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Title: Flat epitaxial quasi-1D phosphorene chains

Journal Article · · Nature Communications
 [1];  [2];  [3]; ORCiD logo [2];  [3];  [4];  [4];  [5];  [2]; ORCiD logo [6]
  1. Université Paris-Saclay, Orsay (France). Centre National de la Recherche Scientifique (CNRS). Institut des Sciences Moléculaires d’Orsay; Université Paris-Saclay, Orsay (France)
  2. Université Paris-Saclay, Orsay (France). Centre National de la Recherche Scientifique (CNRS). Institut des Sciences Moléculaires d’Orsay
  3. Synchrotron SOLEIL, Gif-sur-Yvette, Cedex (France). TEMPO Beamline
  4. Université Paris-Saclay, Orsay (France). Centre National de la Recherche Scientifique (CNRS). Alternative Energies and Atomic Energy Commission (CEA). Service de Physique de l’Etat Condense
  5. Univ. of Central Florida, Orlando, FL (United States). Dept. of Physics
  6. Université Paris-Saclay, Orsay (France). Centre National de la Recherche Scientifique (CNRS). Institut des Sciences Moléculaires d’Orsay; CY Cergy Paris Université, Cergy-Pontoise, Cedex (France). Département de Physique; CY Cergy Paris Université, Cergy-Pontoise, Cedex (France)

The emergence of peculiar phenomena in 1D phosphorene chains (P chains) has been proposed in theoretical studies, notably the Stark and Seebeck effects, room temperature magnetism, and topological phase transitions. Attempts so far to fabricate P chains, using the top-down approach starting from a few layers of bulk black phosphorus, have failed to produce reliably precise control of P chains. We show that molecular beam epitaxy gives a controllable bottom-up approach to grow atomically thin, crystalline 1D flat P chains on a Ag(111) substrate. Scanning tunneling microscopy, angle-resolved photoemission spectroscopy, and density functional theory calculations reveal that the armchair-shaped chains are semiconducting with an intrinsic 1.80 ± 0.20 eV band gap. This could make these P chains an ideal material for opto-electronic devices.

Research Organization:
Univ. of Central Florida, Orlando, FL (United States)
Sponsoring Organization:
Chinese Scholarship Council; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0007045
OSTI ID:
1850983
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 12; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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