Applied Physics Letters, volume 112, issue 17, pages 171607

Bandgap opening in hydrogenated germanene

Q. Yao ¹

L. Zhang ^{1, 2}

N. S. Kabanov ^{1, 3}

A N Rudenko ^{4, 5, 6}

T Arjmand ^{1, 7}

H. Rahimpour Soleimani ⁷

A. L. Klavsyuk ³

Arie van Houselt ¹

Hide authors affiliations Show authors affiliations: 7 affiliations

Physics of Interfaces and Nanomaterials group, MESA+ Institute for Nanotechnology, University of Twente 1 , P.O. Box 217, 7500AE Enschede, The Netherlands |

School of Physics and Electronics, Hunan University 2 , Changsha 410082, China |

Faculty of Physics, Lomonosov Moscow State University 3 , 119991 Moscow, Russia |

⁴

School of Physics and Technology, Wuhan University 4 , Wuhan 430072, China |

⁵

Theoretical Physics and Applied Mathematics Department, Ural Federal University 5 , Mira Str. 19, 620002 Ekaterinburg, Russia |

⁶

Institute for Molecules and Materials, Radboud University 6 , Heijendaalseweg 135, 6525 AJ Nijmegen, The Netherlands |

⁷

Computational Nanophysics Laboratory, Department of Physics, Faculty of Science, University of Guilan 7 , Rasht, Iran |

Publication type: Journal Article

Publication date: 2018-04-23

AIP Publishing

Journal: Applied Physics Letters

Quartile SCImago

Quartile WOS

Impact factor: 4

ISSN: 00036951, 10773118

DOI: 10.1063/1.5026745

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Physics and Astronomy (miscellaneous)

Abstract

We have studied the hydrogenation of germanene synthesized on Ge2Pt crystals using scanning tunneling microscopy and spectroscopy. The germanene honeycomb lattice is buckled and consists of two hexagonal sub-lattices that are slightly displaced with respect to each other. The hydrogen atoms adsorb exclusively on the Ge atoms of the upward buckled hexagonal sub-lattice. At a hydrogen exposure of about 100 L, the (1 × 1) buckled honeycomb structure of germanene converts to a (2 × 2) structure. Scanning tunneling spectra recorded on this (2 × 2) structure reveal the opening of a bandgap of about 0.2 eV. A fully (half) hydrogenated germanene surface is obtained after an exposure of about 9000 L hydrogen. The hydrogenated germanene, also referred to as germanane, has a sizeable bandgap of about 0.5 eV and is slightly n-type.

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Yao Q. et al. Bandgap opening in hydrogenated germanene // Applied Physics Letters. 2018. Vol. 112. No. 17. p. 171607.

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Yao Q., Zhang L., Kabanov N. S., Rudenko A. N., Arjmand T., Rahimpour Soleimani H., Klavsyuk A. L., van Houselt A. Bandgap opening in hydrogenated germanene // Applied Physics Letters. 2018. Vol. 112. No. 17. p. 171607.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1063/1.5026745

UR - https://doi.org/10.1063/1.5026745

TI - Bandgap opening in hydrogenated germanene

T2 - Applied Physics Letters

AU - Yao, Q.

AU - Zhang, L.

AU - Kabanov, N. S.

AU - Rudenko, A N

AU - Arjmand, T

AU - Rahimpour Soleimani, H.

AU - Klavsyuk, A. L.

AU - van Houselt, Arie

PY - 2018

DA - 2018/04/23

PB - AIP Publishing

SP - 171607

IS - 17

VL - 112

SN - 0003-6951

SN - 1077-3118

ER -

BibTex |

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BibTex Copy

@article{2018_Yao,

author = {Q. Yao and L. Zhang and N. S. Kabanov and A N Rudenko and T Arjmand and H. Rahimpour Soleimani and A. L. Klavsyuk and Arie van Houselt},

title = {Bandgap opening in hydrogenated germanene},

journal = {Applied Physics Letters},

year = {2018},

volume = {112},

publisher = {AIP Publishing},

month = {apr},

url = {https://doi.org/10.1063/1.5026745},

number = {17},

pages = {171607},

doi = {10.1063/1.5026745}

}

MLA

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MLA Copy

Yao, Q., et al. “Bandgap opening in hydrogenated germanene.” Applied Physics Letters, vol. 112, no. 17, Apr. 2018, p. 171607. https://doi.org/10.1063/1.5026745.

Found error?

Publisher

AIP Publishing

Journal

Applied Physics Letters

Quartile SCImago

Quartile WOS

Impact factor

ISSN

00036951 ()
10773118 ()

Labs

Group of theoretical studies of nanostructures

Profiles

Klavsyuk, Andrey L