara and Ari P. Seitsonen and Andrew J. Mayne and Gérald Dujardin and Hamid Oughaddou},
journal= {arXiv preprint arXiv:1811.01289},
year = {2018}
}
Comments
This paper reports on the epitaxial synthesis of blue phosphorene