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Title: High electron mobility and quantum oscillations in non-encapsulated ultrathin semiconducting Bi2O2Se

Journal Article · · Nature Nanotechnology
 [1];  [2];  [3];  [4];  [5]; ORCiD logo [6];  [1];  [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [3];  [3];  [2];  [2];  [1];  [4]; ORCiD logo [5];  [1]
  1. Peking Univ., Beijing (China). Center for Nanochemistry, Beijing National Lab. for Molecular Sciences (BNLMS)
  2. Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials; SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
  3. Peking Univ., Beijing (China). State Key Lab. for the Physics and Chemistry of Nanodevices
  4. Univ. of Oxford (United Kingdom). Dept. of Physics and Clarendon Lab.
  5. Max Planck Inst. for Chemical Physics of Solids, Dresden (Germany); ShanghaiTech Univ. (China). School of Physical Science and Technology
  6. Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials

Identifying new two-dimensional (2D) materials with both high carrier mobility and a large electronic band gap is critical for novel electronics and optoelectronics applications. Here, we demonstrated a new air-stable ultrahigh-mobility layered Bi2O2Se semiconductor with a large band gap of ~ 0.8 eV and a low effective mass of ~ 0.14 m0. High-quality 2D Bi2O2Se crystals with a thickness down to a monolayer and a domain size greater than 200 μm were readily grown by chemical vapor deposition (CVD). Size-tunable band gap of Bi2O2Se was found to increase as thinning down to the monolayer due to the quantum confinement effect. An ultrahigh Hall mobility of > 20,000 cm2 V-1 s-1 was achieved in as-grown Bi2O2Se flakes at 1.9 K, which allows for the observation of Shubnikov–de Haas quantum oscillations. Top-gated field-effect transistors based on CVD-grown 2D Bi2O2Se crystals (down to bilayer) exhibited high Hall mobility (up to 450 cm2 V-1 s-1), large current on/off ratios (>106) and near-ideal subthreshold swings (~65 mV/dec) at room temperature. Our results make the high-mobility 2D Bi2O2Se semiconductor a promising candidate for future high-speed and low-power electronic applications.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1348989
Journal Information:
Nature Nanotechnology, Vol. 12, Issue 3; ISSN 1748-3387
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 384 works
Citation information provided by
Web of Science

References (39)

Synthesis, characterisation and thermoelectric properties of the oxytelluride Bi2O2Te journal March 2015
Experimental observation of the quantum Hall effect and Berry's phase in graphene journal November 2005
Liquid Exfoliation of Layered Materials journal June 2013
Mobility overestimation due to gated contacts in organic field-effect transistors journal March 2016
Phosphorene excites materials scientists journal February 2014
Controlled Synthesis of Topological Insulator Nanoplate Arrays on Mica journal March 2012
Van der Waals heterostructures journal July 2013
Electric Field Effect in Atomically Thin Carbon Films journal October 2004
Electronics and optoelectronics of two-dimensional transition metal dichalcogenides journal November 2012
Topological insulator nanostructures for near-infrared transparent flexible electrodes journal February 2012
Graphene transistors journal May 2010
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Quantum Hall effect in black phosphorus two-dimensional electron system journal March 2016
Two-dimensional semiconductors with possible high room temperature mobility journal September 2014
Multi-terminal transport measurements of MoS2 using a van der Waals heterostructure device platform journal April 2015
Measurement of mobility in dual-gated MoS2 transistors journal March 2013
On the Extraction of Charge Carrier Mobility in High-Mobility Organic Transistors journal November 2015
Die Kristallstruktur von Bi2O2Se journal January 1973
One-Dimensional Electrical Contact to a Two-Dimensional Material journal October 2013
Thickness-dependent bulk properties and weak antilocalization effect in topological insulator Bi 2 Se 3 journal August 2011
Electronics based on two-dimensional materials journal October 2014
Mobility engineering and a metal–insulator transition in monolayer MoS2 journal June 2013
A high-mobility electron gas at the LaAlO3/SrTiO3 heterointerface journal January 2004
Charge transport and mobility engineering in two-dimensional transition metal chalcogenide semiconductors journal January 2016
Accurate Band Gaps of Semiconductors and Insulators with a Semilocal Exchange-Correlation Potential journal June 2009
Large-Area Synthesis of High-Quality and Uniform Graphene Films on Copper Foils journal May 2009
Environmental instability of few-layer black phosphorus journal January 2015
Black phosphorus field-effect transistors journal March 2014
Single-layer MoS2 transistors journal January 2011
Thermal Decomposition of Bismuth Oxysulfide from Photoelectric Bi 2 O 2 S to Superconducting Bi 4 O 4 S 3 journal February 2015
Two-dimensional gas of massless Dirac fermions in graphene journal November 2005
High-mobility transport anisotropy and linear dichroism in few-layer black phosphorus journal July 2014
Isospin Pomeranchuk effect in twisted bilayer graphene journal April 2021
Measurement of mobility in dual-gated MoS2 transistors text January 2013
Mobility engineering and metal-insulator transition in monolayer MoS2 text January 2013
Two dimensional semiconductors with possible high room temperature mobility text January 2014
Charge transport and mobility engineering in two-dimensional transition metal chalcogenide semiconductors text January 2016
Electric Field Effect in Atomically Thin Carbon Films text January 2004
Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene text January 2005

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Synthesis of Large‐Area Atomically Thin BiOI Crystals with Highly Sensitive and Controllable Photodetection journal February 2019
Engineering Field Effect Transistors with 2D Semiconducting Channels: Status and Prospects journal July 2019
Growth and Raman Scattering Investigation of a New 2D MOX Material: YbOCl journal August 2019
Sodium‐Mediated Epitaxial Growth of 2D Ultrathin Sb 2 Se 3 Flakes for Broadband Photodetection journal March 2020
Ultrasensitive 2D Bi 2 O 2 Se Phototransistors on Silicon Substrates journal November 2018
Heteroanionic Materials by Design: Progress Toward Targeted Properties journal March 2019
Truly Concomitant and Independently Expressed Short‐ and Long‐Term Plasticity in a Bi 2 O 2 Se‐Based Three‐Terminal Memristor journal September 2018
Liquid-Alloy-Assisted Growth of 2D Ternary Ga 2 In 4 S 9 toward High-Performance UV Photodetection journal November 2018
Molecular Beam Epitaxy and Electronic Structure of Atomically Thin Oxyselenide Films journal August 2019
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Optical Properties and Photocarrier Dynamics of Bi 2 O 2 Se Monolayer and Nanoplates journal March 2020
Unusual Fermi‐Level Pinning and Ohmic Contact at Monolayer Bi 2 O 2 Se–Metal Interface journal February 2019
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Propose two-dimensional Sb 2 Te 2 X (X = S, Se) with isotropic electron mobility and remarkable visible-light response journal January 2019
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Intrinsically low thermal conductivity of bismuth oxychalcogenides originating from interlayer coupling journal January 2019
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Thermal transport and energy dissipation in two-dimensional Bi 2 O 2 Se journal November 2019
2D semiconductors towards high-performance ultraviolet photodetection journal May 2019
Highly in-plane anisotropic 2D semiconductors β -AuSe with multiple superior properties: a first-principles investigation journal July 2019
Electrochemically exfoliated thin Bi 2 Se 3 films and van der Waals heterostructures Bi 2 Se 3 /graphene journal January 2020
Epitaxial growth and characterization of high quality Bi 2 O 2 Se thin films on SrTiO 3 substrates by pulsed laser deposition journal January 2020
Unusual Electronic Transitions in Two-dimensional Layered Sn Sb 2 Te 4 Driven by Electronic State Rehybridization journal June 2019
NbS 2 : A Promising p -Type Ohmic Contact for Two-Dimensional Materials journal December 2019
Tunable magnetic order in transition metal doped, layered, and anisotropic B i 2 O 2 Se : Competition between exchange interaction mechanisms journal August 2019
Surface electronic structure of bismuth oxychalcogenides journal September 2019
Nontrivial strength of van der Waals epitaxial interaction in soft perovskites journal July 2018
Electronic structures and unusually robust bandgap in an ultrahigh-mobility layered oxide semiconductor, Bi 2 O 2 Se journal September 2018
Confined van der Waals Epitaxial Growth of Two-Dimensional Large Single-Crystal In 2 Se 3 for Flexible Broadband Photodetectors journal March 2019
Two-Dimensional Pnictogen for Field-Effect Transistors journal October 2019
Elastic Properties of 2D Ultrathin Tungsten Nitride Crystals Grown by Chemical Vapor Deposition journal June 2019
Sensitive and Ultrabroadband Phototransistor Based on Two‐Dimensional Bi 2 O 2 Se Nanosheets journal September 2019
Seed‐Induced Vertical Growth of 2D Bi 2 O 2 Se Nanoplates by Chemical Vapor Transport journal September 2019
An Ultrabroadband Mid-Infrared Pulsed Optical Switch Employing Solution-Processed Bismuth Oxyselenide journal June 2018
Synergistical Enhancement of Thermoelectric Properties in n‐Type Bi 2 O 2 Se by Carrier Engineering and Hierarchical Microstructure journal July 2019
Space‐confined microwave synthesis of ternary‐layered BiOCl crystals with high‐performance ultraviolet photodetection journal August 2019
Electric‐Field Control of Dirac Two‐Dimensional Electron Gas in PbTe/CdTe Heterostructures journal January 2019
Bolometric Effect in Bi 2 O 2 Se Photodetectors journal September 2019
Bi2ZnOB2O6: a polar material capable of photocatalytic degradation of Rhodamine B journal June 2018
Salt-assisted chemical vapor deposition of two-dimensional materials journal August 2019
Electric-field-tuned topological phase transition in ultrathin Na3Bi journal December 2018
Nonequilibrium Magnetic Oscillation with Cylindrical Vector Beams journal October 2018
Recent advances in ternary two-dimensional materials: synthesis, properties and applications journal January 2017
2D library beyond graphene and transition metal dichalcogenides: a focus on photodetection journal January 2018
Bismuth oxysulfide modified ZnO nanorod arrays as an efficient electron transport layer for inverted polymer solar cells journal January 2019
Confined van der Waals Epitaxial Growth of Two-Dimensional Large Single-Crystal In 2 Se 3 for Flexible Broadband Photodetectors journal March 2019
Chemical Patterning of High-Mobility Semiconducting 2D Bi 2 O 2 Se Crystals for Integrated Optoelectronic Devices journal October 2017
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Strong spin-orbit interaction and magnetotransport in semiconductor Bi$_2$O$_2$Se nanoplates text January 2018