journal article·2018-07Open access

Black Arsenic: A Layered Semiconductor with Extreme In‐Plane Anisotropy

Yabin Chen, Chaoyu Chen, Robert Kealhofer, Huili Liu, Zhiquan Yuan, Lili Jiang, Joonki Suh, Joonsuk Park, Changhyun Ko, Hwan Sung Choe, José Avila, Mianzeng Zhong, Zhongming Wei, Jingbo Li, Shushen Li, Hongjun Gao, Yunqi Liu, James Analytis, Qinglin Xia, Maria C. Asensio, Junqiao Wu

Advanced Materials· Volume 30· Issue 30

Abstract

Abstract 2D layered materials have emerged in recent years as a new platform to host novel electronic, optical, or excitonic physics and develop unprecedented nanoelectronic and energy applications. By definition, these materials are strongly anisotropic between the basal plane and cross the plane. The structural and property anisotropies inside their basal plane, however, are much less investigated. Black phosphorus, for example, is a 2D material that has such in‐plane anisotropy. Here, a rare chemical form of arsenic, called black‐arsenic (b‐As), is reported as a cousin of black phosphorus, as an extremely anisotropic layered semiconductor. Systematic characterization of the structural, electronic, thermal, and electrical properties of b‐As single crystals is performed, with particular focus on its anisotropies along two in‐plane principle axes, armchair (AC) and zigzag (ZZ). The analysis shows that b‐As exhibits higher or comparable electronic, thermal, and electric transport anisotropies between the AC and ZZ directions than any other known 2D crystals. Such extreme in‐plane anisotropies can potentially implement novel ideas for scientific research and device applications.
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Research context

OpenAlex topics: 2D Materials and Applications · Quantum Dots Synthesis And Properties · Graphene research and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Science and Engineering University of California Berkeley CA 94720 USA

ANTARES Beamline Synchrotron SOLEIL Université Paris‐Saclay L'Orme des Merisiers Saint Aubin‐BP 48 91192 Gif sur Yvette Cedex France

Department of Physics University of California Berkeley CA 94720 USA

Materials Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA

Institute of Physics and University of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100190 China

Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

Department of Materials Science and Engineering Stanford University Stanford CA 94305 USA

State Key Laboratory of Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 China

School of Physics and Electronics Hunan Key Laboratory for Super‐microstructure and Ultrafast Process Central South University Changsha 410083 China

Funding

National Science Foundation · China Scholarship Council · National Natural Science Foundation of China · Chicago State University · Centre National de la Recherche Scientifique

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